80
Troubleshooting
9,000 & 12,000 Units
Temperature Sensor Malfunction
Temperature sensor malfunction
Start Temperature Sensor
Troubleshooting
Is the sensor wire plug loose from
control board
Is there a short or open circuit in the
wire or sensor?
Do the temperature sensor readings
compare to the resistance table in
the Appendix?
Insert the plug correctly
Yes
Is problem corrected?
No
Replace sensor or correct
wire problem
Yes
Is problem corrected?
No
Replace the sensor with
appropriate part number
No
Is problem corrected?
Yes
Replace the controller with the same
part number
End Troubleshooting
Yes
Yes
F1 & F2 will relate to indoor sensor faults
F4 & F5 will relate to outdoor sensor faults