Unit continues to operate.
Outdoor ambient temperature sensor error.
Condenser coil temperature sensor t3 open circuit or short circuit.
Open circuit or short circuit.
F1 ol 2 time tl on outdoor ambient temperature sensor t4 open circuit or short f2 ol 3 time tl on circuit.
43 communication failure with unit a 44 communication failure with unit b 45 communication failure with unit c 46 communication failure with unit d 47 unit a freeze protection 48 unit b freeze protection.
Use elec heat if available for heating.
Check unit placement if the outdoor unit is in a high temperature area wait until the ambient.
If not available use heat pump if outdoor.
Check sensor is installed correctly on control.
Inverter module igbt over strong current protection.
The ntc sensor s resistance decreases as the outside air temperature increases.
Outdoor unit eeprom error.
The sensor detects an abnormally low or high outdoor ambient temperature.
The sensor detects an abnormally low or high coil temperature.
Open or short circuit of indoor room or evaporator temperature sensor.
The ambient atc or outside air temperature sensor is an ntc negative temperature coefficient sensor that informs the semiautomatic automatic temperature control system of outside air temperature.
System low pressure protection.
Open circuit or short circuit of outdoor ambient temperature sensor t4.
The series o 4 outside air temperature sensors are great for monitoring ambient air temperatures in outdoor applications.
Out unit low side value temperature sensor t2b open circuit or short.
Outdoor ambient temperature sensor malfunction.
Outdoor coil temperature sensor is open or shorted sets temp to 20 f.
System high pressure protection.
The computer uses this input along with other in car temperature.
Outdoor discharge air temperature sensor.
Indoor coil temperature sensor is open or shorted control board sets temp to 40 f.
Open or short circuit of outdoor ambient or condenser temperature sensor.
Outdoor fan speed has been out of control.
24 installation and maintenance service manual 14 18k.
The temperature sensors are mounted in a nema 4x enclosure with integral mounting tabs.
Temperature protection of.
Cooling oil return cycle.
Outdoor mid coil temperature sensor malfunction.
Compressor discharge high temperature protection.
The mounting tabs can be used to surface or suspension mount the temperature sensors.
Fan speed out of control.
Open circuit or short circuit of compressor discharge temperature sensor t5.
