Installation manual
49
EKHBH/X008BB
Indoor unit for air to water heat pump system
4PW62570-1A – 01.2011
LC
Electric component failure
Contact your local dealer.
P1
PCB failure
Contact your local dealer.
P4
Electric component failure
Contact your local dealer.
PJ
Failure of capacity setting
Contact your local dealer.
U0
Refrigerant failure (due to
refrigerant leak)
Contact your local dealer.
U2
Main circuit voltage failure
Contact your local dealer.
U3
Underfloor heating screed
dry-out program has been
stopped by another error, or by
pushing operation off button, or
by power failure.
The error can only be reset in
the test mode as follows:
First, press the
z
button 4 times
so the
t
icon will be
displayed. Then press the
y
button 1 time. Finally push the
z
button to exit the test mode.
Notes:
• In this case [F-09] "Latest
action number executed" will
contain the latest action
number executed.
• [F-08] "Underfloor heating
screed dry-out program
enabled (1)/disabled (0)" is
always cleared to 0 (disable).
This means that in case a
second time a "Underfloor
heating screed dry-out
program" must be started,
[F-08] needs to be set again.
U4
Communication failure
Contact your local dealer.
U5
Communication failure
Contact your local dealer.
U7
Communication failure
Contact your local dealer.
UA
Communication failure
Contact your local dealer.
Error
code
Failure cause
Corrective action