Coleman Air Handler Model #AH12H10BA
Circuit Board # 3612-310

Technician will install parts if I purchase them.

He said that I need a fan relay and heat sequencers and temperature limit switches.

Can you please let me know what part numbers I need to order?

Let the tech tell you. He knows the unit.

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Originally Posted by ma0641

Let the tech tell you. He knows the unit.

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Thanks for answering back. I finally got ahold of him, but I guess that it is illegal for him to do this out of his company. So that is why I have to do the leg work to get the parts. He said that all I have to have is the fan relay. He got a dual sequencer out of another dead unit. The fan relay was not good. I found a lot of fan relays any suggestions on which one I should get?

Fan relays are pretty simple. Just match input and output ratings. Problem is the ones on a circuit board don't have wires, they have soldered pins. So get one with wire leads if possible or you will need to solder leads on. Try Grainger or an electrical supply store.

Quote:

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Originally Posted by ma0641

Fan relays are pretty simple. Just match input and output ratings. Problem is the ones on a circuit board don't have wires, they have soldered pins. So get one with wire leads if possible or you will need to solder leads on. Try Grainger or an electrical supply store.

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Thank you. He is just going to use 2 sequencers, one for the heat and one for the fan relay. Hope he knows what he is doing...