Hi,
just moved into a house with a Eurocombi SX20 MFFICE boiler.
The boiler is switched on at the mains, but will only light when the red neon on/off switch is kept pressed down. If the hot taps are turned on or the radiators call for heat without the switch being kept pressed down, nothing happens.
The switch won't stay in by itself.
Any thoughts...? Thanks very much