Carrier Circuit Board 325878-751

Carrier circuit board P/N 325878-751.

Genuine Carrier part. Not aftermarket. 

Aftermarket boards are not properly designed and a major problem is in their fixed timing. It will cause heat exchanger failure. The relay contacts are not rated properly and there are issues with the flame sense circuit as well as pre purge and post purge timing.

Includes instruction sheet and wiring harness needed for changeout.

Replaces P/N:

HK42FZ016,

HK42FZ011,

HK42FZ009,

HK42FZ008,

HK42FZ007