Recent content by muppethead

Stupidly forgot to add model details, thanks Kev. It's a Vaillant TurboMAx VUW 242 E . The digital timer is model number 253223. cheers, Gary

Hi, I have a working Vaillant timer that happily switches the boiler off and on once a day. However, the display part is broken so I can't see the settings etc and therefore can't change them. I bought a replacement and plonked it in (it's a very simple procedure) but the replacement caused the...