5-14
5
Check power supply
1-3
Extreme voltage fluctuations
Not satisfied with
+
10% rated supply voltage1-1
1-2
Extreme distortion of voltage waveform1-3
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).
•
1.
2.
2 2-3
2-2
Loose electrical wire connection
2-1
Correct wiring
2-3
Has FUSE2 / FUSE3 blown?
Check the electrical conduction with tester.
2-2
Yes
Yes
No
No
Replace CR board.2-3
CN-TD
FUSE3
FUSE2
PC board
wiring
Check not only in the outdoor unit stop mode but in the drive mode.
*
Trip current value
3-phase model
HP = horse power
Heating
Cooling
8 HP 10 HP
21.5A16.5A
18.5A15.5A
(for 3-phase outdoor Unit PCB)
ACXA73-3030* (U-200PZH2E8)
(for 3-phase outdoor Unit PCB)
ACXA73-3028* (U-250PZH2E8)
FUSE2
FUSE3
SM830276-00_欧州向け R32シングル TD＆SM.indb 14 19/02/28 13:29:29
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