Thank you so much- just had new boiler installed, after our old faithful Glow Worm was costing so much to run in difficult times. The engineer told me if was a breeze to set up- but any technology in your late sixties is difficult to understand. You explained it so well, and we now mainly use the boiler in manual mode. The instructions were awful- but your video explained everything in plain English- well done, it is so much appreciated !!
Thank you Mark. Even after reading the instruction booklet I could not figure how to set up the T4m. Your video was so informative and help full I could not have programmed the unit without it.
Hi Mark My previous Honeywell thermostat died suddenly and your videos were really useful in deciding which replacement to buy and get installed and programmed in record time. Many thanks. Much appreciated!
Thanks..will watch again when I have calmed down. My installer didn’t really have a clue how to operate this……and it is NOT intuitive at all..told me heating companies ‘have spent millions’ making sure these thermostats are easy for the techno phobe older generation. All I can say is that they wasted their money! So much easier when my controls were a manual dial, and not digital …..pushing one button, then another…..ticks etc etc
Good video but there’s lots more you could cover. There is both optimum start, which I use, and delayed start, as well as optimum stop. These need to be selected in the installation menu. Also, these stats don’t work like conventional mechanical thermostats where the heating is run continuously until the set temperature as reached with the boiler cycling the burner on and off as flow temperature set on the boiler stat rises and falls. The T4 series runs the heating for quite a long period from initial start when the room is cold but, as the room temp rises closer to set point, from about 1.5C below, the T4 will cycle the heating on and off quite frequently. It can be a bit puzzling to see the room temperature at say, 17.5C but the heating switched off when the set point is 19C. It uses latent heat coming off the radiators with an occasional boost of hot water from the boiler to eventually get the room to set point but it doesn’t do it in the conventional way. The saving on gas is noticeable - my first CM927 which the T4 replaced paid for itself in a year with lower bills. Optimum start uses artificial intelligence to work out in the first few weeks of use how long the heating system takes to warm the room to set point and adjusts on time to suit - it may start an hour earlier than the set time on a very cold winter morning but only 5 or 10 minutes early in milder weather. Optimum stop will stop heating earlier than set if the stat calculates the room will remain at set point until the desired final off time off the day. I use 17C overnight so the house doesn’t cool too much and take too long to heat up again next morning.
So helpful. Avoided us aving to call an engineer after frustrating morning trying to solve connectivity issues, by describing the (30 second) fix which stupidly was not in the manufacturer's information. So grateful for the video
Thank you Mark. I could'nt work out why I had identical T4's with different weekday settings.....and there it was. I am using the T4 to replace 4 seperate standard Honeywell manual zone thermostats controlling my underfloor heating. A great straightforward and understandable explanation.
Thank you so much! This was very helpful! I recently moved into my flat and this was already installed with no instructions 😅 mine doesn’t have a battery though or that wireless thing but pretty much the same. It is stuck to the wall and if I remove it it resets 😊
This is SO helpful! I wasn't sure whether I needed the T4 or the T4R and within a couple of minutes you'd given me the answer through this video. Thank you again and best wishes for you and your channel.
Really useful, gave details such as overriding a programme for specified number of hours and holiday/away settings etc which were simply not mentioned in Honeywell's own manual. Likewise how to 'unhide' options like the Optimisation settings which are useful but not on the menu as received. Well done Mark!
Hi. I just bought and installed a T4R. For the moment, I am keeping it on Manual on a low temperature 15C as no one is leaving in the house. The temperature has settled since at this low temperature so now the ambient temperature is the same as the manually set temperature on the thermostat. So now comes the tricky part. It seems like the default heating behavior of the thermostat is somehow to preserve this temperature by briefly turning ON/OFF the heating (ON for 1-2 minutes and OFF for 5 minutes). Now this for me is pretty much a waste of gas as the house has underfloor heating and turning the heating ON for just 1-2 minutes is pretty much useless as the water in the system cannot be heated that fast. I looked over the "Additional Parameteres" in this video and the ones that make some sense are the 2 CR (heating cycles per hours) + 3 OT (Minimum ON time) although these are not great either. The thermostat I was familiar with was working on a very basic principle: you set the temperature, turns ON the heating until it reaches 0.2 - 0.5 degrees above the set temperature, turns OFF the heating and then waits for the ambient temperature to drop by 0.2 - 0.5 below the set temperature and the heating cycle resumes. Is there a way to set this thermostat to work on the same principle? It is worth mentioning that the house only has the gas boiler and heat distribuitors on each floor. There is no automation yet installed to control the heating on each room yet.
