Jim McGarvie Posted August 15, 2022 Share Posted August 15, 2022 We've had some instances of our Atwood 8535-IV-DCLP not lighting when the batteries have been low. The blower runs, I can hear the gas valve opening and I think I hear the igniter clicking, but no burner light. I understand the furnace won't function properly at very low battery voltage, but I thought it would work down to maybe 11.0V or even lower, but our issue was with a battery voltage of 12.0 and 12.1 volts. Anything above that it works fine. My question is this: What component of the furnace is voltage-critical, that I should try replacing? Or might the problem be unrelated to voltage and just a coincidence? Thanks. Jim Link to comment Share on other sites More sharing options...
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