Outdoor Unit Pcb Abnormality - Daikin ARXG35E3V1B Service Manual

Troubleshooting
4.10

Outdoor Unit PCB Abnormality

E1
Remote
Controller
Display
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
88
Detect within the programme of the microcomputer that the programme is in normal running
order.
When the programme of the microcomputer is in abnormal running order.
Out of control of microcomputer caused by external factors
Noise
Momentary fall of voltage
Momentary power loss
Defective outdoor unit PCB
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Power on again
Error again?
NO
Check to see that the machine is
grounded.
Grounded?
YES
YES
NO
SiBE04-809
Replace the outdoor unit
PCB.
Carry out grounding work.
The cause can be external
factors other than
malfunction.
Investigate the cause of
noise.
(R7183)
Service Diagnosis