I have a Vaillant turbomax plus 828e approx 9 years old.
The problem I am experiencing is on the hot water side, when hot is requested the boiler fires up no problem, the temperature of the water is initially good. Then the water goes luke warm, then hot ,then luke warm......this continues!
I have watched the burner and can see it ignite for approx 5 secs then go off then re-ignite and so on!
When in central heating mode there is no such problem.
Just recently the boiler stopped working but did not go into lock out, the green warm start LED was flashing and the boiler does nothing with either hot water or central heating!
I managed to resolve this by removing the pipes for the air pressure switch and sucking/blowing down them (advice given). The boiler then started working again!
Unfortunately this keeps happening.
Having reviewed some of the problems and comments on this site, it certainly seems to be one of the better ones!
Any advice would be greatfully received.
The problem I am experiencing is on the hot water side, when hot is requested the boiler fires up no problem, the temperature of the water is initially good. Then the water goes luke warm, then hot ,then luke warm......this continues!
I have watched the burner and can see it ignite for approx 5 secs then go off then re-ignite and so on!
When in central heating mode there is no such problem.
Just recently the boiler stopped working but did not go into lock out, the green warm start LED was flashing and the boiler does nothing with either hot water or central heating!
I managed to resolve this by removing the pipes for the air pressure switch and sucking/blowing down them (advice given). The boiler then started working again!
Unfortunately this keeps happening.
Having reviewed some of the problems and comments on this site, it certainly seems to be one of the better ones!
Any advice would be greatfully received.