Wijas POW 12, Инструкция по сборке и эксплуатации, Страница: 6 / 12

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Pict. 5. Control valve with a filter
1. Control valve knob
(position: flow closed)
2. Valve plug
3. Mesh filter
Mulfunctioning of the heater
Removing the given below causes of mulfunctioning of the heater is not included in manu-
facturer’s warranty. In case when none of the causes occurs, please contact a service point.
Display does not light:
- not connected belt cable connecting driver plate with the display (pict. 2)
- defect of the power supply installation of the heater.
Too low water flow:
- blocked water filter
- too low water pressure
- control valve closed too much
- not fully opened main valve. The heater does not heat or barely heats.
- wrong hydraulic assembly, defect of the electric installation powering the heater
The heater does not heat water to the set temperature:
- too large drop of mains voltage after turning on of the heater.
- too large flow of water (see point “Use”).