Valliant Turbomax combi boiler problems

3 Nov 2009
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United Kingdom
Hi All,

We have just bought a house and we have a Valliant turbomax combi boiler. This boiler hasn't been used for a few months, so I switched it on, and opened up the fill loop (both screws- half turn), but the pressure won't rise, and I end up with the low pressure error on the LCD.

Does anyone have any experience with these boilers?

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take the hose off and open slighty to see if any water comes out could be a faulty valve. then check to see if the valves under the boiler r open. next it could be abit of gunk in the low pressure sensor.

Try turning back 1 of the screws and fiddle with the second, if that doesn't help, reverse it. A lot of people only use one of the screws and leave the other constant open, so you may have closed the opened one.
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