I have a Vaillant ECOmax 828.
Recently it has been firing up during the night despite the timer being off and now it doesn't want to shut down on the timer. It just keeps trying to start up again, fails to start and keeps trying again.
I've now left it on permanently and control it from the thermostat without any problem.
Does this prove that the Time Clock is faulty? I've had a look at it and feel confident I can fit a new clock myself.
Recently it has been firing up during the night despite the timer being off and now it doesn't want to shut down on the timer. It just keeps trying to start up again, fails to start and keeps trying again.
I've now left it on permanently and control it from the thermostat without any problem.
Does this prove that the Time Clock is faulty? I've had a look at it and feel confident I can fit a new clock myself.