hi, I have a 1991 worcester 350 combi that has developed an interesting fault, that I could do with some assistance to pinpoint to source.
After drawing hot water through the taps the boiler fails to return to central heating. The demand light remains on and the pump is running, but there's no ignition.
If the programmer is modified through "off/once/twice/on" then the central heating comes on straight away without any issues, but as soon as any hot water is taken it fails to re-ignite.
Thanks
After drawing hot water through the taps the boiler fails to return to central heating. The demand light remains on and the pump is running, but there's no ignition.
If the programmer is modified through "off/once/twice/on" then the central heating comes on straight away without any issues, but as soon as any hot water is taken it fails to re-ignite.
Thanks