Fehlercodes: F06_F23_ECOi_ME1

Alarm Code F06, F23
Alarm meaning Gas temperature sensor trouble at outdoor heat exchanger 1; Gas temperature sensor trouble at outdoor heat exchanger 2.
Alarm conditions
  1. A/D step is 10 steps or less (short circuit).
  2. A/D step is 1014 steps or more (open circuit).
Probable cause
  1. Sensor malfunction (including connector)
  2. PCB malfunction 
Check
  1. Measure the sensor resistance. Check that the sensor is operating normally.
  2. Use a remote controller monitor or PC monitor to check the temperature that is recognized by the microcomputer.
Correction
Example
Notes