Imperfect CombustionClean air inlet filter.Clean combustion air fan.Clean heat exchanger fins.Check for adequate combustion air ventilation openings and clean if necessary.Check vent system for partial blockage and correct as necessary.
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Imperfect Combustion
Clean air inlet filter.
Clean combustion air fan.
Clean heat exchanger fins.
Check for adequate combustion air ventilation openings and clean if necessary.
Check vent system for partial blockage and correct as necessary.