I've recently moved into a house which contains a Vaillant turbomax combi. System was installed 3 years ago. The heating and hot water have been working fine until today!! I've set the timer for the heating to come on at 5pm which it did, rooms all nice a warm, then at 6pm I noticed the heating had switched off, which it wasn't due to until 8:30pm. I've checked the system, the clock, hot water is fine, but not heating. There is a switch to have the heating on all the time, tried that, nothing.
Would welcome any help/advice.
Would welcome any help/advice.