Fehlercodes: P20_ECOi_ME1

Alarm Code P20
Alarm meaning High load alarm
Alarm conditions The high pressure increase is not rapid but the alarm occurs when the horsepower down does not meet the anticipated time.
Probable cause
  1. Forgot to open the valve.
  2. Operation failure of mechanical valve
  3. Idle away of outdoor fan
Check Check the valve, mechanical valve and outdoor fan.