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Old 08-01-2011, 12:02 AM   #1
[Alex]
 
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AC Unit Relay/Controller Board Fried - HELP!!


Hey everyone. This one is tricky.. any help would be greatly appreciated!

My home AC unit died about a month ago. It looks like a mouse bit into the electronics and got fried.. while also frying the relay/controller/circuit board. The system was made by a company called Vent-Aire Systems (Model ECS45M COMFORT SYSTEM). They are no longer in business & I can't find parts anywhere.

The only number I can make off the relay/controller board is CB18. It has relays attached to it and a 6 pin & 14 pin connectors on one end. Half of the board is fried and so are 2 of the relays. I believe it's 110V.

Is there anyway to make a custom board? Are there generic boards out there anywhere? I have no idea where to look or how to get this fixed. I've called a few shops in my area and have gotten no help.

--Alex


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Last edited by beenthere; 08-01-2011 at 05:23 AM. Reason: removed link.
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Old 08-01-2011, 05:25 AM   #2
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AC Unit Relay/Controller Board Fried - HELP!!


I removed your link, No free advertising Alex.

Post pic of unit, it may have be a rebadged unit made by one of the larger companies.

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Old 08-01-2011, 07:10 AM   #3
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AC Unit Relay/Controller Board Fried - HELP!!


try these brands eye ball it the brand you have is generic so it has to be used by others http://www.bestbuyheatingandaircondi...cuitboards.htm
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Old 08-01-2011, 11:08 AM   #4
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AC Unit Relay/Controller Board Fried - HELP!!


Quote:
Originally Posted by beenthere View Post
I removed your link, No free advertising Alex.

Post pic of unit, it may have be a rebadged unit made by one of the larger companies.
Whoops - sorry!

I'll try to get pics up later tonight. Thanks.
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Old 08-02-2011, 12:22 AM   #5
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AC Unit Relay/Controller Board Fried - HELP!!


I believe this powered a Magnetek motor, but (of course) they sold their small electric motor line to A. O. Smith. I think that this motor is A. O. Smith Stock #754.

A control board needs to control it plus kick on the circulatory pump for the domestic hot water heater that supplies the radiant coil for the back-up heat.

Here are some pics of the fried relay controller board:

(biggles - I looked through most of those manufacturers pictures, and can't match this up to any of them.)










Last edited by alxsti; 08-02-2011 at 12:27 AM.
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Old 08-03-2011, 10:44 PM   #6
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AC Unit Relay/Controller Board Fried - HELP!!


Any ideas? I talked to a local HVAC parts warehouse today and got no help. They suggested going to a computer place and have a custom board made.
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Old 08-03-2011, 11:08 PM   #7
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AC Unit Relay/Controller Board Fried - HELP!!


Anyone with basic knowledge in electronics can make the PCB board .... but trying to find the components first

http://www.radioshack.com/product/in...LAID=107594612
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Old 08-04-2011, 06:57 PM   #8
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AC Unit Relay/Controller Board Fried - HELP!!


I am totally unfamiliar with the brand of unit you mentioned.That said,the relays look familiar..
If you look up the manufacturer and call them they might be able to help you with the relays at least.
As mentioned before if you take the circut board to a good electronics store like Radio Shack,they might be able to point you in the direction of somebody that likes to rebuild old equipment.If you can find someone ,I'm sure they can help you.
Good luck and if you can report back to let us know how you did.
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Old 09-02-2011, 02:41 PM   #9
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AC Unit Relay/Controller Board Fried - HELP!!


Still using a window unit & have been unable to source the parts or skill needed to fix this.
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Old 06-25-2013, 06:12 PM   #10
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AC Unit Relay/Controller Board Fried - HELP!!


Update -- we ended up upgrading to an entirely new system. Costly, but hopefully will be trouble free for the next couple decades at least.
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Old 06-25-2013, 06:30 PM   #11
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AC Unit Relay/Controller Board Fried - HELP!!


Hope it last a good long time. Thanks for the update.

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