Hi hoping for any assistance. Glowworm Boiler - LP241 Programmer with Y plan system.
Have checked Thermostat and pum, both working and replaced 3 way valve but still no fire up on the boiler when CH only selected.
Any ideas - could it be a faulty programmer even though Water working?
All help appreciated- thanks.
Have checked Thermostat and pum, both working and replaced 3 way valve but still no fire up on the boiler when CH only selected.
Any ideas - could it be a faulty programmer even though Water working?
All help appreciated- thanks.