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Furnace making a strange noise
Some sounds are normal; banging, scraping, combustion, or electrical sounds deserve service.
CHECK SAFETY FIRSTANSWER ONLY WHAT CHANGES THE NEXT STEPGET A CLEAR NEXT ACTION
ACTIVE OUTPUT
CONTROL STATESYSTEM READYType a problem or press a mode.
MODE SELECTOR
PRESS A MODEChoose by what you need, not by household jargon.
Some sounds are normal; banging, scraping, combustion, or electrical sounds deserve service.
Adultomatic starts with the decision flow above. Supporting information belongs below the machine, not in front of it.