17Eclipse ThermJet Self-Recuperative, V5, Installation Guide 208, 2/4/2013Troubleshooting GuideProblem Possible Cause SolutionCannot initiate start sequence Main power is off Make sure power is on to controlsystem.No power to control Call qualified electrician to investigate.Air pressure switch has not madecontact Check air-pressure switch adjustment.Check air filter.Check blower rotation.Check outlet pressure from blower.High gas pressure switch has tripped Check incoming gas pressure.Adjust gas pressure if necessary.Check pressure switch setting andoperation.Malfunction of flame monitoring controlsystem such as shorted out flamesensor or electrical noise in the sensorlineHave a qualified electrician investigateand rectify.Purge cycle not completed Check flame monitoring controlsystem, purge timer, interlocks andlimit switches.Start-up sequence runs but burnerdoes not light No ignition:• There is no power to the ignitiontransformerRestore power to the ignitiontransformer.Check flame monitor controller.No ignition:• Open circuit between the ignitiontransformer and the spark plugRepair or replace the wiring andconnectors to the spark plug.Check ground connection to thetransformer.No ignition:• The spark plug needs cleaningClean the spark plug.No ignition:• The spark plug is not correctlygrounded to the burnerClean the threads of the spark plugand the burner.Do not apply grease to the thread ofthe spark plug.Too much gas:• Improper gas valve train sequenceVerify solenoid valve is down streamof proportionator.Too much gas:• Manual gas butterfly valves havebeen opened too farCheck pressures and settings againststartup report and adjust asnecessary.Too much gas:• Gas pressure out of the main gaspressure regulator is too highCheck startup setting and, ifnecessary, remove regulator andinvestigate.Not enough gas:• The gas pressure out of the main gaspressure regulator is too low.Check startup settings, then checkregulator and adjust if necessary.Not enough gas:• Start gas solenoid valve does notopenCheck solenoid valve coil for properoperation. Replace if necessary.