OUTDOOR PIPE TEMPERATURE SENSOR ERROR
Cause
Open /Shorted Sensor.
Solution
Check ohm reading of sensor.
Cause
Sensor disconnect.
Solution
Check for connection of sensor to Main PCB
Cause
Sensor harness damage.
Solution
Inspect the sensor harness for damage/breaks.
Check for moisture around connector.
DETAILS BELOW:
When there is a Pipe Sensor on the unit it will typically be in a 4-wire harness at the PCB. 2 wires are the Pipe Sensor and the other 2 are your Air Sensor.
*Sensor will be located in a holder on the condenser coil/discharge tubing.
Note: If Sensor tests correctly and there are no connection/wiring issues found then replace PCB that sensor is connected to.