Desa CGN18C Owner's Operation And Installation Manual

Contents

Desa CGN18C Owner's Operation And Installation Manual Manual pdf 22 page image

22101806TROUBLE-SHOOTINGContinuedOBSERVEDPROBLEMWhen ignitor buttonis pressed, there isspark at ODS/pilotbut no ignitionODS/pilot lights butflame goes out whencontrol knob isreleasedBurner does not lightafter ODS/pilot is litPOSSIBLECAUSE1. Gas supply turned offor manual shutoffvalve closed2. Control knob not inPILOT position3. Control knob notpressed in while inPILOT position4. Air in gas lines wheninstalled5. ODS/pilot is clogged6. Gas regulator setting isnot correct1. Control knob not fullypressed in2. Control knob notpressed in long enough3. Manual shutoff valvenot fully open4. Thermocouple connec-tion loose at controlvalve5. Pilot flame not touch-ing thermocouple,which allows thermo-couple to cool, causingpilot flame to go out.This problem could becaused by one or bothof the following:A) Low gas pressureB) Dirty or partiallyclogged ODS/pilot6. Thermocouple dam-aged7. Control valve damaged1. Burner orifice iscloggedREMEDY1. Turn on gas supply oropen manual shutoffvalve2. Turn control knob toPILOT position3. Press in control knobwhile in PILOTposition4. Continue holding downcontrol knob. Repeatigniting operation untilair is removed5. Clean ODS/pilot (seeCleaning and Mainte-nance, page 21) orreplace ODS/pilotassembly6. Replace gas regulator1. Press in control knobfully2. After ODS/pilot lights,keep control knobpressed in 30 seconds3. Fully open manualshut-off valve4. Hand tighten untilsnug, then tighten 1/4turn more5. A) Contact localnatural gas companyB) Clean ODS/pilot(see Cleaning andMaintenance, page 21)or replace ODS/pilotassembly6. Replace thermocouple7. Replace control valve1. Clean burner (seeCleaning and Mainte-nance, page 21) orreplace burner orifice