Fault indication by flashing code
Display
Cause
Required action
E1
Indoor unit probe air circulation defective
Contact specialist dealer
E2
Indoor unit probe frost protection defective
Contact specialist dealer
E4
Cooling mode: No cooling output after 30 minutes
Heating mode: No heating output after 30 minutes
Contact specialist dealer
E5
Cooling mode: Frost protection has responded
Heating mode: Overheating protection has tripped
Contact specialist dealer
E6
Bridge inner control cable interrupted
Check bridge plug
15