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JOANNPUTSY
Jan 24, 2008, 04:39 PM
Is there a history of problems with this circuit board in the gms 8 furnace?

hvac1000
Jan 24, 2008, 06:31 PM
No more than others.

therinnaiguy
Jan 25, 2008, 07:36 AM
Make sure the unit has a good ground. It would not hurt to put a second grounding wire in. Keep the circuit board free of dust and make sure all wiring connections are tight. Brown-outs and power surges are circuit boards worst enemies.