Rheem RTGH-RH10DV Service Manual page 63

Chapter 4 Troubleshooting
Error code
When Exhaust Thermistor's wiring line located at Exhaust is disconnected.
Exhaust (White / Blue)
② Measure resistance across the Exhaust
Thermistor with a multi-meter. If the multi-meter
displays 0Ω (short circuit), replace the Exhaust
Thermistor.
Meaning
Exhaust Thermistor Open or
Short Circuit
(Automatic restore)
Failure event
Check point
① Verify that the Exhaust Thermistor is properly secured
in the exhaust connection. Verify proper connection of
the Exhaust Thermistor's wiring to the circuit board.
(CN7 : White ⑤, Blue ⑫)
Condition
When no response at Exhaust
Thermistor, error code 35 will
appear.
63