Daikin EKHBH054BA Manuel D'installation page 44

Error
code Failure cause
Failure of capacity setting
PJ
Refrigerant failure (due to
U0
refrigerant leak)
Main circuit voltage failure
U2
Communication failure
U4
Communication failure
U5
Communication failure
U7
Communication failure
UA
Installation manual
42
Corrective action
Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
EKHBH/X054BA
Indoor unit for air to water heat pump system
4PW54216-1