PROBLEMS CAUSES REMEDIES1. 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.* Inlet screen at pilot orifice is * Clean or replace screen.plugged.* Restriction in gas hose or * Remove hose or pilot line from heater and blowpilot line. out with compressed air or replace if necessary.* Air in gas line. * Depress pilot button (normally 30 seconds issufficient) on pilot valve to purge air fromline (usually necessary at time of installation).* Defective pilot safety control valve. * Replace pilot safety control valve.* No spark at electrode. * Refer to igniter and electrode service instruction sectionfor problems associated with these parts.2. The pilot lights, but will not * Restriction in gas hose or pilot line. * See remedy for same cause in Problem #1.stay lit when pilot buttonis released. * Insufficient time allowed for pilot * Hold in pilot button for 30 seconds to allow properlight to heat up thermocouple. warm up.* Loose thermocouple. * Tighten thermocouple at gas control and make sureit is securely pushed into pilot bracket. Tightenfinger tight and snug the contact nut with anappropriate wrench.* Defective thermocouple. * Replace thermocouple.* Pilot orifice is plugged. * See remedy for same in Problem #1.* Defective pilot safety control valve. * Replace pilot safety control valve.* Improper gas pressure. * Set pressure according to pressure on dataplate.3. Pilot lights, but not the * If using LP gas, container is low or empty. * Refill or replace container.main burner.* Safety control valve not positioned to ON.. * Position the control to ON.* Burner orifice plugged. * Clean the burner orifice.4. Heater not delivering * Gas supply valves not fully open. * Open valves completely.maximum heat output. * Burner orifice plugged. * Clean burner orifice with compressed air or replace.5. Pilot stays lit but main burner * Improperly sized LP gas supply * Resize to larger LP gas supplygoes out.Troubleshooting Information16