40 Specifications subject to change without notice. 38MGR-04SM
DIAGNOSIS AND SOLUTION (CONT)
Zero Crossing Detection Error Diagnosis and Solution (E2)
Troubleshooting
ERROR CODE E2
MALFUNCTION DECISION
CONDITIONS
When PCB does not receive zero crossing signal feedback for four minutes or the zero crossing signal
interval is abnormal.
SUPPOSED CAUSES
• Connection mistake
• PCB faulty
No
Yes
Check if the connections and
power supply is normal.
Correct the connections.
Turn on the unit when the
power supply is good.
The indoor main PCB is defective.
Replace the main PCB.
To Next Page
Loading...
Need help?
General
