DeDietrich Alezio MIV-4 AWHP 11 MR-2, Руководство пользователя

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Tab.23 List of errors
Code Message Description Check
E39 LOCK-
DOWN IN­
PUT
The BL input opened for a
short period of time
Contact the professional responsible for maintenance of the heat pump
E53 SYSTEM
FLOW
LOCK-
DOWN
Heating water flow rate too
low
Contact the professional responsible for maintenance of the heat pump
8.1.2 PCB error codes on the PCB + sensor kit for circuits with
mixing valve
An error code is a temporary boiler status, resulting from the detection of
an anomaly.
The control panel attempts automatic restart of the boiler until it ignites.
Tab.24 List of error codes
Error code Message Description
B00 PARAMETER ERROR Bad configuration of the PCB parameters
B17 CONFIGURATION
ERROR
Boiler not configured: the CU PCB has been changed
B18 PSU Memory error:
Software change (software number or version parameter inconsistent with the mem­
ory)
B19 WAITING FOR
CONFIGURATION
NUMBER
Boiler not configured: the CU PCB has been changed
B25 SENS T OUTSIDE
CLOSED
SENS T OUTSIDE
OPEN
No outside sensor:
Bad connection:
Check the wiring between the CU PCB and the sensor
Check whether the outside sensor has been correctly fitted
Sensor failure:
Check the Ohmic value of the sensor
Replace the sensor if necessary
B27 SENS DHW OPEN
SENS DHW CLOSED
No domestic hot water sensor:
Bad connection:
Check the wiring between the CU PCB and the sensor
Check that the sensor has been correctly fitted
Sensor failure:
Check the Ohmic value of the sensor
Replace the sensor if necessary
B28 RESET IN PROGRESS Reset under way
B33 SENS T FLOW OPEN Boiler flow sensor on an open circuit:
Bad sensor connection:
Check the wiring between the CU PCB and the sensor
Check that the sensor has been correctly fitted
Sensor failure:
Check the Ohmic value of the sensor
Replace the sensor if necessary
B100 FUNCTION
UNAVAILABLE
Function not available in the control system:
Bad parameter setting
8 Troubleshooting
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