H01 Primary (input) Overcurrent Detected
1.
Error Detection Method
•
Primary current effective value detected overcurrent (trip current value).
Trip current value
3-phase model
Heating
Cooling
2.
Error Diagnosis
1 Power
1-1
supply*
1-2
1-3
1-4
2
PC board
2-1
wiring
2-2
5
2-3
*
Check not only in the outdoor unit stop mode but in the drive mode.
ACXA73-04770 (U-200PE2E8A)
(for 3-phase outdoor Unit PCB)
AMP Air Conditioning
HP = horse power
8 HP
10 HP
23.0A
23.0A
21.5A
21.5A
Not satisfied with + 10% rated supply voltage
Extreme voltage fluctuations
Extreme distortion of voltage waveform
Instantaneous blackout may sometimes occur.
Has FUSE 1/FUSE 2 blown?
Check the electrical conduction with tester.
Loose electrical wire connection
Replace CR board.
ACXA73-04750 (U-250PE2E8A)
(for 3-phase outdoor Unit PCB)
5-14
www.ampair.co.uk | sales@ampair.co.uk
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
Correct wiring
Yes
No
2-3