Panasonic R410A - H01 Primary (Input) Overcurrent Detected

5-32
5
Check power supply
1-3
Extreme voltage fluctuations
Not satisfied with
+
10% rated supply voltage1-1
1-2
Extreme distortion of voltage waveform
1-3
Instantaneous blackout may sometimes occur.1-4
Check power supply
1-2
Check power supply
1-4
Check power supply
2-1
Yes
Yes
Yes
Yes
No
No
No
No
1 Power
supply*
H01 Primary (input) overcurrent detected
Error Detection Method
Error Diagnosis
Primary current effective value detected overcurrent (trip current value).
Trip current value
Single-phase model
hp = horse power
•
1.
2.
2 2-3
2-2
Loose electrical wire connection
2-1
Correct wiring
2-3
Has FUSE 1/FUSE 2 blown?
Check the electrical conduction with tester.
2-2
Yes
Yes
No
No
Replace CR board.2-3
PC board
wiring
Check not only in the outdoor unit stop mode but in the drive mode.
*
Heating
Cooling
2.5 hp
20.0A
18.5A
3 hp
20.0A
18.5A
4 hp
27.0A
27.0A
5 hp
29.0A
29.0A
6 hp
30.0A
30.0A
Trip current value
3-phase model
hp = horse power
Heating
Cooling
4 hp
12.5A
12.0A
5 hp
13.5A
12.6A
6 hp
14.5A
13.0A
FUSE1
FUSE1
FUSE1
FUSE1
A746894 : (U-60PE1R5, U-71PE1R5)
(for single-phase outdoor unit PCB)
A746844 : (U-100PE1R5)
(for single-phase outdoor unit PCB)
A746845 : (U-125PE1R5, U-140PE1R5)
(for single-phase outdoor unit PCB)
A746967 : (U-100PE1R8, U-125PE1R8, U-140PE1R8)
(for 3-phase outdoor unit PCB)
Sec5.indd32Sec5.indd32 2012/03/0920:44:172012/03/0920:44:17