DE DIETRICH TWH 200E - TWH 300E - TWH 300EH - Manual (Page 26)

Code no. Description Checking / solution
B32 The impressed current anode is in open circuit.
4
Contact the professional who takes care of
maintenance of the appliance.
B33 The impressed current anode is short-circuited.
4
Contact the professional who takes care of
maintenance of the appliance.
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.
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).
¼see chapter: "Messages (type code EXX)", page 25
6.1.2. 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.
E08 Malfunction on the defrosting function
Note: DHW production is handled by back-up if back-up enabled
4 Contact the professional who takes care of
maintenance of the appliance.
E09 The low pressure pressure switch alarm sounds for more than
120 seconds
Note: DHW production is handled by back-up if back-up enabled
4
Contact the professional who takes care of
maintenance of the appliance.
E10 The low pressure pressure switch alarm has been tripped more
than 3 times during the last 24 hours
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
6. Troubleshooting TWH 200E TWH 300E TWH 300EH
25 03/02/2014 - 7605313-001-02