Empire Comfort Systems MILLIVOLT DVCD FP3-4 Series Installation Instructions Manual page 78

INTERMITTENT PILOT CONTROL SYSTEM TROUBLESHOOTING
Burner & pilot light but will not stay lit
Incorrect burner flame
Backfire of burner
Fireplace produces unwanted odors
Whistle noise from fireplace
Page 78
Flame sensor dirty
Low gas pressure
Not enough fresh air for pilot
Clogged or dirty burner ports
(For fireplace equipped with optional ther-
mostat or thermostat remote) Room tem-
perature 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
Blocked orifice
Clogged or dirty burner ports
Low gas pressure
Vapors from paint, hairspray, glue, etc.
Initial burn-off of manufacturing chemicals
Check gas pressure
Air in gas line
Control knob not in fully open position
Spiral gas flex line pinched or too small
diameter line
Clean pilot sensor
Check gas supply pressure
Open door or window - ventilate
Clean burner ports
Move (optional) remote away from fire-
place
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
Check orifice opening
Clean burner ports
Check gas supply pressure
Ventilate room until odor stops. Do not use
paint, hairspray, glue, etc around fireplace
Ventilate room until odor stops
Adjust gas pressure to recommended
setting.
Bleed lines
Open control knob to full position
Straighten flex line where pinched or re-
place gas feed line with larger diameter
38712-4-0920