Vanguard SBJ18VNA Owner's Manual

Contents

Vanguard SBJ18VNA Owner's Manual Manual pdf 22 page image

www.desatech.com 114744-01F22TROUBLESHOOTINGWARNING: Turn off and unplug heater and let cool before servicing.Only a qualified service person should service and repair heater.CAUTION: Never use a wire, needle or similar object to cleanODS/pilot. This can damage ODS/pilot unit.Note: All troubleshooting items are listed in order of operation.POSSIBLE CAUSE1. Ignitor electrode not con-nected to ignitor cable2. Ignitor cable pinched orwet3. Broken ignitor cable4. Bad piezo ignitor5. Ignitor electrode positionedwrong or broken1. Gas supply turned off orequipment shutoff valveclosed2. Control knob not in PILOTposition3. Control knob not pressedin while in PILOT position4. Air in gas lines when in-stalled5. Depleted gas supply (pro-pane/LP only)6. ODS/pilot is clogged7. External gas regulator set-ting is not correctREMEDY1. Reconnect ignitor cable2. Free ignitor cable if pinchedby any metal or tubing.Keep ignitor cable dry3. Replace ignitor cable4. Replace piezo ignitor5. Replace pilot assembly forremote-ready units.Replace ignitor electrode forvariable manually controlledunits1. Turn on gas supply or openequipment shutoff valve2. Turn control knob to PILOTposition3. Press in control knob whilein PILOT position4. Continue holding downcontrol knob. Repeat ignit-ing operation until air isremoved5. Contact local propane/LPgas company6. Clean ODS/pilot (see Clean-ing and Maintenance, page21) or replace ODS/pilotassembly7. Replace gas regulatorOBSERVED PROBLEMWhen ignitor button is pressed,there is no spark at ODS/pilotWhen ignitor button is pressed,there is spark at ODS/pilot butno ignition