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TROUBLESHOOTING
PROBLEM
Pilot won't light
Note: Heater operates at
reduced efficiency below
40ºF (5ºC)
Pilot won't stay lit
Burner won't light
Burner flame is low
Carbon build-up
POSSIBLE CAUSE
Cylinder valve is closed
Blockage in orifice or pilot
tube
Air in gas line
Low gas pressure with
cylinder valve fully open
Igniter fails
Dirt built up around pilot
Connection between gas valve
and pilot assembly is loose
Thermocouple is not
operating correctly
Propane cylinder is frosted
over
Blockage in orifice
Control knob is not in ON
position
Gas pressure is low
Outdoor temperature is less
than 40ºF and tank is less
than 1/4 full
Control knob fully ON
Dirt or film on reflector and
burner screen
Thick black smoke
CORRECTIVE ACTION
Open valve
Clean or replace orifice or
pilot tube
Open gas line and bleed it
(pressing control knob in) for
not more than 1 - 2 minutes
or until you smell gas
Turn cylinder valve OFF and
replace cylinder
Use match to light pilot;
obtain new igniter and replace
Clean dirt from around pilot
Tighten connection and
perform leak check
Replace thermocouple
Wait until the propane
cylinder warms up and
becomes unfrosted
Clear blockage
Turn control knob to ON
Turn cylinder valve OFF and
replace cylinder
Use a full cylinder
Check burner and orifices for
blockage
Clean reflector and burner
screen
Remove blockage and clean
burner inside and outside
17
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