Fehlercodes: E26_ECOi_MF1

Alarm Code E26
Alarm meaning Mismatch in outdoor unit quantity
Alarm conditions After power initialization, the set outdoor unit quantity did not match the number of outdoor units detected on the outdoor unit main-sub control wiring for 3 minutes or longer.
Probable cause
  1. The outdoor unit quantity is set incorrectly.
  2. The outdoor unit main-sub control wiring is cut.
Check
  1. Check the outdoor unit quantity setting again.
  2. Check the outdoor unit main-sub control wiring.
Correction
  1. Correct the incorrect outdoor unit quantity setting.
  2. Repair the outdoor unit main-sub control wiring.
Example –
Notes Recovery from this alarm occurs automatically (when the set outdoor unit quantity matches the number of outdoor units detected on the outdoor unit main-sub control wiring).