Worcester Bosch 24CDi, switches off during HWD?

If people have the same prob... it was the DIVERTER VALVE, all sorted now, cheers, Bun,Rup.

Jeff
February 2009

hi Jeff mine seems to be doing exactly the same thing. Ive been led to believe that it is either the diverter valve or the heat exchange. either way it can be expensive and fiddelly.

rup
January 2009

Next time it happens get someone to watch the lights on the boiler.

If the hot water demand light stays ON, but the burner light (the little flame) goes OFF, then the boiler's diverter valve is staying where it should be, but the boiler is shutting off the burner for some reason.

This could be because the temperature on the main g/w heat exchanger is too high, or it could be that the sensor detecting this is faulty.

If the hot water light goes OFF, then look to the diverter valve. If the valve has failed, it won't stay pushed out and will switch the boiler off. If the switch itself has failed, this can do the same thing.

Hope this helps

Bunslinger
January 2009