Lights flicker and "thump" heard when furnace igniting
I have a rather new 377RLBH with a Dometic 40k BTU furnace. Recently, I have had an intermittent problem with the lights flickering and a "thump" sound coming from the undercarriage when the furnace ignites. It doesn't do so all the time, but at least 1/2 of the ignition cycles.
Anyone seen/heard of such a situation? For what it's worth, I'm plugged into "good" 50 amp shore power and the digital voltmeter on the solar controller reads 13-14v during the ignition cycles in question.
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