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- 20 Jul 2016
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Hi all,
My boiler (Valiant Combi-Heater VCW T3W) has been working fine until about 2 weeks ago when it shut down half way through my morning shower (
!), we then went on holiday for 2 weeks and have now arrived home to the prospect of freezing cold showers. The pilot light was still lit but it wouldn't fire up for either hot water or heating. I called a gas engineer out who wasn't particularly interested in fixing the old boiler and instead wanted to charge me £2k for a new unit (which I can't currently afford). His vague diagnosis of the fault was that he thought both the motherboard and flame supervision pcb's had blown, but in my electrical experience it is unusual for 2 out of 3 (according to said gas engineer) separate pcb's to fail at the same time.
Here's what's happening: pilot light is lit and reignites if you switch it off and back on again. Turning on the heating does nothing (there is power to the hard wired control unit and there is no thermostat other than on the boiler itself) whereas when turning on the hot water you can hear a click and the sound of running water through the pump (doesn't sound like the pump is running though). There is no rush of gas and thus the boiler is not firing up.
My question is this: does it sound like replacing any of the PCBs would fix this issue, or is there anything else I can check? Like most folk I'd like to get it fixed for next to nowt and I'm quite happy to do whatever I'm legally allowed to myself. Any help much appreciated!
My boiler (Valiant Combi-Heater VCW T3W) has been working fine until about 2 weeks ago when it shut down half way through my morning shower (
Here's what's happening: pilot light is lit and reignites if you switch it off and back on again. Turning on the heating does nothing (there is power to the hard wired control unit and there is no thermostat other than on the boiler itself) whereas when turning on the hot water you can hear a click and the sound of running water through the pump (doesn't sound like the pump is running though). There is no rush of gas and thus the boiler is not firing up.
My question is this: does it sound like replacing any of the PCBs would fix this issue, or is there anything else I can check? Like most folk I'd like to get it fixed for next to nowt and I'm quite happy to do whatever I'm legally allowed to myself. Any help much appreciated!