Navien CH-180 Service manual - page 78
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
76
Does the fan motor have
nominal operation voltage?
Yes
No
Check power and connector
Is there any pulse output from
the fan motor?
Check the voltage between black and red wire of
CN 8: 120 - 180VDC
No
Replace fan assembly
Check the voltage between black and white wire of
CN 8: 2 - 8VDC
Yes
Replace PCB
©Navien America Inc. 2010
CH series service Manual
Version 1.0