Daikin FTXN50L - E1: Outdoor PCB Abnormality

Service Diagnosis
41
E1
Description
OUTDOOR PCB ABNORMALITY
Possible Root
cause
1. Micro Controller program run-away due to external factor such as Noise, Momentary voltage
drop, Momentary power failure.
2. Damage of EEPROM.
3. Faulty outdoor unit PCB.
4. Broken hardness between PCB.
Troubleshooting
Error still
occur?
No
Yes
Grounded?
Yes
Turn on the power again.
Replace the harness.
Check if the outdoor unit is
grounded.
No
Ground the system.
Is the harness
broken?
Replace outdoor PCB.
Replace outdoor PCB.
No
Yes