Great video - super helpful. Thanks very much However I have a question please on the optimisation option on the 'special menu' - how does the optimisation option work please? I understand that the thermostat will assess the current room temperature and the next time/target temperature and then switch the boiler on/off before that target time in order for the temperature to hit the target at that time? If that's the case then you have say 7-9am at target temp of 21 degrees but then you leave the house for work at 9am so you want the target temp to fall to say 10 degrees at 9am......how does the thermostat decide on priorities? Does it turn the boiler off at say 8:30 so that the room cools down to 10 degrees at 9am or does it prioritise the 21 degree temp until 9am the turn off to try to get the temperature down to 10 degrees? If it does turn the boiler off before 9am but you definitely want the room to stay at 21 degrees until 9am how do you get round this issue (other than turning off the optimisation option!) I may have opened a can of worms here so you may ignore the question but I'm intrigued as I want to use this feature as I plan my programming Many thanks again for staying up late to make this video! Mark
Hi Mark great video, we've just had one of these installed in our Quaker meeting house, the engineer didn't know how to programme it! So I'm so pleased to watch this. My question is: can we keep this in a cupboard to stop other users of the hall tampering with it or should we just lock it as you've shown?
I noticed your start time of P1 differs from the end time of P6, without the ability to change the latter since the systems jumps directly to the temperature setting. I have the same problem here. There are gaps or overlap in the program. Any idea how to solve this?
This is fantastic help for the technically challenged like myself. I will be following with eager interest once my new Vaillant Ecotec Plus 826 is installed. Superb channel, thanks Mark.
great video, although by today's standards is there not an app you can use to control and program the heating? No need to answer I found that you need the T6 to be connected.
Thank you for a really useful video that I have saved in my favourites as I am sure to need it again. The thermostat is poorly designed and over complicated. Like most things that are improved - they never really are. Even my heating engineer found it diffficult. God help anyone who doesn't have you tube as the instruction book is rubbish and doesn't even have the parameters included. I had to google just how to take it back to factory settings.
Very useful but why does night setting not allow the off time to be changed from 6.30am. It overrides the on temperature we want for 6am in the morning. I see it jumped over the night of set time, which it did for me. We will have to manually override every morning.
I know what you mean, the last part end time, will always be the first part start time, so for example your first part begins at 7am. Then the final part is restricted to 7am, you can't set the last part (being night time) as let's say 11pm - 2am which is kinda annoying, it can only be 11pm to 7am unless someone manually turns it off
A really helpful and informative video which helped me sort out the heating parameters for daytime when I will be working. Saved for future reference. Thank you
These things are such a hassle. I have the T4 Pro which seems to have '90s tech. I can't believe they'd choose such an obtuse thing as their default. They must have gotten a discount. I wish they'd let me pick something better. I set it for 8am wakeup, and the heat starts blazing at 630. Meanwhile I have "away" at 10, yet for some reason it drops the temp in between the two. I have always wanted a programmable thermostat, but I thought it would make sense and not be such a hassle. Now I just turned the programming off and do it manually like it's 1980. I am filled with rage and no one to rage at.
Exactly! Just said the same thing! 25 years ago as a kid I just turned it on. Now I'm babysitting in this big house and it's freezing here but I don't see an "on" function! It's so irritating! It's been 2 hours watching useless videos. Over complicated useless crap. At least I know what not to buy for my house!
Thank you so much. This demonstration made it easy for me to install the receiver and program the thermostat. Great delivery and at a pace that was easy to follow. Great work 👏🏽 👍🏽
Hi Mark, great video which explains it all, even though we have the T4M. One question, we also have our hot tap water from the boiler. Now when we open the hot water tap the "flame" symbol in the thermostat also comes on, is this supposed to be like this? I think it is but I cannot find any answer on this online (so far)
Is there a way to boost it for a couple of hours without having the programme mode engaged? I don’t want the heating on, but do want to just boost it for an hour when I have a shower. Thank you!
Hi Mark - another question. Is there any way to set the heating to come on, reach a temperature and then switch off completely rather than trying to maintain (trying to work out an economical way of using the heating after the bill changes).
