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barryabko1

12:32PM | 04/22/09
Member Since: 04/21/09
1 lifetime posts
Bvhvac
Hi All,

I am attempting to replace the original control board (HK42FZ004) in my Payne heater with a new replacement board (Carrier 325878-751).
More detail: the actual part number for the new board is HK42FZ013

Unfortunately, there seems to be three wires connected on the old board that do not have obvious connection terminals on the new board. The wires are (as marked on the old board):

1)L2 – which goes to the main blower.

2)PR2 – which goes to a small iron transformer.

3)COM - which goes to one leg of the main AC line.

I do not see L2, PR2 or COM connection points on the new board. Does anyone know where these wires should be connected? Thanks in advance for your help! My email is barryabko (at) hotmail.com.

Thanks,

Barry
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