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Troubleshooting
See reverse side for
wiring diagram, relevant
color-coded test
positions, and sensor
resistance values.
Error Codes (Indoor/Outdoor)
F6/LED1: 12 Flash
Ambient Temperature Sensor FailureF7/LED1: 11 Flash
Suction Temperature Sensor FailureF21/LED1: 10 Flash
Defrost Temperature Sensor FailureF25/LED1: 13 Flash
Discharge Temperature Sensor FailureE1/LED1: No Flash
Room Temperature Sensor FailureE2/LED1: No Flash
Indoor Coil Temperature Sensor FailureComplete the “Check This First” Flow
Chart before continuing.
Models:
Yes
Yes
Yes
Yes No
No
No
No
Re-seat connector
Replace sensor.
Go to next step
to test the board
as well before
replacing sensor.
Replace main
board. Replace
sensor as well if
resistance was
incorrect in the
previous step.
Re-seat and
re-check sensor
resistance with a
Replace sensor
Start
Is connector plugged in and
seated securely?
Disconnect power and un-plug senor
connector from the board.
Check resistance across the set of
wires for the faulting sensor. Does
the resistance correspond to the
temperature located in the respective
chart ? (See Reverse side.)
Reconnect sensor to the board and re-apply power.
Check voltage between the two corresponding
solder joints or through the top of the Molex
Is the voltage ~5VDC?
Is the temperature at the
sensor out of operating
range (+/- 3%)?
ERROR CODES and Troubleshooting PAGE 39
ASYW09CRAWA
ASYW12CRAWA
ASYW18CRDWA
ASYW24CRDWA
ASH109CRAWA
ASH112CRAWA
ASH118CRAWA
ASH124CRAWA
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