Great video, however my honeywell remote which looks like this one but doesn't have honeywell home on the front, just honeywell, when the suitcase is on the screen I can't get rid of it. When it's on the screen and I go back to the menu, the suitcase is not there for me to scroll across to run off. Any ideas please? thank you
I noticed last night that the heating has been coming on, and staying on, all night. I'd set it down to 5C. It won't let me reduce it any lower? I don't want it coming on at all during the night. And I don't want to have to manually turn it off every night and remember to turn it back on in the morning before everyone gets up.
Does this new T4R function/communicate with the old receiver-unit of the previous model CMS927B1019 or do I have to buy the full package incl. new CV-receiver? What's the difference between on/off or modulation thermostat? (in combi with Vaillant CV)
hI Mark, just got a new one of these, can I set it up just for on and off manually as required rather than programing it as some days we want it on and sometimes not
Oh Mark, I'm glad I decided to search on TH-cam I accidentally dropped my T4 Thermostat onto a hard floor....I now do not have any heating The receiver is flashing Red....the Flame/Heat button is not lit up with a Green Light So in watching this video....can I safely go ahead and press that heating button, even though the receiver is flashing Red?? Any advice would be greatly appreciated!
Any ideas why my boiler fires up intermittently when the thermostat is already at the temperature? Wondering if it's just keeping it at the temp, but I would think the temp on the device should drop for that to happen...
Thank you so much for this. I actually thought my device had a fault as I could not figure out why it wouldn't store the "off" tmes when programming. You explained clearly why this is the case and now I've got it properly programmed. The instruction book is not great, but your excellent video made the whole thing make sense.
Very useful video as I thought you could set it like my old Honeywell but this explains the difference etc. Great video better then the manual. Well done Mark
Thanks for vid great help. Mine is similar to this but its not wireless, lost my manual, if in the middle of night I need to run down to turn heating on just for 1hour can I do it with this, as I can't find how to, and I don't really want to be messing around with programs while being half a sleep and just want it on for 1 hr. Thanks
Hi there, Your video showed fitting the thermostat sender whilst mentioning you was adding the wires to the right side from the boiler later. My boiler is downstairs and the thermostat is upstairs on the landing which is silly as it never gets hot enough up there to activate the thermostat whilst downstairs is like an oven. So I was wanting the sender upstairs and the receiver controller downstairs. So can the sender NOT have the wires from the boiler to the right side i.e. no boiler directly connected. many thanks
At 09:30, it looks like the current time was set at 01:45 A.M. There didn't seem to be an option to change to p.m.. I suspect Mark should have continued pressing + until p.m. came up; or better still, used the 24 hour clock.
hi thank you is it normal for the boiler/pump to be on for most of the time in the heating period target is 20 rooms is 20 but the boiler is still going it will turn off when the lower target than room temperature new boiler this year thank you for any advice help
Please can someone help…. This might sound like a stupid question but which is the FIRST day that counts in the away mode setting? Is it the day you set it finishing at midnight or is it the first whole day following the day you set it?
Can you help, my scheduler didn't come on this morning and appears to have stopped working, yet the room temperature was lower than the scheduled temperature, it worked fine last night, I have a honeywell T4R, if I adjust it manually it works
hello, I bought honeywell, I watched your video on the internet, I did the same, but the house doesn't turn on even though it's cold, I wonder how many degrees it kicks in.
Ok my husband is OLD school and driving me nuts with this thermostat (Honeywell T4 Pro). PLEASE tell me how to cancel all programing and just manually put the air on what we want during the day and change it at night if we desire with the +/- buttons?? We have been using it this way for over a year (new home)....and one day it just started setting at 83 degrees at night, even if we try to lower it...it stays at 83 at night (not good for living in Florida). Please help? We just want to manually set it to what we want. No set Temps at certain times. Thanks!😊
I have followed your instruction (which were brill thank you) on how to program my T4 Thermostat but it is not saving my settings. i set my heating to come on at 8am and off at 10am then did other settings throughout the day then its saved but when i go back in it says heating will come on at 8am and off at 1pm please can you tell me what i am doing wrong
Mark to the rescue 🙌🏾. Detailed step by step setup for anyone to follow. Thank you 🙏🏾
Thank you so much- just had new boiler installed, after our old faithful Glow Worm was costing so much to run in difficult times.
