| Problem |
Observed |
Possible Cause |
Solution |
Pilot won't light
Note: Heater operates at reduced efficiency below 40 degrees F. (5 deg. C) |
No flame. |
Tank valve is closed. |
Open valve. |
| |
|
Blockage in orifice or pilot tube. |
Clean or replace orifice or pilot tube. |
| |
|
Air in gas line. |
Open gas line and bleed it (pressing control knob in) for not more than 1-2 minutes or until you smell gas. |
| |
|
Low gas pressure with tank valve fully open. |
Turn tank valve OFF and replace tank. |
| |
|
Igniter fails. |
Use match to light pilot; obtain new igniter and replace. |
| Pilot won't stay lit |
Flame goes out |
Dirt built up around pilot. |
Clean dirt from around pilot. |
| |
|
Connection between gas valve and pilot assembly is loose. |
Tighten connection and perform leak check. |
| |
|
Thermocouple is not operating correctly. |
Replace thermocouple. |
| Burner won't light |
No heat. |
Gas pressure is low. |
Turn tank valve OFF and replace tank. |
| |
|
Blockage in orifice . |
Clear blockage. |
| |
|
Control knob is not in ON position. |
Check burner and orifices for blockage. |
| Burner flame is low |
Low heat. |
Gas pressure is low. |
Turn tank valve OFF and replace tank. |
| |
|
Outdoor temperature is less than 40 deg. F and tank is less than 1/4 full. |
Use a full tank. |
| |
|
Supply hose is bent or kinked. |
Straighten hose. |
| |
|
Control knob fully ON. |
Check burner and orifices for blockage. |
| |
|
Base is not on a level surface. |
Place heater on a level surface. |
| |
|
Heater is level. |
Clean burner. |
| Thick black smoke |
Uneven glow |
Blockage in burner. |
Remove blockage and clean burner inside and outside. |
