M
mike1952
I have a Glow-worm back boiler (9 yrs old). Recently had problem radiators not heating up. Have had new pump fitted and system power flushed. Boiler ignites on timer control but burners only stay lit for 30-90 seconds. Room stat set at 20, and is new. Over Xmas system worked OK and had hot rads and water, but New Years eve problem came back. Any suggestions ?