Rheem RTGH-RH11DV - Chapter 4: Troubleshooting - False Flame Detection; Er:39 False Flame Sensing

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Errorcode Meaning Condition
False󰘱amesensing
(Automaticrestore)
Iffalse󰘱ameisdetectedafter
combustionisendederrorcode39
willappear.
Failureevent
Aftercompletionofthewaterheatercombustion󰘱amedetectionsensordetectsIncasethe󰘱ame
generated.
Checkpoint
①checkthefrontcoverwillbeclosed.
Chapter4Troubleshooting
■FrommorethanDC2.5Vafterignitionsafetycut-o󰘯willappear
①
WhensettingbeforeignitionislessthanDC2.5V:Replace󰘱amesensor.
②
WhensettingbeforeignitionismorethanDC2.5V:Replacethe󰘱ameobservationglassandgasket.
ITEM NormalValue
Beforeignition MorethanDC2.5V
Afterignition LessthanDC2.5V