L.B. White 100 Workman - Standard LP - Manual (Page 14)

14
Troubleshooting
PROBLEMS CAUSES REMEDIES
1. Pilot will not light. * Propane gas tank is empty. * Fill tank.
* Fuel supply valves closed. * Open fuel supply valves.
* Excess flow valve in P.O.L. * Close propane cylinder valve. Wait 5 minutes
fitting on regulator is closed. and open cylinder valve slowly.
* Pilot button not fully pushed in. * Push in pilot button completely.
* Pilot orifice is plugged. * Clean or replace pilot orifice. (DO NOT poke 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 15 - 20 seconds is
sufficient) on pilot control of gas 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 * Propane gas tank empty. * Fill tank.
light.
* Fuel supply valves closed on heater * Open all valves.
and at tank.
* Pilot light not lit. * Light the pilot.
* Burner orifice holes plugged. * Clean the burner orifices.
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.