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Mini VRF SYSTEM
Trouble Diagnosis
3. Mini VRF System Alarm Codes
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4. Mini VRF System Alarm Codes
Mini VRF SYSTEM
Trouble Diagnosis
Replace the control PC board of the outdoor unit.
Is the power to the control PC board of the outdoor unit on?
Check the LED.
1-1
1-2
1-2 (Turn the power
back on)
Power on
Yes
No
1 Power,
wiring
E30 Outdoor Unit Serial Transmission Error
Error Detection Method
Error Diagnosis
Outdoor unit unable to read and confirm its own transmission data with the board of the outdoor unit.
The power to the control PC board of the outdoor unit is not turned on.
The circuit on the control PC board of the outdoor unit faulty.
(Transmission from an outdoor unit faulty.)
•
•
1.
2.
SM830195-04_Mini VRF SYS.indb 24 15/02/16 18:01:30
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