PAGE 8 OF 8
0716 IH-5221
TROUBLESHOOTING
OPERATING ISSUE
CAUSES
RECOMMENDATIONS
Pilot won't light.
NOTE: Heater operates at
reduced efficiency below
40°F.
1. Cylinder valve is closed.
2. Blockage in orifice or pilot tube.
3. Air in gas line.
4. Low gas pressure with cylinder valve fully
open.
5. Igniter fails.
1. Open valve.
2. Clean or replace orifice or pilot tube.
3. Open gas line and bleed it (pressing control
knob in) for no more than 1-2 minutes or until
you smell gas.
4. Turn cylinder valve "OFF" and replace
cylinder.
5. Use match to light pilot; obtain new igniter
and replace.
Pilot won't stay lit.
1. Dirt buildup around pilot.
2. Connection between gas valve and pilot
assembly is loose.
3. Thermocouple is not operating correctly.
1. Clean dirt from around pilot.
2. Tighten connection and perform leak check.
3. Replace thermocouple.
Burner won't light.
1. Propane cylinder is frosted over.
2. Blockage in orifice.
3. Control knob is not in "ON" position.
1. Wait until the propane cylinder warms up
and becomes unfrosted.
2. Clear blockage.
3. Turn control knob to "ON."
Burner flame is low.
1. Gas pressure is low.
2. Outdoor temperature is less than 40°F and
tank is less than 1/4 full.
3. Control knob fully "ON."
4. Spiders and insects nest in burner or orifices.
1. Turn cylinder valve "OFF" and replace
cylinder.
2. Use a full cylinder.
3. Check burner and orifices for blockage.
4. Clean burner and orifices.
Thick black smoke appears.
Blockage in burner.
Remove blockage and clean burner inside
and outside.
Gas odor with extreme yellow
tipping of flame.
Spiders and insects nest in burner or orifices.
Clean burner and orifices.
Heater glow is excessively
uneven.
Spiders and insects nest in burner or orifices.
Clean burner and orifices.
Heater makes popping
noises.
Spiders and insects nest in burner or orifices.
Clean burner and orifices.
Carbon buildup.
Dirt or film on reflector and burner screen.
Clean reflector and burner screen.
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