The engineer told me if was a breeze to set up- but any technology in your late sixties is difficult to understand. You explained it so well, and we now mainly use the boiler in manual mode.
The instructions were awful- but your video explained everything in plain English- well done, it is so much appreciated !!
Thank you Mark. Even after reading the instruction booklet I could not figure how to set up the T4m. Your video was so informative and help full I could not have programmed the unit without it.
Hi Mark
My previous Honeywell thermostat died suddenly and your videos were really useful in deciding which replacement to buy and get installed and programmed in record time. Many thanks. Much appreciated!
You're a life saver!!!... Didn't have a clue how to sort it even with instructions.. finally a winter with heat again 😊
Thank you Mark. Clear and concise. The engineer handed to module to me and said I'll let you set your times and temp!
Thank you so much as your video practical demonstration was 10 times better than the actual manufacturers Manual.
Thanks..will watch again when I have calmed down. My installer didn’t really have a clue how to operate this……and it is NOT intuitive at all..told me heating companies ‘have spent millions’ making sure these thermostats are easy for the techno phobe older generation. All I can say is that they wasted their money! So much easier when my controls were a manual dial, and not digital …..pushing one button, then another…..ticks etc etc
Good video but there’s lots more you could cover. There is both optimum start, which I use, and delayed start, as well as optimum stop. These need to be selected in the installation menu. Also, these stats don’t work like conventional mechanical thermostats where the heating is run continuously until the set temperature as reached with the boiler cycling the burner on and off as flow temperature set on the boiler stat rises and falls. The T4 series runs the heating for quite a long period from initial start when the room is cold but, as the room temp rises closer to set point, from about 1.5C below, the T4 will cycle the heating on and off quite frequently. It can be a bit puzzling to see the room temperature at say, 17.5C but the heating switched off when the set point is 19C. It uses latent heat coming off the radiators with an occasional boost of hot water from the boiler to eventually get the room to set point but it doesn’t do it in the conventional way. The saving on gas is noticeable - my first CM927 which the T4 replaced paid for itself in a year with lower bills. Optimum start uses artificial intelligence to work out in the first few weeks of use how long the heating system takes to warm the room to set point and adjusts on time to suit - it may start an hour earlier than the set time on a very cold winter morning but only 5 or 10 minutes early in milder weather. Optimum stop will stop heating earlier than set if the stat calculates the room will remain at set point until the desired final off time off the day. I use 17C overnight so the house doesn’t cool too much and take too long to heat up again next morning.
So helpful. Avoided us aving to call an engineer after frustrating morning trying to solve connectivity issues, by describing the (30 second) fix which stupidly was not in the manufacturer's information. So grateful for the video
Thank You! it's taken me two years to try and sus this out, finding your video today has helped a lot. Subscribed!
Great video tutorial. Explained systematically.
What a brilliant video. So glad I found it because I was a bit baffled by the instruction manual which wasn't ever so helpful. THANK YOU!!
Perfect. Was wondering why there was no OFF option during the day, but turning the Temp down makes Perfect sense. Thank you!
Thank you Mark. I could'nt work out why I had identical T4's with different weekday settings.....and there it was. I am using the T4 to replace 4 seperate standard Honeywell manual zone thermostats controlling my underfloor heating. A great straightforward and understandable explanation.
Thank you so much! My son has been playing with the thermostat and my heating was coming on whenever it feels like it! I think I’ve sorted it now.
Thank you so much! This was very helpful! I recently moved into my flat and this was already installed with no instructions 😅 mine doesn’t have a battery though or that wireless thing but pretty much the same. It is stuck to the wall and if I remove it it resets 😊
This is SO helpful! I wasn't sure whether I needed the T4 or the T4R and within a couple of minutes you'd given me the answer through this video. Thank you again and best wishes for you and your channel.
Really useful, gave details such as overriding a programme for specified number of hours and holiday/away settings etc which were simply not mentioned in Honeywell's own manual. Likewise how to 'unhide' options like the Optimisation settings which are useful but not on the menu as received. Well done Mark!
