Just wanna says thanks for posting this vid, changed this pump today for a customer. Had no clue to start with but I remembered this vid..help me greatly...A BIG THANK YOU!
Great video...I don’t think there is any training out there for new gas eng that show this amount of details...so a BIG thank you for taking the time to show all this as when we Gas eng are on jobs we just want to get on with it with no bother.
@@HeatingGeek went well I slackened the return and turned it, made accessing the pump easier also connected the u shaped pipe to pump first and then to the storage tank, awkward job no doubt about it but your vid defo helped, also done the dip tube, it was corroded and split, might as well do it as was drained down. saw that off one of the other vids you did, what your vids do is give confidence to do the job always better when someone shows you the way again many thanks 👍👍
Had exactly the same boiler today. Heating fine but no not water. Would the shunt pump not working cause no not water even if the hit water storage part of the boiler was switched off ?? Brilliant video by the way. You certainly have patience.
Hi mate, i went to look at this boiler in a customers house tonight after they rang to say they had just a trickle on the hot water on every outlet. At first i was thinking a blocked secondary heat exchanger but this was until i found that these boilers have a storage tank for hot water. I'm going back tomorrow so what do you think causes this apart from a blockage ? I'm second guessing now after seeing that they have a lot of problems with air locks, could that be a cause ?
Hi mate yeah same here but apparently I did speak to technical help and the Itza a display so if it’s not you know how to diagnose the PCB is the low voltage side of the boat that could be a faulty and has a different sort of the checks for that and I’m sure you’re very familiar with that better if not the boat is the display that’s what the technical help I saying just a thought let you know
Did you watch the video? I have 2 on this issue. Watch them and I explain. Also watch the 937 dip tube video here. th-cam.com/video/Up6mO4YHgRg/w-d-xo.html It will explain alot.
Really informative video. Do you tend to keep all the manufacturer specific different size o rings on the van, or would you recommend keeping a universal selection kit of some sort? Im always slightly wary of taking a joint apart unless i know i have the correct manufacturers o ring to replace it with. Thanks
I Have loads of 'o' rings on the van. I order them when ever I can. Im not worried about taking any joint apart because of this, although I used to be. Good question!! Sorry I didn't see this before
This model of the Vaillant range is a nightmare to work on, very bad design for the engineer. Try changing the dhw flow switch you’ll see what I mean....not good
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Just wanna says thanks for posting this vid, changed this pump today for a customer. Had no clue to start with but I remembered this vid..help me greatly...A BIG THANK YOU!
No problem. I'm glad it helped. :-)
Great video...I don’t think there is any training out there for new gas eng that show this amount of details...so a BIG thank you for taking the time to show all this as when we Gas eng are on jobs we just want to get on with it with no bother.
Thanks for watching. :-)
Thanks for this, I have one to change for the first time and now feel much more confident about doing the job, your a fabulous teacher.
I didn't see your comment before. How did it go?
Great videos, love the way you explain everything you're doing even small details, no one else does this as well as you.
Thanks. Another one uploading now. :-)
watched few times and try to remember everything what you say, so great. like it. stay safe and carry on.
Thanks. This is an old video but shows how hard draining one of these boilers is. :-)
Top video - many thanks. Please do more boiler repairs and fault finding. You explanations are really clear.
Thanks for your comments. I really appreciate it. I will try to do more Videos but its very busy at work and I don't have time on the jobs.
Vailant don't give much thought to service engineers. Another masterclass of a video. You done great there with that monstrosity of a thing.👍
I like them!!!! Weird I know...
My God you are patient Mr Geek.
God job.
Lance.
Thanks. I don't mind waiting If it means Im not going to flood someones house! :-)
Hi did you do a video on how you can know this shunt pump is shot simply by feeling pipes? Cannot find it. Thanks
I did, its part of another video though. Maybe the dip tube replacement? Im not sure.
Top mam I glad I found your video. Can you say where to source those seals please. Look like I have same issue
get the seal from parts center. Use parts arena on parts center website to get part number.
@@HeatingGeek thank you
FYI the seal that comes appears to be too small. Its not :-)
Very educational - Thank you for posting it up.👍
Thanks. That was the worst one I ever did. Usually a lot easer to drain.
`Thanks :-)
just done this, now i have no hot water, the return pipe is staying cold, but the pump was working before i changed the o ring, any ideas?
Excellent video. Very well explained. Thank you
Nice one. Thanks :-)
Where are you based?
