Desa V036NR Series Owner's Operation And Installation Manual

Contents

www.desatech.com 119109-01G16TROUbLEShOOTINGWARNING: Turn off heater and let cool before servicing. Only aqualified service person should service and repair heater.CAUTION: Never use a wire, needle or similar object to cleanpilot. This can damage pilot unit.Note: All troubleshooting items are listed in order of operation.POSSIBLE CAUSE1. Ignitor electrode not con-nected to ignitor cable2. Ignitor cable pinched orwet3. Piezo ignitor nut is loose4. Broken ignitor cable5. Bad piezo ignitor6. Ignitor electrode broken7. Ignitor electrode positionedwrong1. Gas supply turned off orequipment shutoff valveclosed2. Gas control knob not inPILOT position3. Gas control knob notpressed in while in PILOTposition4. Air in gas lines when in-stalled5. Depleted gas supply (pro-pane/LP models only)6. Pilot is clogged7. Gas regulator setting is notcorrect1. Burner orifice clogged2. Inlet gas pressure is toolow3. Thermopile leads discon-nected or improperly con-nected4. Thermopile is defectiveREMEDY1. Reconnect ignitor cable2. Free ignitor cable if pinchedby any metal or tubing.Keep ignitor cable dry3. Tighten nut holding piezo ig-nitor. Nut is located behindthe mounting bracket4. Replace ignitor cable5. Replace piezo ignitor6. Replace pilot assembly7. Tighten electrode. Replaceif necessary1. Turn on gas supply or openequipment shutoff valve2. Turn gas control knob toPILOT position3. Press in gas control knobwhile in PILOT position4. Continue holding downcontrol knob. Repeat ignit-ing operation until air isremoved5. Contact local propane/LPgas company6. Clean pilot (see Cleaningand Maintenance, page 14)or replace pilot assembly7. Replace gas regulator1. Clean burner (see Cleaningand Maintenance, page 14)or replace burner orifice2. Contact local propane/LP ornatural gas company3. Reconnect leads to TP &TPTH terminals on controlvalve4. Replace thermopileObSERVED PRObLEMWhen ignitor button is pressed,there is no spark at pilotWhen ignitor button is pressed,there is spark at pilot but noignitionBurner does not light afterpilot is lit