Finding AND Repairing Low Voltage Shorts On Central A/C System, EASILY!

In this video we take a look at a Carrier Heat Pump that keeps blowing its low voltage control fuse!
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[@agostinodibella9939]

Nice fix! This is why I put a 2 amp fuse in series with the contactor coil on my home AC. I figured it should blow and leave the main 3 amp fuse intact and make it easier to isolate the problem.

[@JeffsHVACAdventures]

Good idea

[@justinmeans7375]

Definitely a great idea

[@emeliojuarez3617]

Great job troubleshooting and admitting you made a mistake. Most videos I see, no one ever makes a mistake, and im like wow no one ever admits something went wrong. Great job.

[@JeffsHVACAdventures]

Thanks

[@chrissipple1018]

Contactor had a bad armature and freeze stats use to be used on systems that were not designed properly. Try a Short Pro Tool you do not have to Wait until the Poppers pop it shows up right away. Good video

[@zekenzy6486]

Great video. Thank you for sharing

[@TomLawson05]

Good job troubleshooting and repair thanks for the video

[@JeffsHVACAdventures]

Thanks

[@woodystokes1543]

Nice work 😊

[@JeffsHVACAdventures]

Thanks brother.

[@ATAKace1]

its interesting how often these carrier contactors go bad, had to change some out on units that only a few years old.

[@Ogtonyg]

Maybe this is stupid approach, but I don't even pull the popper out until I look for rubbing wires/check the contactor. If I don't see anything obvious then I'll pull it out.

[@ATAKace1]

@@Ogtonyg I tend to do the same. I don't carry my popper on me usually, so I just end up ohming things out quickly before I run to the van to grab it.

[@paulierluva]

Great job jeff and troubleshooting

[@JeffsHVACAdventures]

Thanks

[@martinheatingcoolingmartin4693]

Never mistakes just happy accidents, lol

[@JeffsHVACAdventures]

Well said! Lol

[@butlerstouchHVAC]

🔥🔥

[@rowdybroomstick6394]

I was told to remove all wires from the board inside the air handler and add one wire back at a time until the resettable fuse trips.

[@JeffsHVACAdventures]

Not a bad way to do it either.

[@martinheatingcoolingmartin4693]

Hey, great work man. Mike, quick question to you is do you prefer that compact fieldpiece meter over the larger one or do you have both? I bought the compact one but I’m debating returning it to get the larger one that swivels.

[@martinheatingcoolingmartin4693]

Scratch the word Mike, I was voice texting somehow that ended up there

[@JeffsHVACAdventures]

I’ve never actually used the larger one, I think it does have some other options but nothing I really use on a daily basis. The smaller SC440 works fine for what I do.

[@Paul-IE-Repairs]

looks like the installer left his vape pen up there too

[@JeffsHVACAdventures]

✋Guilty! That thing goes everywhere with me. Lol

[@Buy_YT_Views_94]

Thumbs up if you agree!

[@JeffsHVACAdventures]

🤔

[@gtpforever]

What's a 1 and a half pull? Lol

[@JeffsHVACAdventures]

It’s really just a 1 poll with a shunt on the other side. Not sure why they mark it a 1.5 poll on the box