Hi,
We have a Vaillant ecoTEC boiler 424 (open vented).
When we turn on the heating or hot water, it works perfectly. It can run for hours with no problem.
However, every now and then (seems to happen at least one per day) the boiler tries to turn on by itself (anti-seize maybe?). When it does this, it shuts off and gives an F.83 error.
Often this happens during the night, so when we come down in the morning the F.83 error is showing.
Can anyone help explain why this is happening and how we might be able to fix it?
Thanks!
We have a Vaillant ecoTEC boiler 424 (open vented).
When we turn on the heating or hot water, it works perfectly. It can run for hours with no problem.
However, every now and then (seems to happen at least one per day) the boiler tries to turn on by itself (anti-seize maybe?). When it does this, it shuts off and gives an F.83 error.
Often this happens during the night, so when we come down in the morning the F.83 error is showing.
Can anyone help explain why this is happening and how we might be able to fix it?
Thanks!