14
Troubleshooting
PROBLEMS
CAUSES
REMEDIES
1. Pilot will not light.
* Fuel supply valves closed.
* Open fuel supply valves.
* Pilot button not fully depressed.
* Depress pilot button completely.
* Pilot orifice is plugged.
* Clean or replace pilot orifice. (DO NOT insert sharp
instruments in orifice holes, blow out with compressed
air.)
* Inlet screen at inlet of gas valve is
* Remove screen and clean or replace screen.
plugged.
* Restriction in gas hose or
* Remove hose or pilot line from heater and blow
pilot line.
out with compressed air or replace if necessary.
* Air in gas line.
* Push in pilot button (normally 30 seconds is
sufficient) on pilot valve to purge air from
line (usually necessary at time of installation).
NOTE:
Make sure you are pushing the Piezo igniter
button during this time to prevent gas
accumulation.
* Pilot safety gas control power
* Replace entire pilot safety control valve.
unit is defective.
* Defective Piezo igniter or electrode.
* Refer to electrode service instruction section of this
manual for problems associated with Piezo igniter assembly.
2. Pilot lights but will not
* Restriction in gas hose or pilot line.
* See remedy for same cause in Problem #1.
stay lit when pilot
button is released.
* Insufficient time allowed for pilot
* Hold in pilot button for 30 seconds to allow proper
light to heat up thermocouple.
warm up.
* Loose thermocouple.
* Tighten thermocouple at gas control and make sure
it is securely pushed into pilot bracket. Tighten
finger tight and snug the contact nut with an
appropriate wrench.
* Defective thermocouple.
* Replace thermocouple.
* Pilot orifice is plugged.
* See remedy for same in Problem #1.
* Defective pilot safety control valve.
* Replace entire pilot safety control valve.
* Improper gas pressure.
* Set pressure according to pressure on dataplate.
3. Main burner will not
* Fuel supply valves closed on heater
* Open all valves.
light
and at gas supply.
* Pilot light not lit.
* Light the pilot.
* Burner orifice holes plugged.
* Clean the burner orifice.
4. Burner flame lifting
* Fuel pressure set too high.
* Set pressure according to pressure on dataplate.
off burner.
* Blockages in burner orifice or at
* Clean suspected area with soft brush, dry cloth,
primary air inlets of burner.
or compressed air.
5. Heater does not seem
* Gas supply valves not fully open.
* Open valves completely.
to be delivering
maximum heat output.
* Burner orifice holes plugged.
* Clean burner orifice with compressed air or replace.
* Low fuel supply pressure.
* Consult propane gas supplier. Cylinder or tank needs
replacement or refill. Regulator needs adjustment.
Check for use of proper regulation and fuel gas.
