Hi,
I've just returned from a 2 week holiday and my Vaillant TurboMax Combination boiler is not heating water. The status code is sometimes S.33 (Check Air/Flue System) but other times when I turn the hot water tap the boiler kicks on but the temp doesn't increase – it stays around 20C.
I've done several searches on this and other forums and found the Air Pressure switch to cause quite a few problems. The Diagnostic mode reports it as off (0) - Should this be on (1) ?
I've phoned Vaillant and they are asking £200 for a call out and some parts.
So my question is : Is there a simple fix. i.e. buy a new APS and fit it myself or do you think I should an engineer out ?
Thanks for your help
I've just returned from a 2 week holiday and my Vaillant TurboMax Combination boiler is not heating water. The status code is sometimes S.33 (Check Air/Flue System) but other times when I turn the hot water tap the boiler kicks on but the temp doesn't increase – it stays around 20C.
I've done several searches on this and other forums and found the Air Pressure switch to cause quite a few problems. The Diagnostic mode reports it as off (0) - Should this be on (1) ?
I've phoned Vaillant and they are asking £200 for a call out and some parts.
So my question is : Is there a simple fix. i.e. buy a new APS and fit it myself or do you think I should an engineer out ?
Thanks for your help