Channel 4 & 5 - Outside Temperature Sensors

Channels 4 and 5 check the two outside temperature sensors.
Channel 4 = sensor in plenum
Channel 5 = sensor in front of radiator


To activate the display:





- If necessary, briefly press the OFF button while pressing the OUTSIDE TEMP button.
- Press the WARMER button until the display reads '04 or '05
- Press the COOLER button to the numerical value of the sensor


Note: Since both sensors are the same, the following chart applies to both.

Code/Resistance Tables:

Code/Resistance Chart






Display reading if open or shorted.