Haier AW09EH2VHD Service Manual page 44

Error Code
(Indoor/Outdoor)
F11/LED1: 18 Flash
Loss of Compressor Synchronization
Complete the "Check This First" Flow
Chart before continuing.
Models:
AW09EH2VHD
AW12EH2VHD
AW18EH2VHD
1U09EH2VHD
1U12EH2VHD
1U18EH2VHD
PAGE 44
Momentary loss
of building power
power quality
There is substantially more than
5 VDC or 15 VDC pulsing at CN23
ERROR CODES and Troubleshooting
Yes No
There is 50-200 VAC
Yes
Yes
●
Yes
●
A windings or grounding
Yes
No
No
●
Repair or
No