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ERROR CODES AND TROUBLESHOOTING
PAGE 42
ENGLISH
Error Codes and Troubleshooting
See following page for
wiring diagram, relevant
color-coded test
positions, and sensor
resistance values.
Error Codes (Indoor/Outdoor)
F6/LED1: 12 Flash
Ambient Temperature Sensor Failure
F7/LED1: 11 Flash
Suction Temperature Sensor Failure
F21/LED1: 10 Flash
Defrost Temperature Sensor Failure
F25/LED1: 13 Flash
Discharge Temperature Sensor Failure
E1/LED1: No Flash
Room Temperature Sensor Failure
E2/LED1: No Flash
Indoor Coil Temperature Sensor Failure
Completethe“CheckThisFirst”Flow
Chartbeforecontinuing.
Models:
AW24TL2HFA
AW30TL2HFA
AW36TL2HFA
ASYW24TRDFA
ASYW30TRDFA
ASYW36TRDFA
1U24TL2HFA
1U3036TL2HFA
ASH124TRDFA
ASH3036TRDFA
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
dierent meter.
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
connector depending on sensor conguration.
Is the voltage ~5VDC?
Is the temperature at the
sensor out of operating
range (+/- 3%)?
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