Empire Comfort Systems VFPC20IN73N-2 Installation Instructions And Owner's Manual page 39

INTERMITTENT CONTROL SYSTEM TROUBLESHOOTING
PROBLEM OBSERVED
Burner lights but does not stay lit
while pilot remains on
Burner & pilot light but will not
stay lit
Incorrect burner flame
Backfire of burner
Appliance produces unwanted
odors
Whistle noise from appliance
43165-1-1221
POSSIBLE CAUSE
Low gas pressure
Loose sensor wire
Valve not grounded well
Clogged or dirty burner ports
(For fireplace equipped with optional
thermostat or thermostat remote) Room
temperature is higher than thermostat
setting
(Optional) Remote control batteries failing
Faulty pilot or thermocouple (millivolts)
Faulty valve
Flame sensor dirty
Low gas pressure
Not enough fresh air for pilot
Clogged or dirty burner ports
(For fireplace equipped with optional
thermostat or thermostat remote) Room
temperature is higher than thermostat
setting
(Optional) Remote control batteries failing
Faulty pilot or thermocouple
Incorrect gas supply or pressure
Blocked orifice
Clogged or dirty burner ports
Faulty valve
High altitude
Clogged or dirty burner ports
Blocked orifice
High/Low gas pressure
Initial burn-off of manufacturing chemicals
Vapors from paint, candles, air fresheners,
hairspray, glue, etc.
Check gas pressure
Air in gas line
Flex line pinched or too small diameter line
CORRECTIVE MEASURE
Check gas supply pressure
Check wire connection
Check ground connections
Clean burner ports
Move (optional) remote away from fireplace
Set higher temperature on (Optional) remote/
thermostat
Replace batteries in remote transmitter and
receiver
Replace pilot
Replace valve
Clean pilot sensor
Check gas supply pressure
Open door or window - ventilate
Clean burner ports
Move (optional) remote away from fireplace
Set higher temperature on (Optional) remote/
thermostat
Replace batteries in remote transmitter and
receiver
Replace pilot
Check gas supply pressure
Check orifice opening
Clean burner ports
Replace valve
Adjust orifice size for altitude or pressure
Clean burner ports
Check orifice opening
Check gas supply pressure
Ventilate room until odor stops
Ventilate room until odor stops. Do not use paint,
candles, air fresheners, hairspray, glue, etc around
fireplace
Adjust gas pressure to recommended setting.
Bleed lines
Replace pinched flexline, replace gas feed line with
larger diameter, or non-whistle gas flexline (sold
separately)
Page 39