GB
Fault Elimination
Diagnosis
Possible Cause/Remedy
Heating system is
- Apply/check supply voltage
not functioning:
- Check heating system
- Check sensor lead
- Check set temperature
- Check low-temperature setting
No indication in
- Apply/check supply voltage
the display:
- Check device
Thermostat 1080 U/
- Check settings for working
1080 UF switch too
and non-working days
early/late to high/low-
- Press RESET pushbutton,
temperature period:
then reset times
Summary of Contents for 1080U
Page 2: ...D Fig 1 Anschluss Heizung L N N ...
Page 3: ...D Fig 2 Anschlussbeispiel L N L N Last Fühler ...
Page 4: ...D Fig 3 Geräteübersicht A R C 1 2 3 4 5 6 1 2 3 7 6 5 4 ...
Page 24: ...GB Fig 1 Terminal connection Heating system L N N ...
Page 25: ...GB Fig 2 Connection example L N L N Load Sensor ...
Page 26: ...GB Fig 3 Device overview A R C 1 2 3 4 5 6 1 2 3 7 6 5 4 ...
Page 46: ...GB ...
