Fehlercodes: E24_ECOi_MF1

Alarm Code E24
Alarm meaning Outdoor unit (INV) failed to receive communication from other outdoor unit (constant-speed). 
Alarm conditions After initial communications were completed, communications from an outdoor unit stopped.
Probable cause
  1. After initial communications were completed, the control wiring between main and sub outdoor units was cut.
  2. After initial communications were completed, the outdoor unit power was turned OFF.
Check
Correction – 
Example
Notes