Sanyo SPW-XR253GH56 Technical Data & Service Manual page 181

10) Symptom: LCD on the remote controller displays "CHECK P02". (Compressor /
outdoor fan protection thermostat operation warning / power supply
voltage abnormality)
Start
Is the power supply to the outdoor
unit normal?
(Voltage / defective phase?)
Yes
Is the fuse on the outdoor unit
PCB blown (F1 and F2)?
No
Is the high voltage switch
(63 PH) off?
No
Is there 220-240 V AC between
CN19-9 and CN19-1 on the
outdoor unit PCB?
No
Is the compressor protection
thermostat (49C) off except 48 type?
Yes
• No refrigerant
• High load
• 4-way valve defect
• Clogged refrigerant circuit
• Electronic refrigerant control valve
defect (indoor unit)
No
Check the power breaker etc.
and repair.
Yes
Replace the fuse.
Yes
Replace the outdoor unit PCB.
Yes
Replace the outdoor unit PCB.
Is the outdoor fan wire winding
protection thermostat (49FO) off?
No
Is there connector contact defect?
No
Replace the outdoor unit PCB.
IV - 15
4. Service procedures
No
Yes
Replace the outdoor fan.
Yes
Correct the connection
1
2
3
4
0342_M_I
5
SM830080