Hi. I just bought and installed a T4R. For the moment, I am keeping it on Manual on a low temperature 15C as no one is leaving in the house. The temperature has settled since at this low temperature so now the ambient temperature is the same as the manually set temperature on the thermostat. So now comes the tricky part. It seems like the default heating behavior of the thermostat is somehow to preserve this temperature by briefly turning ON/OFF the heating (ON for 1-2 minutes and OFF for 5 minutes). Now this for me is pretty much a waste of gas as the house has underfloor heating and turning the heating ON for just 1-2 minutes is pretty much useless as the water in the system cannot be heated that fast. I looked over the "Additional Parameteres" in this video and the ones that make some sense are the 2 CR (heating cycles per hours) + 3 OT (Minimum ON time) although these are not great either. The thermostat I was familiar with was working on a very basic principle: you set the temperature, turns ON the heating until it reaches 0.2 - 0.5 degrees above the set temperature, turns OFF the heating and then waits for the ambient temperature to drop by 0.2 - 0.5 below the set temperature and the heating cycle resumes.
Is there a way to set this thermostat to work on the same principle?
It is worth mentioning that the house only has the gas boiler and heat distribuitors on each floor. There is no automation yet installed to control the heating on each room yet.
Thank you so much Mark. Your video is brilliant and took the headache out of programming my new T4R.
Thank you so much for this video I’ve been trying to do this with the guide book but got no where it
Great video - super helpful. Thanks very much
However I have a question please on the optimisation option on the 'special menu' - how does the optimisation option work please? I understand that the thermostat will assess the current room temperature and the next time/target temperature and then switch the boiler on/off before that target time in order for the temperature to hit the target at that time?
If that's the case then you have say 7-9am at target temp of 21 degrees but then you leave the house for work at 9am so you want the target temp to fall to say 10 degrees at 9am......how does the thermostat decide on priorities? Does it turn the boiler off at say 8:30 so that the room cools down to 10 degrees at 9am or does it prioritise the 21 degree temp until 9am the turn off to try to get the temperature down to 10 degrees? If it does turn the boiler off before 9am but you definitely want the room to stay at 21 degrees until 9am how do you get round this issue (other than turning off the optimisation option!)
I may have opened a can of worms here so you may ignore the question but I'm intrigued as I want to use this feature as I plan my programming
Many thanks again for staying up late to make this video!
Mark
Thank you so much Mark you are a topman how you explain the things,how professional you are.
Thank you again for your valuable time.
Hi Mark great video, we've just had one of these installed in our Quaker meeting house, the engineer didn't know how to programme it! So I'm so pleased to watch this. My question is: can we keep this in a cupboard to stop other users of the hall tampering with it or should we just lock it as you've shown?
Thankyou Mark I never would have sussed out how to “Bind” room stat with controller.small donation sent.
Larry
Excellent video. Very helpful. Thank you!
Thanks for this useful video.
Excellent . I had been looking for a copy button . Now I know how to get the same every day .
Excellently explained all the features, very helpful. Thank you 😊
Thanks this video has saved me numerous times, keep the videos coming would like to see more from you
Try get one done every two weeks. It is hard.
Thanks, Mark, for ALL your crystal clear videos. A question: is it possible to bind the T4R unit with the receiver of a CM927?
Best regards, Eric
I noticed your start time of P1 differs from the end time of P6, without the ability to change the latter since the systems jumps directly to the temperature setting. I have the same problem here. There are gaps or overlap in the program. Any idea how to solve this?
This is fantastic help for the technically challenged like myself. I will be following with eager interest once my new Vaillant Ecotec Plus 826 is installed. Superb channel, thanks Mark.
Thank you for this video, very easy to follow
Thanks, my friend. The instruction booklet wasn’t actually accurate for my one and this helped me sort it - thanks.
Thanks a lot Mike brilliant tutorial Te Honeywell instructions failed to mention several features you covered. Most useful
They are a pain, you've made it so easy to work now
great video, although by today's standards is there not an app you can use to control and program the heating? No need to answer I found that you need the T6 to be connected.
Well done Mark! the best explained video I have ever watched!!!
Thank you for a really useful video that I have saved in my favourites as I am sure to need it again. The thermostat is poorly designed and over complicated. Like most things that are improved - they never really are. Even my heating engineer found it diffficult. God help anyone who doesn't have you tube as the instruction book is rubbish and doesn't even have the parameters included. I had to google just how to take it back to factory settings.
Very helpful video thank you. I got stuck with the Auto and Manual option but I figured it out.
Very straight forward and helpful Thank you very much. The plumbers left my wife completely bedazzled with their instructions!
