11 Troubleshooting and Maintenance
Fehlercode auf
dem Display
Problem
Lösung
Low Battery
Battery output
too low
Adjustment range
too small
F1
Valve drive
sluggish
Check installa-
tion,check the
heating valve
F2
Actuating range
too wide
Please check
the fastening
of the radiator
thermostat
F3
Adjustment range
too small
Please check
whether the valve
pin is stuck
12 Technical Data
Supply voltage
2 x 1.5 V AA
Valve travel
5 mm (±0.3 mm)
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