Technibel KPAVM93R5TAA Technical Data & Service Manual page 36

10) Symptom:
S
TART
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
Y
ES
¥ No refrigerant
¥ High load
¥ 4-way valve defect
¥ Clogged refrigerant circuit
¥ Electronic refrigerant control valve
defect (indoor unit)
LCD on the remote controller displays "CHECK P02". (Compressor / outdoor fan
protection thermostat operation warning / power supply voltage abnormality)
No
Yes
Yes
Yes
No
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.
No
36
Yes
Yes
Correct the connection
No
0342_M_I