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Troubleshooting
See reverse side for
wiring diagram and
relevant color-coded
test positions.
Yes
●
Yes No
Yes
●
No
No
Yes
Yes
No
No
Yes
Continue to monitor;
the system is starting
under an abnormal load
Replace IPM
Replace IPM
Check refrigerant charge
Start
The set temperature is 5°F max.
from the room temperature?
Does the error code display
before the compressor starts?
5 min and back on,
compressor exceeds
over-current point in
Service Manual?
There is pulsing 50-200
VAC at compressor
terminals U, V, and W , read
from the terminal solder
points on the IPM?
There is 264-373 VDC at
P and N on the IPM?
Change set temperature
Error Code (Indoor/Outdoor)
F2/LED1: 24 Flash
Complete the “Check This First” Flow
Chart before continuing.
Models:
AW09EH2VHD/ASYW09URDWD
AW12EH2VHD/ASYW12URDWD
AW18EH2VHD/ASYW18URDWD
1U09EH2VHE/ASH109URDSE
1U12EH2VHE/ASH112URDSE
1U18EH2VHE/ASH118URDSE
ERROR CODES and Troubleshooting
PAGE 81
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