Design Dynamics VF-18N-BTB Owner's Operation And Installation Manual

Also see for VF-18N-BTB: OWNER'S OPERATION AND INSTALLATION MANUAL OWNER'S OPERATION AND INSTALLATION MANUAL

Design Dynamics VF-18N-BTB Owner's Operation And Installation Manual Manual pdf 19 page image

111826-01For more information, visit www.desatech.com1919TROUBLESHOOTINGNote: All troubleshooting items are listedin order of operation.WARNING: Turn off and un-plug heater and let cool beforeservicing. Only a qualified serviceperson should service and repairCAUTION: Never use a wire,needle, or similar object to cleanODS/pilot.This can damage ODS/POSSIBLE CAUSE1. Ignitor electrode not connected to ignitorca ble2. Ignitor cable pinched or wet3. Piezo ignitor nut is loose4. Broken ignitor cable5. Bad piezo ignitor6. Ignitor electrode positioned wrong orbroken1. Gas supply turned off or equipmentshutoff valve closed2. Control knob not in PI LOT po si tion3. Control knob not pressed in while inPI LOT po si tion4. Air in gas lines when installed5. Depleted gas supply (propane/LPonly)6. ODS/pilot is clogged7. Gas regulator setting is not correct1. Control knob not fully pressed in2. Control knob not pressed in longenough3. Safety interlock system has beentrig gered4. Equipment shutoff valve not fully open5. Pilot flame not touch ing thermo cou ple,which al lows ther mo cou ple to cool,caus ing pilot flame to go out. This prob-lem could be caused by one or both ofthe fol low ing:A) Low gas pressureB) Dirty or partially clogged ODS/pilot6. Ther mo cou ple con nec tion loose at con-trol valveREMEDY1. 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 panel.4. Replace ignitor cable5. Replace piezo ignitor6. Replace pilot assembly for remote-readyunits; Replace ignitor electrode for vari-able manually controlled units1. Turn on gas supply or open equipmentshutoff valve2. Turn control knob to PI LOT position3. Press in control knob while in PILOTpo si tion4. Continue holding down control knob.Repeat igniting operation until air isre moved5. Contact local propane/LP gas com pany6. Clean ODS/pilot (see Cleaning andMain te nance, page 18) or re placeODS/pilot assem bly7. 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. A) Contact local natural or propane/LPgas companyB) Clean ODS/pilot (see Cleaning andMain te nance, page 18) or replace ODS/pilot assembly6. Hand tighten until snug, then tighten1/4 turn more7. Replace pilot assembly8. Replace control valveOBSERVED PROBLEMWhen ignitor button is pressed, there is nospark at ODS/pilotWhen ignitor button is pressed, there is sparkat ODS/pilot but no ig ni tionODS/pilot lights but fl ame goes out whencontrol knob is releasedNote: For additional help, visit DESAIn ter na tion al’s technical service website at www.desatech.com.TROUBLESHOOTING