Code no.
Description
Checking / solution
B40
Measurement error on the domestic hot water
temperature sensors.
Remarks:
4
This message is only displayed on initial
commissioning.
4
This message disappears after 10 minutes or
when you press the
B
key.
4
Contact the professional who takes care of
maintenance of the appliance.
Err BuS
No communication between the control panel and the
PCU board.
4
Contact the professional who takes care of
maintenance of the appliance.
InIt12
No communication between the control panel and the
PCU board.
4
Contact the professional who takes care of
maintenance of the appliance.
OPt
Activation of optimised mode.
4
The domestic hot water tank is filled by optimal
use of the heat pump and the hydraulic BOOS..
If the causes of the problem are still present after several attempts at
automatic start-up, the appliance goes into lockdown mode (also
called failure).
¼
see chapter: "Messages (type code
EXX
)", page 29
7.1.2.
Messages (type code
EXX
)
1. The display shows :
- The symbol
(!)
- The symbol
V
- The fault code (for example
E02
).
2. After correcting the failure, press the
V
key for 2 seconds. If
the error code continues to display, search for the cause in the
error table and apply the solution.
Code no. Description
Checking / solution
E00
The parameter storage unit on the PCU electronic board is
defective
4
Contact the professional who takes care of
maintenance of the appliance.
E01
The middle DHW temperature sensor is short circuited
Note: DHW production is not covered
4
Contact the professional who takes care of
maintenance of the appliance.
E02
The middle DHW temperature sensor is open
Note: DHW production is not covered
4
Contact the professional who takes care of
maintenance of the appliance.
E04
The room temperature sensor is short circuited
Note: DHW production is handled by back-up if back-up enabled
4
Contact the professional who takes care of
maintenance of the appliance.
E05
The room temperature sensor is open
Note: DHW production is handled by back-up if back-up enabled
4
Contact the professional who takes care of
maintenance of the appliance.
E06
The evaporator temperature sensor is short circuited
Note: DHW production is handled by back-up if back-up enabled
4
Contact the professional who takes care of
maintenance of the appliance.
E07
The evaporator temperature sensor is open
Note: DHW production is handled by back-up if back-up enabled
4
Contact the professional who takes care of
maintenance of the appliance.
C003212-B
2"
1
4
3
4
1
2
MENU
MODE
7. Troubleshooting
TWH 200E TWH 300E TWH 300EH
29
01/12/2015 - 7605313-001-07
