Recent content by tonyvat

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    Vaiilant combi-heater VCW sine 18 T3Wf h stop working

    Agile I assumed that if the rocker switch was switched away from the labelled instant heat option to the labelled immersion option then the boiler was in 'immersion mode' rather than 'instant heat mode'. That is of course if the boiler works when the switch is switched to the immersion mode...
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    Vaiilant combi-heater VCW sine 18 T3Wf h stop working

    Agile-when I said immersion mode I meant with the switch switched to immersion instead of instant heat. Bunny The pilot light is on and stays on at all times. 1. First of all the switch positions fired up the boiler from the pilot light except the switch when switched to instant heat...
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    Vaiilant combi-heater VCW sine 18 T3Wf h stop working

    Thanks The831Bunny. I neglected to mention that the instant hot water when switched on failed to work although when switched to immersion the boiler fired up and central heating also worked. Occasionally the immersion failed to work when switched on and occasionally the central heating when...
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    Vaiilant combi-heater VCW sine 18 T3Wf h stop working

    Central heating switch doesn't work. Red boiler switch lit and on. Nothing happens when switched to instant water or immersion either. no boiler firing up, no hot water from taps. Running taps does not prompt boiler to fire up? Is it the switch/circuit board or maybe something else?
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    Broken Inst. water switch/heating - vaillant vcw-sine18 T3WF

    Central heating switch works. Red boiler switch lit and on. But while Immersion/instant heat switch is switched to immersion the boiler fires up, however when this two way switch is switched to instant water nothing happens. no boiler firing up no hot water from taps. running taps does not...
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