Panasonic U-4LE1E5 Service Manual page 121

4. Mini VRF System Alarm Codes
3. Mini VRF System Alarm Codes
H03 Compressor CT Sensor (Current Sensor) Unplugged
1. Error Detection Method
It is judged an error based on the criteria listed below.
If 18A or greater is detected when the compressor is stopped (alarm triggered even if the connector is unplugged).
•
• If no current is detected even though a compressor is running.
2. Error Diagnosis
1 Check the
Turn the power on again and run the outdoor unit.
1-1
control
Is alarm occurred after operation?
PC board
5 - 35
5 - 33
Mini VRF SYSTEM
Mini VRF SYSTEM
Trouble Diagnosis
Trouble Diagnosis
Yes Replace CR board.
No See what happens.
5
5