If you have a pre-payment meter please check:
- that you have credit on your meter
- the water pressure in your boiler hasn’t dropped
If you have a ‘Vaillant Eco Tec’ or ‘Vaillant Sustain’ boiler it’s easy to fix:
https://www.youtube.com/watch?v=Pv-SMJQO6XE
If you are still unable to solve the problem please complete our repair form.