Very useful but why does night setting not allow the off time to be changed from 6.30am. It overrides the on temperature we want for 6am in the morning. I see it jumped over the night of set time, which it did for me. We will have to manually override every morning.
I know what you mean, the last part end time, will always be the first part start time, so for example your first part begins at 7am. Then the final part is restricted to 7am, you can't set the last part (being night time) as let's say 11pm - 2am which is kinda annoying, it can only be 11pm to 7am unless someone manually turns it off
A really helpful and informative video which helped me sort out the heating parameters for daytime when I will be working. Saved for future reference. Thank you
These things are such a hassle. I have the T4 Pro which seems to have '90s tech. I can't believe they'd choose such an obtuse thing as their default. They must have gotten a discount. I wish they'd let me pick something better. I set it for 8am wakeup, and the heat starts blazing at 630. Meanwhile I have "away" at 10, yet for some reason it drops the temp in between the two. I have always wanted a programmable thermostat, but I thought it would make sense and not be such a hassle. Now I just turned the programming off and do it manually like it's 1980. I am filled with rage and no one to rage at.
Exactly! Just said the same thing! 25 years ago as a kid I just turned it on. Now I'm babysitting in this big house and it's freezing here but I don't see an "on" function! It's so irritating! It's been 2 hours watching useless videos. Over complicated useless crap. At least I know what not to buy for my house!
This is so true. T4 is shit
990
L
😊😊😊😊
Hi Mark. Great video. Would you recommend the T3R or T4R to replace a CM67ng wireless thermostat? Thanks. Dave
Thank Youuu!!! Just moved into a new place as was so confused. Your video helped so much!
Thank you so much. This demonstration made it easy for me to install the receiver and program the thermostat. Great delivery and at a pace that was easy to follow. Great work 👏🏽 👍🏽
Hi Mark, great video which explains it all, even though we have the T4M. One question, we also have our hot tap water from the boiler. Now when we open the hot water tap the "flame" symbol in the thermostat also comes on, is this supposed to be like this? I think it is but I cannot find any answer on this online (so far)
Thank you. That was brilliant. Excellent explanations made the instructions easy.
Really handy, just moved into a place with this thing installed.
Excellent video .really well done .we are old and you made this so sime to understand.again thank you from sunny Norfolk uk
Is there a way to boost it for a couple of hours without having the programme mode engaged? I don’t want the heating on, but do want to just boost it for an hour when I have a shower. Thank you!
Hi Mark - another question. Is there any way to set the heating to come on, reach a temperature and then switch off completely rather than trying to maintain (trying to work out an economical way of using the heating after the bill changes).
Can this be set to individual days rather than just Mon - Fri?
Thank you Mark!!!! for me special the Manual modus and the parameters. Great.
Thank you so much. This was so easy to follow, compared to some set ups I have seen for the Honeywell system. Very informative. 👍👍👍👍👍👍
Hi hun did you struggle with the guide book like me
Hello Mr. Ballard
What thermostat is a direct replacement for my Honeywell CM 901 ? Without having to adjust the wiring . Many thanks
Great video, however my honeywell remote which looks like this one but doesn't have honeywell home on the front, just honeywell, when the suitcase is on the screen I can't get rid of it. When it's on the screen and I go back to the menu, the suitcase is not there for me to scroll across to run off. Any ideas please? thank you
Excellent video helped my wife a lot
👍. Nice to get my first feed back with good positive comment. Thanks, glad it helped.
Thank you so much. I’m keeping this video for future reference.
Me too,
Solved my heating is on all night because it was in MAN setting! Thanks
I noticed last night that the heating has been coming on, and staying on, all night. I'd set it down to 5C. It won't let me reduce it any lower? I don't want it coming on at all during the night. And I don't want to have to manually turn it off every night and remember to turn it back on in the morning before everyone gets up.
Thank you Mark !!! Easy explanation and simple to use now.
That was great. Thank you.
Does this new T4R function/communicate with the old receiver-unit of the previous model CMS927B1019 or do I have to buy the full package incl. new CV-receiver?
What's the difference between on/off or modulation thermostat?
(in combi with Vaillant CV)
hI Mark, just got a new one of these, can I set it up just for on and off manually as required rather than programing it as some days we want it on and sometimes not
Oh Mark, I'm glad I decided to search on TH-cam
I accidentally dropped my T4 Thermostat onto a hard floor....I now do not have any heating
The receiver is flashing Red....the Flame/Heat button is not lit up with a Green Light
So in watching this video....can I safely go ahead and press that heating button, even though the receiver is flashing Red??
