Pcb Error Codes On The Pcb + Sensor Kit For Circuits With Mixing Valve - DeDietrich AWHP 4 MR User Manual

Tab.23 List of errors
Code Message Description
E39 LOCK- The BL input opened for a
DOWN IN­ short period of time
PUT
E53 SYSTEM Heating water flow rate too
FLOW low
LOCK-
DOWN
Tab.24 List of error codes
Error code Message
B00 PARAMETER ERROR
B17 CONFIGURATION
ERROR
B18 PSU
B19 WAITING FOR
CONFIGURATION
NUMBER
B25 SENS T OUTSIDE
CLOSED
SENS T OUTSIDE
OPEN
B27 SENS DHW OPEN
SENS DHW CLOSED
B28 RESET IN PROGRESS
B33 SENS T FLOW OPEN
B100 FUNCTION
UNAVAILABLE
7623755 - v02 - 03072015
Check
Contact the professional responsible for maintenance of the heat pump
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.
Description
Bad configuration of the PCB parameters
Boiler not configured: the CU PCB has been changed
Memory error:
Software change (software number or version parameter inconsistent with the mem­
ory)
Boiler not configured: the CU PCB has been changed
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
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
Reset under way
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
Function not available in the control system:
Bad parameter setting
8 Troubleshooting
MIV-4 47