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I have a Vaillant ecotec plus 831 (one with small circle buttons) and it has passed gas service not long ago. However, the problem I have is when there is a power cut, once the power has been restored, the boiler says 0c and will not heat water or radiators regardless of what (2 exceptions below). I have pressed reset (flame with line through it) countless times, but nothing.
Once, I got it working with a fluke, more than anything, as I had the gas cooker on cooking dinner, and ran the hot tap in the kitchen without thinking. I realized there was no hot water so pressed the reset button and within a minute or so I had hot water… However, this only worked that one time. Other time I left it for a few hours, and it came back on.
However, it sometimes can be left for many hours without any change, and boiler saying 0c.
Before I call a heating engineer out to see what can be done, I thought I would post on here to see if any of you have any idea what is going on with the boiler and hopefully, it is a very fast fix.
The area has had maybe 5/6 power cuts in the last few weeks (power people have the road dug up now near sub station now). Anyway, as this is a problem that has happened previous, I hope there is an easy cure.
I tried to look for any fault codes, but I can't ever find out how to get them, even by looking in the manual. The only one I have seen was S.0 and each time this was the only code I saw, even the 2 that did work in the end.
Once, I got it working with a fluke, more than anything, as I had the gas cooker on cooking dinner, and ran the hot tap in the kitchen without thinking. I realized there was no hot water so pressed the reset button and within a minute or so I had hot water… However, this only worked that one time. Other time I left it for a few hours, and it came back on.
However, it sometimes can be left for many hours without any change, and boiler saying 0c.
Before I call a heating engineer out to see what can be done, I thought I would post on here to see if any of you have any idea what is going on with the boiler and hopefully, it is a very fast fix.
The area has had maybe 5/6 power cuts in the last few weeks (power people have the road dug up now near sub station now). Anyway, as this is a problem that has happened previous, I hope there is an easy cure.
I tried to look for any fault codes, but I can't ever find out how to get them, even by looking in the manual. The only one I have seen was S.0 and each time this was the only code I saw, even the 2 that did work in the end.
