Desa GN30 Safety Information And Installation Manual

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Desa GN30 Safety Information And Installation Manual Manual pdf 17 page image

107884For more information, visit www.desatech.comFor more information, visit www.desatech.com1717TROUBLESHOOTINGTROUBLESHOOTING WARNING: Turn off and un-plug heater and let cool beforeservicing. Only a qualified ser-vice person should service andrepair heater.CAUTION: Never use a wire,needle, or similar object to cleanODS/pilot. This can damage ODS/pilot unit.POSSIBLE CAUSE1. Ignitor electrode positioned wrong2. Ignitor electrode broken3. Ignitor electrode not connected to igni-tor cable4. Ignitor cable pinched or wet5. Broken ignitor cable6. Bad piezo ignitor1. 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 only)6. ODS/pilot is clogged7. Gas regulator setting is not correct1. Control knob not fully pressed in2. Control knob not pressed in long enough3. Safety interlock system has been triggered4. Equipment shutoff valve not fully open5. Thermocouple connection loose at con-trol valve6. 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/pilot7. Thermocouple damaged8. Control valve damagedREMEDY1. Replace pilot assembly2. Replace pilot assembly3. Reconnect ignitor cable4. Free ignitor cable if pinched by anymetal or tubing. Keep ignitor cable dry5. Replace ignitor cable6. Replace piezo ignitor1. 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. Re-peat igniting operation until air is removed5. Contact local propane/LP gas company6. Clean ODS/pilot (see Cleaning andMaintenance, page 16) or replace ODS/pilot assembly7. Replace gas regulator1. Press in control knob fully2. After ODS/pilot lights, keep controlknob pressed in 30 seconds3. Wait one minute for safety interlock sys-tem to reset. Repeat ignition operation4. Fully open equipment shutoff valve5. Hand tighten until snug, then tighten 1/4turn more6. A) Contact local natural or propane/LPgas companyB) Clean ODS/pilot (see Cleaning andMaintenance, page 16) or replace ODS/pilot assembly7. Replace pilot assembly8. 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 DESAInternational’s technical service web siteat www.desatech.com.Note: All troubleshooting items are listed inorder of operation.