Sanyo SPW-U253GH56 Service Manual page 74

9) Symptom: LCD on the remote controller displays "CHECK P01". (Indoor fan
Is there 220-240 V AC between S4
and T20-3 on the indoor unit PCB?
Yes
Is there 220-240 V AC between
T20-3 and S4 after T20-1 and T20-3
on the indoor unit PCB shorted?
Replace the indoor unit PCB.
10) Symptom: LCD on the remote controller displays "CHECK P10". (Indoor float switch
Is there 12 V DC between FS-1
and FS-3 on the indoor unit PCB?
4
• Drain pump defect
• Clogged drain
protection thermostat operation warning)
Start
No
Yes
No
operation warning)
Start
No
Yes
No
Is the float switch off?
Yes
Is the indoor fan wire winding
protection thermostat (49FI) off?
Yes
Replace the indoor fan.
Replace the indoor unit PCB.
Correct the connection
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4. Service procedures
No
Correct the connection
0341_M_I
SM830035
0340_M_I