Author Topic: A/C won't shut off  (Read 7899 times)

Offline redtail

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A/C won't shut off
« on: June 03, 2011, 10:33:57 PM »
Have two A/C units one primary come on, and the second one come either by lower the temp or if the first unit is not maintaining the temp in the house. Also, I can switch the the units so either one can be the primary. With that said, I try raise the temp gauge to the primary unit would shut off, and it Didn't. I try using switch to shut off the unit and it didn't. So next step switch the second unit to be the primary, and shut off the circuit breaker on the first unit, and everything is working.

I am guessing that the relay in the first unit not working. My question the relay something I can replace? Not sure where it is on the A/C unit. I don't remember what brand it is at the moment. I will go out and look in the morning.

Thanks 

Offline redtail

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Re: A/C won't shut off
« Reply #1 on: June 04, 2011, 01:39:09 AM »
Model Goodman CM36-1E (B OR 8) can't read the last digit.

Offline JWWebster

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Re: A/C won't shut off
« Reply #2 on: June 04, 2011, 09:57:26 AM »
You sayin the outside unit stays on or the whole unit stays on when you turn it off?
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Offline redtail

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Re: A/C won't shut off
« Reply #3 on: June 04, 2011, 10:43:22 AM »
The whole unit is running. (fan, compresser, etc)

Offline JWWebster

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Re: A/C won't shut off
« Reply #4 on: June 04, 2011, 12:48:54 PM »
Must be in the thermostat. Does the unit run with the thermostat disconnected? That could be a relay on the board.
May the hinges of our friendship
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About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair and other general BS I love to post. The letter sends me email.
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Offline redtail

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Re: A/C won't shut off
« Reply #5 on: June 04, 2011, 03:14:25 PM »
The other unit works like normal. When the temp in the house is reach it shut off.

Offline JWWebster

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Re: A/C won't shut off
« Reply #6 on: June 04, 2011, 06:07:43 PM »
Take some photos of the unit, we can't look up goodman online
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About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair and other general BS I love to post. The letter sends me email.
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Offline redtail

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Re: A/C won't shut off
« Reply #7 on: June 05, 2011, 08:22:32 AM »
here are few pictures

Offline JWWebster

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Re: A/C won't shut off
« Reply #8 on: June 05, 2011, 08:40:37 AM »
To the right of the capacitors is what they call a contactor. If the contactors points are fried together the only way to turn the unit off is by turning the breaker off.
I do not recommend a novice replacing this one. You better get a guy out there to look at it.
A new contactor won't even look that one.
« Last Edit: June 05, 2011, 08:43:09 AM by JWWebster »
May the hinges of our friendship
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About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair and other general BS I love to post. The letter sends me email.
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Offline jumptrout51

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Re: A/C won't shut off
« Reply #9 on: June 05, 2011, 11:35:25 AM »
No biggie,replace the contactor. Sooner or later all contactors go out or get stuck or get ants in them and won't conduct.
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Last post August 11, 2009, 06:10:09 PM
by bl8tant