L.B. White 322 Norseman - Horizontal - Manual (Page 14)

14
Troubleshooting Information
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.)
* 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).
* Pilot safety gas control power * Replace entire pilot safety control valve.
unit is defective.
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 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 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.
(1) Tighten the thermocouple nut finger tight and snug in place with appropriate wrench. DO NOT OVERTIGHTEN.