Desa CHDV37N/P Owner's Operation And Installation Manual

Contents

28105542DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)CHDV37N/P(A,B) AND CHDV41N/P(A,B)TROUBLESHOOTING WARNING: Turn off heaterand let cool before servicing. Onlya qualified service person shouldservice and repair heater.CAUTION: Never use a wire,needle, or similar object to cleanpilot. This can damage pilot unit.POSSIBLE CAUSE1. Ignitor electrode not connected to igni-tor cable2. Ignitor cable pinched or wet3. Piezo ignitor nut is loose4. Broken ignitor cable5. Bad piezo ignitor6. Ignitor electrode broken7. Ignitor electrode positioned wrong1. Gas supply turned off or manual shutoffvalve closed2. Gas control knob not in PILOT position3. Gas control knob not pressed in whilein PILOT position4. Air in gas lines when installed5. Depleted gas supply (propane/LP mod-els only)6. Pilot is clogged7. Gas regulator setting is not correct1. Gas control knob not fully pressed in2. Gas control knob not pressed in longenough3. Manual shutoff valve not fully open4. Pilot flame not touching thermocouple,which allows thermocouple to cool,causing pilot flame to go out. This prob-lem could be caused by one or both ofthe following:A) Low gas pressureB) Dirty or partially clogged pilot5. Thermocouple connection loose at con-trol valve6. Thermocouple damaged7. Control valve damagedREMEDY1. Reconnect ignitor cable2. Free ignitor cable if pinched by anymetal or tubing. Keep ignitor cable dry3. Tighten nut holding piezo ignitor. Nutis located behind the mounting bracket4. Replace ignitor cable5. Replace piezo ignitor6. Replace pilot assembly7. Replace pilot assembly1. Turn on gas supply or open manualshutoff valve2. Turn gas control knob to PILOT position3. Press in gas control knob while in PILOTposition4. Continue holding down gas controlknob. Repeat igniting operation until airis removed5. Contact local propane/LP gas company6. Clean pilot (see Cleaning and Mainte-nance, page 27) or replace pilot assembly7. Replace gas control1. Press in gas control knob fully2. After pilot lights, keep gas control knobpressed in 30 seconds3. Fully open manual shutoff valve4. A) Contact local gas companyB) Clean pilot (see Cleaning and Mainte-nance, page 27) or replace pilot assembly5. Hand tighten until snug, then tighten1/4 turn more6. Replace thermocouple7. Replace control valveOBSERVED PROBLEMWhen ignitor button is pressed, there is nospark at pilotWhen ignitor button is pressed, there isspark at pilot but no ignitionPilot lights but flame goes out when controlknob is releasedNote: For additional help, visit DESAInternational’s technical service web siteat www.desatech.com.Note: All troubleshooting items are listed inorder of operation.www.desatech.com