I'm struggling to get constant hot water and CH. When i demand hot water it fires up fine but the flames which burn approx 50mm (2") high soon drop to a smaller size which isn't enough to keep the water flowing hot. I've noticed that as the flames jump from large to small and back again many times in just a few seconds and the Full sequence control device clicks in perfect time. I'm assuming i need to replace that part. This clicking sound has only started since having problems with the boiler. The central heating also struggles to get up to temp as the same thing is happening with the flames and control device.
Much appreciated if anyone can help.
Plumber has been called but (as always) he's flat out.
Much appreciated if anyone can help.
Plumber has been called but (as always) he's flat out.
