Staff Answer
Sep 28, 2026 - 07:36 AM
Boards that keep failing usually point to something else damaging them. The most common cause is an AC heater shorted to ground, so check the heater from each lead to its metal housing (it should read open). Also check the gas valve coil and the electrode wire for shorts, and have your AC supply checked for surges or voltage spikes. A surge protector on the RV helps too.
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