Your post does not really make much sense, but a common fault is that the diaphragm in the diverter assembly has failed. With the CH set to OFF, turn on the hot water at a tap and see if the pin is actually moving out towards and activating the microswitch on the diverter.
Tony the OP's boiler uses a drayton actuator (the same as a zone valve), does the demand light come on when you call for h/w ? does the pump run ?
Hi, I think you are talking about an other boiler, the diverter valve is motorist valve there is no diaphragm or micro switch, my post was very clear no 240V at the motor when DHW is on but the boiler fire OK the rads get hot and no hot water
OP download the MI & run through the dhw fault finding guide, of course as Tony has rightly pointed out, do not do any of this work if you have to access any of the combustion or gas side of any appliance if you are not GSR
http://www.worcester-bosch.co.uk/in...discontinued-february-1997-literature[/QUOTE]
Thanks CBF for the information, I have seen the fault finding chart but it does not show any voltage test around the diverter valve, I believe is the PCB but I just wanted to be sure of that, any other component out side the PCB might cause the diverter valve relay to fail or what.
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