my heatslave 15/19 is playing up its serviced every year and the boiler man said its a good boiler, anyway i now have no heating, the boiler fires up but the radiator dont get hot, hot water not a problem. can anyone help thanks
things to check
the dial on the front of the boiler is there a click as you turn it
if not replace it
is there 240 on the room stat going onto the pcb it is marked, top middle of the board if not your timer or room stat has gone
when you turn the heating dial on the front of the boiler does relay RL3 activate possible pcb.
and lastly is there 240 to black cable on diverter valve if yes then diverter valve has gone or brass wear seized
plumbbob, December 2010
Had exactly the same problem, with the same boiler, diverter valve was stuck on mine.
handyandy, November 2010
Same problem, if you find out let me know. I'll do likewise.