Troubleshooting; Error Messages; Error Codes - DeDietrich MIV-4S AWHP 6 MR-3 User Manual

9 Troubleshooting

9 Troubleshooting
9.1

Error messages

Fig.49
Fig.50
Tab.28 List of temporary error codes
Error Message
code
H00.17 DHW sensor Closed
H00.32 TOutside Open
H00.33 TOutside Closed
H00.47 HP flow sens removed
or below range
H00.48 THp Flow Closed
H00.51 THp Return Open
H00.52 THp Return Closed
H00.57 T DHW Top Open
H00.58 T DHW Top Closed
H02.00 Reset In Progress
H02.02 Wait Config Number
H02.03 Conf Error
H02.04 Parameter Error
H02.05 CSU CU mismatch
H02.07 Water Press Error
H02.09 Partial block
46 MIV-4S
Resetting the control panel allows the appliance to be restarted.
The message
the problem, pressing the
thus eradicates the fault.
If several faults occur, they are displayed one after the other.
1. Reset the control panel by pressing the
2. Display the current operating status by briefly pressing the
MW-5000060-3
9.1.1
An error code is a temporary status, resulting from the detection of a heat
pump anomaly. The control panel attempts automatic restart of the heat
pump until it switches on.
When one of the following codes is displayed and the heat pump cannot
restart automatically, contact a maintenance technician.
Description
Domestic Hot Water tank temperature sensor is either shorted or measures a
temperature above range
Outside temperature sensor is either removed or measures a temperature below range
Outside temperature sensor is either shorted or measures a temperature above range
Heat pump flow temperature sensor is either removed or measures a temperature
below range
Heat pump flow temperature sensor is either shorted or measures a temperature
above range
Heat pump return temperature sensor is either removed or measures a temperature
below range
Heat pump return temperature sensor is either shorted or measures a temperature
above range
Domestic Hot Water top temperature sensor is either removed or measures a
temperature below range
Domestic Hot Water top temperature sensor is either shorted or measures a
temperature above range
Reset In Progress
Waiting For Configuration Number
Configuration Error
Parameter Error
CSU does not match CU type
Water Pressure Error active
Check the hydraulic pressure in the heating circuit.
Partial blocking of the device recognized
BL input on the central unit PCB terminal block open
appears when a fault code is detected. After resolving
when an error message is displayed.
In economy mode, the appliance will not run a domestic hot water
heating cycle after a central heating cycle.

Error codes

key resets the appliance's functions and
key for 3 seconds,
7682850 - v02 - 09012018
key.