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Another preventative maintenance item for your home AC #7633266 10/15/19 05:47 PM
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Texas Dan Offline OP
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Replace the contactor in your outside (condenser) units after they get a lot of years on them. Otherwise they might hang up in the closed position and cause the unit to freeze up.

No need to ask me why I know.

Less than $20 from Amazon.

And keep a spare just in case, but only a DIY job for those who have experience working with 240-volt systems.

Cutler-Hammer 230-volt Contactor

Last edited by Texas Dan; 10/15/19 05:55 PM.

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Re: Another preventative maintenance item for your home AC [Re: Texas Dan] #7633555 10/15/19 10:45 PM
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You can buy them at Lowe's too. I replaced mine this last spring.


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Re: Another preventative maintenance item for your home AC [Re: Texas Dan] #7633622 10/16/19 12:11 AM
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bill oxner Offline
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I never replaced mine in my entire life. I don't even know what it is.


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Re: Another preventative maintenance item for your home AC [Re: Texas Dan] #7633687 10/16/19 01:16 AM
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dern it, I'm with Uncle Bill. Time for my fall preventative service. I'll ask about it.


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Re: Another preventative maintenance item for your home AC [Re: bill oxner] #7633689 10/16/19 01:18 AM
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Texas Dan Offline OP
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Originally Posted by bill oxner
I never replaced mine in my entire life. I don't even know what it is.


I replaced the contactor on one of my two units a few years back but just let this one slide. Most of the time they fail open so the unit never turns on as it should, so I was waiting for that to happen. I got 20 years out of it before it failed closed and left the compressor running.

Yes, I know my units are running on borrowed time and will plan to get bids for a new system. Hopefully, I'll find some end-of-season deals that will save me a few bucks.


"Some people will never like you because your spirit irritates their demons."
Re: Another preventative maintenance item for your home AC [Re: Texas Dan] #7635167 10/17/19 04:16 PM
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Ive replaced a few. never had one stick closed, I would bet the vast majority of them fail because they get ants in them and don't make good contact, have replaced several due to that.


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Re: Another preventative maintenance item for your home AC [Re: Texas Dan] #7642898 10/26/19 05:29 PM
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I go thru one every couple years thanks to fire ants....I have three AC units...usually have to clean the ants out of each one at least once a year.


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Originally Posted by beaversnipe
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Re: Another preventative maintenance item for your home AC [Re: SnakeWrangler] #7642971 10/26/19 07:23 PM
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Originally Posted by SnakeWrangler
I go thru one every couple years thanks to fire ants....I have three AC units...usually have to clean the ants out of each one at least once a year.


I put treated ear tags(for cattle) in mine and it keeps all the ants and bugs out.


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Re: Another preventative maintenance item for your home AC [Re: snake oil] #7643044 10/26/19 08:59 PM
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Originally Posted by snake oil
Originally Posted by SnakeWrangler
I go thru one every couple years thanks to fire ants....I have three AC units...usually have to clean the ants out of each one at least once a year.


I put treated ear tags(for cattle) in mine and it keeps all the ants and bugs out.


Great idea....thanks! AMDRO and Deamon don’t seem to work


Originally Posted by Sneaky
I believe in science and I’m an insufferable dickhead
Originally Posted by beaversnipe
Actually, BBC is pretty damn good

"You Cannot Simultaneously Be Politically Correct And Intellectually Honest!"
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