6 Maintenance
6.1 Troubleshooting
Display Meaning Possible elimination
Measuring
temperature of
internal/external
sensor exceeded
Internal sensor/room sensor
• Remove external heat sources in the
direct environment and wait until
the sensor has cooled down again.
• Reposition the room sensor if
necessary.
• Have the room thermostat/room
sensor checked and replaced if
necessary.
Floor sensor
• Have the floor sensor checked and
replaced if necessary.
0004 Malfunction in
external sensor
(room/floor
sensor)
• No external sensor connected.
• Reset to the factory settings.
• Deactivate the external sensor in the
Service menu under parameter 040.
• Have the external checked and
replaced if necessary.
0010 Malfunction in
internal sensor
• Reset to the factory settings.
• Have the room thermostat checked
and replaced if necessary.
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