PROBLEM
POSSIBLE CAUSE(S)
SOLUTION
Smell of gas in the room.
Pipe fittings may be leaking.
Check all joints for leaks,
including the gas supply system,
the pilot light supply tube, the
main burner supply tube and all
connections to the control valve
and pressure reducing valve
(STD NG models). Use ONLY a
proper leak check solution.
NEVER USE AN OPEN
FLAME TO CHECK FOR
LEAKS.
A thin coating of black soot
forms inside the glass.
Combustion air supply restricted.
Clean all primary and secondary
air passageways.
Over-supply of gas.
Adjust gas delivery pressure at
test point.
Logs out of position.
Arrange logs correctly.
A white coating forms inside
the glass.
Residues of new logs being
burned off.
Follow glass cleaning directions
under Maintenance Instructions.
Fan hums but there is poor air
circulation.
Dirty fan impeller.
Disconnect electrical power.
Remove fan and clean impeller.
Fan will not run.
STD models.
No power to fan.
Make sure the fan plug is firmly
home and that fan switch is not in
the OFF position. Check whether
the power socket works with
another appliance.
Other models.
No power to fan.
Faulty Thermodisc or wiring.
Loose fan loom plug.
Handpiece for ECS model
ineffective
Fan should not run until firebox is
hot.
Call serviceman.
Check after removing fan.
Aim at receiver.– fit new
batteries.
Fire cycling on and off too
rapidly.
Thermostat models only.
A large fire in a small room.
Incorrect positioning of
thermostat.
Turn flame down to a lower
setting.
Move hand thermostat or wall
thermostat further away from
heater hot air stream.
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