Desa FLAME-MAX VML27PR Owner's Operation And Installation Manual

Also see for FLAME-MAX VML27NR: OWNER'S OPERATION AND INSTALLATION MANUAL Operation and installation manual

Desa FLAME-MAX VML27PR Owner's Operation And Installation Manual Manual pdf 19 page image

111115-01D1919For more information, visit www.desatech.comFor more information, visit www.desatech.comTROUBLESHOOTINGWARNING: Turn off heaterand let cool before servicing.Only a qualified service personshould service and repair heater.CAUTION: Never use a wire,needle, or similar object to cleanODS/pilot. This can damage ODS/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 equipmentshutoff valve closed2. Control knob not in PILOT position3. Control knob not pressed in while inPILOT position4. Air in gas lines when installed5. Depleted gas supply (propane/LP gas)6. ODS/pilot is clogged7. Gas regulator setting is not correct1. Control knob not fully pressed in2. Control knob not pressed in long enough3. Equipment 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 ODS/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 to basepanel of log set. Nut is located behindbase panel4. Replace ignitor cable5. Replace piezo ignitor6. Replace pilot assembly7. Replace pilot assembly1. Turn on gas supply or open equipmentshutoff valve2. Turn control knob to PILOT position3. Press in control knob while in PILOTposition4. Continue holding down control knob.Repeat igniting operation until air is re-moved5. Contact local propane/LP gas company6. Clean ODS/pilot (see Cleaning andMaintenance, page 18) or replace ODS/pilot assembly7. Replace gas control1. Press in control knob fully2. After ODS/pilot lights, keep controlknob pressed in 30 seconds3. Fully open equipment shutoff valve4. A) Contact local natural or propane/LPgas companyB) Clean ODS/pilot (see Cleaning andMaintenance, page 18) or replace ODS/pilot assembly5. Hand tighten until snug, then tighten1/4 turn more6. Replace pilot assembly7. Replace control valveOBSERVED PROBLEMWhen ignitor button is pressed, there is nospark at ODS/pilotWhen ignitor button is pressed, there isspark at ODS/pilot but no ignitionODS/pilot lights but flame goes out whencontrol knob is releasedNote: For additional help, visit DESAHeating Products' technical service website at www.desatech.com.Note: All troubleshooting items are listed inorder of operation.TROUBLESHOOTING