Sanyo KH2442 / CH2442 Service Manual page 170

10) Symptom: LCD on the remote controller displays "CHECK P02". (Compressor / outdoor
Is the power supply to the outdoor
unit normal?
(Voltage / defective phase?)
Section
1
Is the fuse on the outdoor unit
PCB blown (F1 and F2)?
Is the high pressure switch
(63 PH) off?
2
Is there 230-208 V AC between
CN19-9 and CN19-7 on the
outdoor unit PCB?
3
• No refrigerant
• High load
• 4-way valve defect
4
• Clogged refrigerant circuit
• Electronic refrigerant control valve
defect (indoor unit)
fan protection thermostat operation warning / power supply voltage
abnormality)
Start
No
Yes
Yes
No
Yes
No
Yes
No
Is there connector contact defect?
Replace the outdoor unit PCB.
Check the power breaker etc.
and repair.
Replace the fuse.
Replace the outdoor unit PCB.
Replace the outdoor unit PCB.
Is the outdoor fan wire winding
protection thermostat (49FO) off?
Replace the outdoor fan.
Yes
No
IV - 14
4. Service procedures
No
Yes
Correct the connection
2099_THS_I
SM830082