1144
PROBLEMS
CAUSES
REMEDIES
1. Pilot will not light.
* LP-Gas tank empty.
* Fill LP-Gas tank.
* Gas supply valve closed.
* Open supply valve.
* Pilot control valve button not fully
* Fully depress the pilot button.
depressed.
* Restriction in gas hose.
* Replace hose or blow out with
compressed air.
* Pilot light orifice or screen plugged.
* Clean orifice or screen with compressed
air, or replace orifice or screen if
necessary.
* Air in gas line.
* Depress pilot button on pilot control valve
to bleed the air from the gas line. Usually
necessary at time of installation.
* Excess flow valve in P.O.L.
* Close LP-Gas tank valve, wait
stem closed.
5 minutes and reopen valve slowly.
* Pilot control valve defective.
* Replace pilot control valve.
2. Pilot light will not stay lit when
* Restriction in gas hose.
* Replace hose or blow out with.
pilot control valve is released.
compressed air.
* Loose thermocouple.
* Tighten thermocouple.(1)
* Weak or defective thermocouple.
* Replace thermocouple.(1)
* Pilot light orifice or screen partially
* Clean orifice or screen with compressed
plugged.
air replace pilot orifice or screen if
necessary.
* Defective pilot control valve.
* Replace pilot control valve.
* Debris plugging up pilot screen.
* Replace pilot screen.
3. Pilot light will not stay lit when main
* Pilot light orifice or screen partially
* Clean orifice or screen with compressed
burner and blower are operating.
plugged.
air or replace pilot orifice or screen if
necessary.
* Improper gas pressure.
* Set pressure according to Owner's
Manual or dataplate on heater.
* Weak or defective thermocouple.
* Replace thermocouple.(1)
* Loose thermocouple.
* Tighten thermocouple connection.(1)
4. Heater blowing cold air with pilot
* LP-Gas tank empty.
* Fill LP-Gas tank.
light out.
* Obstruction in gas line.
* Clean the gas line.
* Freeze up of LP gas tank.
* Use larger LP gas tank. Keep tank
full on cold nights.
5. Motor overheating and shutting off.
* Thermal overload switch in motor
* Thermal overload switch in motor
is opening.
opening due to:
a. High voltage - check voltage supply
against heater voltage requirements.
b. Dirty motor - clean motor housing.
c. If motor has oil ports, put several
drops of SAE 20 wt. non-detergent
oil in each oil hole.
6. Heater blowing cold air with pilot
* Main burner valve not open
* Open main burner valve
light burning.
(1)
Tighten the thermocouple nut finger tight and snug in place with appropriate wrench. DO NOT OVERTIGHTEN.
(2)
With any electrical problem, all wiring should be checked for good connections and proper voltage and repaired if a problem is
found.
Troubleshooting Information
