I've got a Vaillant Turbomax Plus 837e.
Lately it's had a few instances where it just doesn't deliver hot water. Possibly happens once a week, I press the 'reset' button, the boiler restarts and all is well.
However, this morning it's worse. A reset doesn't help. If I turn the mains power off for 10 minutes, it seems to work briefly, but soon gives up again.
The green light is flashing, I hear the fan start, followed by a 'click', but that's as far as it gets. No error codes that I can see.
I'm know I'm going to have to call a heating engineer, but it'd be nice to have a bit of a head-start.
Any help appreciated.
Lately it's had a few instances where it just doesn't deliver hot water. Possibly happens once a week, I press the 'reset' button, the boiler restarts and all is well.
However, this morning it's worse. A reset doesn't help. If I turn the mains power off for 10 minutes, it seems to work briefly, but soon gives up again.
The green light is flashing, I hear the fan start, followed by a 'click', but that's as far as it gets. No error codes that I can see.
I'm know I'm going to have to call a heating engineer, but it'd be nice to have a bit of a head-start.
Any help appreciated.
