Sanyo SPW-U255SH - Outdoor Unit Fan Motor Drive Circuit Trouble

5-13
5
(4) [Alarm "P22"] Outdoor unit fan motor drive circuit trouble
No
Are the connectors "A"
connected correctly to the outdoor
unit control PCB?
Yes
Start of defect diagnosis
Connectors
Type 256, 366
"A" = CN030(FAN)
Type 486, 606
"A" = CN003(FM1),

CN005(FM2)
Connectors
Type 256, 366
"A" = CN030(FAN)
Type 486, 606
"A" = CN003(FM1),

CN005(FM2)
Does the
fan rotate without resistance
when spun manually after the connectors
"A" are disconnected from the outdoor
unit control PCB?
Normal operation?
Outdoor unit control PCB is faulty. Replace
Complete
No
Yes
No
Yes
Correct the connections
Fan motor trouble Replace
Fan motor trouble Replace
SM830160-03ClassicPAC-iA4.ind1313SM830160-03ClassicPAC-iA4.ind1313 2010/02/1610:30:072010/02/1610:30:07