@@RayMondElec North London/Hertfordshire.
Very Good videos, steady engineer
Thank you very much!
How long did this job take you start to finish?
I can usually do them in 1.5 hours. Allow 3 the first time you do it.
Got one today so so glad to see this vid 👌top job
How did it go??? :-) hope this video helped.
@@HeatingGeek went well I slackened the return and turned it, made accessing the pump easier also connected the u shaped pipe to pump first and then to the storage tank, awkward job no doubt about it but your vid defo helped, also done the dip tube, it was corroded and split, might as well do it as was drained down. saw that off one of the other vids you did, what your vids do is give confidence to do the job always better when someone shows you the way again many thanks 👍👍
@@andymcgill357 That's what it's all about. :-) Glad it helped. :-)
Had exactly the same boiler today. Heating fine but no not water. Would the shunt pump not working cause no not water even if the hit water storage part of the boiler was switched off ??
Brilliant video by the way. You certainly have patience.
Not always. Its a weird system so can work sometimes not others.
Hi mate, i went to look at this boiler in a customers house tonight after they rang to say they had just a trickle on the hot water on every outlet. At first i was thinking a blocked secondary heat exchanger but this was until i found that these boilers have a storage tank for hot water. I'm going back tomorrow so what do you think causes this apart from a blockage ? I'm second guessing now after seeing that they have a lot of problems with air locks, could that be a cause ?
Sorry I didn't reply. The dip tube is probably the problem. I have a video on them too. :-)
THANKS boss
excellent stuff thanks
Thanks. That one took a lot of time!!
Hi mate yeah same here but apparently I did speak to technical help and the Itza a display so if it’s not you know how to diagnose the PCB is the low voltage side of the boat that could be a faulty and has a different sort of the checks for that and I’m sure you’re very familiar with that better if not the boat is the display that’s what the technical help I saying just a thought let you know
Thanks. The test for the low voltage is on my boiler videos when the fan fails. I test 7,8, and 9 for 22-24 volts.
Can't seem to get hold of the o rings for the small pipe
What, a shortage? Or you don't know the part no?
Nice one mate
No Problem. :-)
Very informative video.
If the tank takes more than ten mins to heat up and throws an F81/F91 code. What could be the issue?
Did you watch the video? I have 2 on this issue. Watch them and I explain. Also watch the 937 dip tube video here. th-cam.com/video/Up6mO4YHgRg/w-d-xo.html It will explain alot.
Great video. What kind of hose pipe are you using to drain boiler?
Drain down hose amzn.to/2Pqh7K3 This is the best price I could find. I paid a lot more!!!
Do you carry a shunt pump on your van?
No not usually. If im going to a 937 with issues I will make sure I have one on.
Hi mate I was wondering if I can get your help on the 999 and -13 as an hour ago the eco-tech plus much pre-she ate it mate
What?
if it is easy to connect electric wires, when shunt pump is changed
top job
Sorry I meant costumer reported on the display is showing 999 with-13 (
ecotec plus Boiler)in sequence
Is it the board . I didn’t attend yet ..
No idea. Never had that fault.
Sorry
Well done guiz
Thanks ;-)
Really informative video. Do you tend to keep all the manufacturer specific different size o rings on the van, or would you recommend keeping a universal selection kit of some sort? Im always slightly wary of taking a joint apart unless i know i have the correct manufacturers o ring to replace it with.
Thanks
I Have loads of 'o' rings on the van. I order them when ever I can. Im not worried about taking any joint apart because of this, although I used to be. Good question!! Sorry I didn't see this before
The groove in the copper pipe that connects to the shunt pump seems too wide for the manufacturers o ring had to use two get it to seal
This is a pain in the ass to drain. Skip to about 7min to see pump removal.
This model of the Vaillant range is a nightmare to work on, very bad design for the engineer. Try changing the dhw flow switch you’ll see what I mean....not good
I have done a few!!! Im more than happy to replace any part on this boiler (only because I have done them all before more than once!!)
Looks a blimin mission..vaillant could do better
There not to bad. Can do them in about 1.5 hours with all safety checks etc
HeatingGeek im a heating engineer havent come across this problem on these
You will get one sooner or later. Done about 5 this year. I cover a very large area though.
HeatingGeek fair enough mate.informative video
Vaillant not gut verry very bad
What a horrible repair, not your work, just this job in general its such bad design.
I have done loads of these now and don't mind them. Once you have done a few I think you will agree. :-)