Navien CH-180 Service manual - page 99
Other manuals for CH-180:
Owner's Operation Manual, User's Operation Manual, Installation Manual, Operation Manual, Installation Manual
Manual is about: Combination Water Heater
/ Heating Boiler
of
155
97
Check method
Error type
Cause
Check method
Remark
Check if the cold water inlet thermistor connector or
the harness terminal is wet due to any reason,
including leakage.
If the same phenomenon, replace the thermistor.
If the trouble continues despite the checking of above
items, replace the PCB.
Abnormal
thermistor
Other
trouble
Defective
thermistor
connector
Temperture
sensor
Defective
PCB
©Navien America Inc. 2010
CH series service Manual
Version 1.0