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WATTS
works correctly but its output is not activated even if room
temperature is below pre-set value.
Sensor symbol
Symbols
and
are flashing.
Upper floor limit is activated; heating is off
to avoid damage because floor
temperature exceeded upper limit.
No message or symbol is displayed.
Thermostat makes use
of “PWM”
regulation; it may switch off heating (by
cycle) even if temperature is lower than
pre-set temperature.
WATTS
works correctly but heating is not working
Output
- Check connection.
- Check power supply for heating element.
- Contact installer of the device.
WATTS
works correctly but room temperature never complies
with the program.
Program
- Check the clock.
- Is the difference between Comfort and
Reduced temperature too wide?
- Are program steps too short?
- Contact installer of the device to check
and adjust setup elements to suit your
heating system.
