TGM MWVIT18S - Sensor, Fan Speed, and Leakage Errors

45
9.2.3 Zero crossing detection error diagnosis and solution
（
E2
）
Error Code
E2
Malfunction decision
conditions
The zero crossing signal time interval is not correct for continuous
240s
Supposed causes ● Indoor PCB faulty
Troubleshooting:
Check if the connections and
power supply is normal?
Correct the connections. Turn on the
unit when the power supply is good.
No
Yes
Indoor main PCB is
defective. Replace indoor
main PCB.