Fehlercodes: P03_Mini_ECOi

Compressor Discharge Temperature Error

1. Error Detection Method

When the discharge temperature is over 106°C.

2. Error Diagnosis

1
Adjustment to refrigerant charge
1-1 Not additional refrigerant charged Yes Additional refrigerant charge
No 2-2
1-2 Tends to have insufficient refrigerant charge in the system. Yes Adjust the refrigerant amount 
No Replace CR board

2
Blockage in refrigerant circuit

2-1

Service valve inside the outdoor unit closed Yes Open service valve
No 2-2

2-2

Are the tubes clogged? Yes Avoid clogging
No 2-3

2-3

Is the outdoor unit’s electronic control valve operating correctly? (Check for debris clogging the electronic control valve, a problem with the electronical coil and/or the control PC board.) Yes 2-4
No Replace the electronic control valve
2-4 Is it observable difference in status of the dew or frost between the strainer’s primary and secondary sides? Yes Replace the strainer
No Replace CR board