Advanced Distributor Products Unit Heater SEP−145-A

Inspect the combustion air inducer for any visible damage or wear

Use a small brush to clean the inducer wheel

Is the combustion air inducer clean and free of debris?

Examine burner flames for proper appearance during the heating season

Examine burners for any deposits or blockage

Turn off both electrical and gas supplies to unit

Disconnect gas supply piping, high tension and sensor leads

Vent and Vent Connector Inspection

Check all vent and vent connector joints for tightness

Ensure there are no blockages in the vent and vent connectors

Dispose of any debris or waste found during inspection

Check all wiring for loose connections

Is the voltage within the correct range?

Is the amperage draw within the acceptable limits?

Describe any issues found during the inspection

Set the thermostat to call for heat

Did the system begin normal sequence of operation?

Wait for approximately 30 seconds (pre purge period)

Is the LED fast flashing indicating the gas valve is powered?

Count the number of times the gas valve closes and reopens (should be 3 times)