Panasonic S-36PU1E5A Service Manual page 591

H01 Primary (input) Overcurrent Detected
1. Error Detection Method
• Primary current effective value detected overcurrent (trip current value).
Trip current value
Single-phase model
Heating
Cooling
2. Error Diagnosis
1 Power
Not satisfied with + 10% rated supply voltage
1-1
supply*
1-2 Extreme voltage fluctuations
1-3 Extreme distortion of voltage waveform
1-4 Instantaneous blackout may sometimes occur.
2 PC board
Has FUSE 1/FUSE 2 blown?
2-1
wiring
Check the electrical conduction with tester.
2-2 Loose electrical wire connection
2-3 Replace CR board.
*
Check not only in the outdoor unit stop mode but in the drive mode.
CR-50PE1E5 : bottom (U-50PE1E5)
(for single-phase outdoor unit PCB)
F001
hp = horse power
2.5 hp 3 hp 4 hp
20.0A 20.0A 27.0A 29.0A
18.5A 18.5A 27.0A 29.0A
Trip current value
5 hp 6 hp 3-phase model
30.0A Heating
30.0A Cooling
A747898 : (U-60PE1E5A, U-71PE1E5A)
(for single-phase outdoor unit PCB)
5-35
hp = horse power
4 hp 5 hp 6 hp
12.5A 13.5A 14.5A
12.0A 12.6A 13.0A
Yes Check power supply
No 1-2
Yes Check power supply
No 1-3
Yes Check power supply
No 1-4
Yes Check power supply
No 2-1
2-3
Yes
No 2-2
Yes Correct wiring
No 2-3
FUSE1
5