Fehlercodes: E25_ECOi_MF1

Alarm Code E25
Alarm meaning Outdoor unit address setting failure (duplication) 
Alarm conditions Communication by outdoor unit main-sub control wiring was received that contained the same address as that unit 5 times or more within 3 minutes.
Probable cause The unit number is set incorrectly.
Check Check the unit number again.
Correction – 
Example
Notes Recovery from this alarm occurs automatically (when communication that contains the same address is not received for 3 minutes).