Fehlercodes: E20_Mini_ECOi

No Indoor Units Error

1. Error Detection Method

It is judged an error if an indoor unit cannot be recognized at the start of auto address setting or when the outdoor unit is turned on.

  • The address(es) of indoor unit(s) are not assigned correctly.
  • The indoor unit is not turned on.

2. Error Diagnosis

Indoor Unit 
1-1 Are the address(es) of indoor unit(s) assigned correctly? Yes 1-2
No Set its address
1-2 Are the indoor units turned on? Yes 1-3
No Power on
1-3 The indoor/outdoor control line may be disconnected somewhere between the indoor unit(s) and the outdoor unit. Check and make sure the indoor/outdoor control line is connected.