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Check burner fan motor
Burner giving
excessive noise
Suction lift too great
Check burner oil pump
Foreign matter in fan
Worn/dry bearings
Insecure burner fan
Water in fuel line
Fuel feed restriction
Warm air short circuit
Adjust warm air
discharge/cool air inlet
accordingly.
Check fan and motor
assembly
Fan and limit regularly
go to overheat
Insufficient airflow over
the heat exchanger
Check for high resistance
Check outlet grilles are not
closed
or
Check filter is clean
Check for no loose contacts
Check pulleys are secure
Check belts and tension
Fan and/or motor not at
correct speed
Check fan and motor
are secure
Check fan is not blocked
or
Check impellor is not slipping
Summary of Contents for OUH 100
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