It does it on both the heating and water. The system is due a service and I have booked one in for this weekend for the whole system.
Forgive me for not being too technical I am not an engineer of any sort just a mere female from Durham so it was nice that a Yorkshire man replied to this plea...
New to this site, but could do with help with my boiler !
My boiler is not switching on and staying on.It started about a week ago and I looked at the lights on the front panel. The bottom indicator neon is flashing every second, so after consulting the alpha helpline they said it was a...