Accessing The Error Memory; Troubleshooting - DeDietrich MIV-4S AWHP 6 MR-3 User Manual

9 Troubleshooting

9.2

Accessing the error memory

Fig.51
MW-2000369-1
Fig.52
Fig.53
Fig.54
9.3 Troubleshooting
Problems Probable causes
The radiators are cold. The heating set point tem­
perature is too low.
The heating mode is deac­
tivated.
The radiator valves are
closed.
The heat pump is not op­
erating.
The water pressure is too
low (< 1 bar).
48 MIV-4S
The error and fault codes are listed together in the memory.
1. Access the menus by pressing the two keys on the right simultane­
ously.
2. Select the Malfunction menu
3. Select the PCB by pressing the
Confirm the PCB selection by pressing the
appears.
Important
The Er:xxx parameter flashes. 000 corresponds to the number of
stored errors.
4. Go to the error details by pressing the
5. Scroll through the errors by pressing the
menu opens, the row of the error in the memory appears briefly. The
PCB name appears. Go back to the error list by pressing the
key.
Important
The errors are stored from the most recent to the oldest.
6. Go back to the Er:xxx display by pressing the
key: the CLR parameter flashes after the errors. 000 corresponds to
the PCB selected.
Clear the error memory by pressing the
7. Exit the Malfunctions menu by pressing the
Corrections
Increase the value of parameter
ted, increase the temperature on it.
Activate the heating mode.
Open the valves on all radiators connected to the heating system.
Check that the heat pump is switched on.
Check the fuses and switches on the electrical installation.
Top up the system with water.
by pressing the key.
or key. The icon appears.
key: the PCB name
key.
or key. When this

key. Press the
key.

key.
or, if a room thermostat is connec­
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