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How to Troubleshoot Transformer Failure & Diagnose Bad Contactor on Central AC System 

Mikey Pipes - Pipe Doctor Plumbing & Heating & Air
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Central Air Conditioning A/C System is DEAD! Only the thermostat goes CLICK when you turn it on! How to Troubleshoot and Diagnose a bad contactor which burnt out the primary/secondary 24 volt transformer. Step by Step.
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14 май 2023

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Комментарии : 37   
@eddiew.6485
@eddiew.6485 Год назад
The true meaning of “Diagnosis and Repair”!
@scottvolage1752
@scottvolage1752 Год назад
Testing not guessing. Another fine job Mike. Make the trades great again.
@billycarr7446
@billycarr7446 2 месяца назад
I am mechanically inclined and love to DIY everything. That said I am not HVAC savvy, til a few days ago when I turned on the AC for the 1st time of the seasom when it smoked something within a minute. Much research and a parts cannon later I have a much better grasp of a low voltage circuit. appx $200 in parts from Amazon later I am sitting in a cool dry house and I did it! These vids are awesome for us neophytes. My ex wife just spent $800 with a service tech getting hers back up. :-) Yeah, I know, I still have some anger issues. I won by $600. The problem ended up being son #1 was weed eating around the house a few days prior. He snagged a skinny lil wire at the condenser unit and it looked OK. 3 feet back under the wood box guard the 2 wires were deteriorated and touching each other. I ohmed across these 2 wires up at the contactor coil (wires not connected) and got an open so thought the wires were fine. Always visually inspect everything! Would have saved me the $200 but now I have some spare parts for next time and I got some not quite instant gratification. Service techs gotta make a living too but my nature is DIY and spend that money on toys.
@javajetson257
@javajetson257 14 дней назад
Ok. This dude is cool.
@tckr4883
@tckr4883 Год назад
If that low voltage terminal block was dangling I’d say that was the issue….ten seconds later I was wrong. Nice job. Did a nice Bosch yesterday…BOVA-60…when you coming to Florida? I make my maintenance tech watch your videos for homework.
@tedlahm5740
@tedlahm5740 Год назад
Very enjoyable. Very informative.
@gordonkaufert5013
@gordonkaufert5013 Год назад
Fine job Mike 👍
@ijmj87beasmodemartin24
@ijmj87beasmodemartin24 28 дней назад
Thank you sr you save me $ time. I'm a home owner in New jersey here everything cost so much this guy came to my house saying yes to fix your problem we taking about 1,200$ I was like nope thank you 7/2/24
@scottmaz4063
@scottmaz4063 Год назад
Good repair
@kat2641
@kat2641 Год назад
Lol you got to love them cheep disconnect boxes 😂😂😂 I was honestly thinking short in T stat wire or a dead short on the contractor to ground…. Great troubleshooting.!!! I always figured a great troubleshooter was worth more to me than a great installer.
@Knoxxy91
@Knoxxy91 Год назад
Awesome video!
@danielrandolph9170
@danielrandolph9170 Год назад
Cool ! 👍
@cobrajoe2001
@cobrajoe2001 5 месяцев назад
Thank you so much the info
@PipeDoctor
@PipeDoctor 5 месяцев назад
You are so welcome!
@louisviciedo
@louisviciedo 10 дней назад
I just moved into a new home and want to instal an ecobee. I went to the transformer and only have 1 segmenet of 24v through the RED secondary, the GREEN secondary is grounded and doesnt have constant 24v. The GREEN wire is connected to my BLUE C wire. the result is that Im not getting constant power to my thermostat C wire. Is this a wiring problem?
@zacharypalczynski8450
@zacharypalczynski8450 Год назад
My guy , Mikey fuxkn pipes !!
@davidlampe4153
@davidlampe4153 Год назад
Nice video thank you but I’m not understanding how it works. I’m not understanding what the sequence is but I’m going to watch it a few times and maybe it will be clear.
@Samlol23_drrich
@Samlol23_drrich Год назад
Good job. Fyi, a Shunt goes across without interruption. A stunt is what Evil Kinevil used to do. Not being a dick. I would want someone to tell me
@pitt1108
@pitt1108 Год назад
When did wago fix the fatal fault in their design. (Contact only on 2 points of wire)
@flastname560
@flastname560 Год назад
How do you like those Wagu connectors
@chuckquinn8026
@chuckquinn8026 Год назад
Love my new Wago butt connectors! What is the advantage of single pole contactor vs double pole?
@chuckquinn8026
@chuckquinn8026 Год назад
@@PipeDoctor is there a reason you would want/need that?
@chuckquinn8026
@chuckquinn8026 Год назад
@@PipeDoctor thanks Mikey. Just never heard it explained before
@mantorras7752
@mantorras7752 Год назад
Mikey... how do you feel about the Bryant brand?
@zeljkoprezimee4439
@zeljkoprezimee4439 Год назад
I would put breaker in 24v line to protect transformer if it isnt there..
@dburks1273
@dburks1273 Год назад
Bad contactor or shorted low voltage wire
@xlostf8x348
@xlostf8x348 Год назад
A 50Va Transformer? I honestly expected a 75Va out of a master plumber. Zone heads baby lol
@caflatt7436
@caflatt7436 Год назад
I take it that the system had no fuse to protect transformer why not add one. Professional touch. For next guy, maybe you
@Theoldchum
@Theoldchum Год назад
Shunt, not stunt!
@Theoldchum
@Theoldchum Год назад
@@PipeDoctor No charge, LOL
@mikehouser5430
@mikehouser5430 Год назад
1st
@christopherchance4860
@christopherchance4860 Год назад
Bud Lights VP of marketing killed the transformer
@videoforgeeks
@videoforgeeks Год назад
I think "radio" killed the transformer side...radio killed the transformer side...lol
@videoforgeeks
@videoforgeeks Год назад
@@PipeDoctor ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-W8r-tXRLazs.html
@videoforgeeks
@videoforgeeks Год назад
The "first" video ever played on MTV back in the day...I thought of it when you said what killed the transformer....Have a good one! 🙂
@eastcoast186
@eastcoast186 Год назад
WTF does:) this mean in English
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