Any advice would be greatly appreciated!
Any ideas why my boiler fires up intermittently when the thermostat is already at the temperature? Wondering if it's just keeping it at the temp, but I would think the temp on the device should drop for that to happen...
Merci pour cette vidéo démo bien utile. Très bonnes explications bien claires.
Thank you so much for this. I actually thought my device had a fault as I could not figure out why it wouldn't store the "off" tmes when programming. You explained clearly why this is the case and now I've got it properly programmed. The instruction book is not great, but your excellent video made the whole thing make sense.
Very useful video as I thought you could set it like my old Honeywell but this explains the difference etc. Great video better then the manual. Well done Mark
Thank you explained it clearly - have shared the link with my guy that installed.
Very very helpful video THANK YOU
That’s absolutely brilliant Mark!!! Thank you!!!
Thanks for vid great help. Mine is similar to this but its not wireless, lost my manual, if in the middle of night I need to run down to turn heating on just for 1hour can I do it with this, as I can't find how to, and I don't really want to be messing around with programs while being half a sleep and just want it on for 1 hr. Thanks
Hi there, Your video showed fitting the thermostat sender whilst mentioning you was adding the wires to the right side from the boiler later. My boiler is downstairs and the thermostat is upstairs on the landing which is silly as it never gets hot enough up there to activate the thermostat whilst downstairs is like an oven. So I was wanting the sender upstairs and the receiver controller downstairs. So can the sender NOT have the wires from the boiler to the right side i.e. no boiler directly connected. many thanks
Fantastic instructions.
Great job.
At 09:30, it looks like the current time was set at 01:45 A.M. There didn't seem to be an option to change to p.m.. I suspect Mark should have continued pressing + until p.m. came up; or better still, used the 24 hour clock.
Hi Mark, would this thermostat compatible for radiators+floor heating on my ground floor?
Hey Mark can you use this for underfloor heating?
hi thank you is it normal for the boiler/pump to be on for most of the time in the heating period target is 20 rooms is 20 but the boiler is still going it will turn off when the lower target than room temperature new boiler this year thank you for any advice help
Thankyou mark, you helped a lot with this video
Thank you 4 your help it was very helpful
If you just want to use it in manual mode have you got do you set that up please
This is for the Honeywell T4 'Home' thermostat. The Honeywell Conventional 7-Day Programmable Thermostat (which we have...) is different.
Please can someone help…. This might sound like a stupid question but which is the FIRST day that counts in the away mode setting? Is it the day you set it finishing at midnight or is it the first whole day following the day you set it?
This is a great video. Thank you Mark.
Hi mate really good video thanks, can you explain what the heating cycle rare means it would be very helpful cheers Marco
Is it possible to to switch the heating on and off without the controller whilst waiting for a replacement?
Can you help, my scheduler didn't come on this morning and appears to have stopped working, yet the room temperature was lower than the scheduled temperature, it worked fine last night, I have a honeywell T4R, if I adjust it manually it works
Hello i have the honeywell t4r can you please make a video how to set it only on auto with you the programs
Brilliant! Easy to follow instructions, thank you! x
Excellent video, thanks very much for the detailed explanation especially about what temperature settings to use at different times of the day.
hello, I bought honeywell, I watched your video on the internet, I did the same, but the house doesn't turn on even though it's cold, I wonder how many degrees it kicks in.
Ok my husband is OLD school and driving me nuts with this thermostat (Honeywell T4 Pro). PLEASE tell me how to cancel all programing and just manually put the air on what we want during the day and change it at night if we desire with the +/- buttons?? We have been using it this way for over a year (new home)....and one day it just started setting at 83 degrees at night, even if we try to lower it...it stays at 83 at night (not good for living in Florida). Please help? We just want to manually set it to what we want. No set Temps at certain times. Thanks!😊
Is it possible to change the temperature from Centigrade to Fahrenheit
Thank you, your amazing. I'm all sorted thank you.
I have followed your instruction (which were brill thank you) on how to program my T4 Thermostat but it is not saving my settings. i set my heating to come on at 8am and off at 10am then did other settings throughout the day then its saved but when i go back in it says heating will come on at 8am and off at 1pm please can you tell me what i am doing wrong