Hi! I am having an issue with my hot water on a Vaillant VCW 242 EH boiler. The shower has started suddenly going cold. I can see what is happening and wonder if someone can point me in the right direction!
When the hot water is switched on the microswitch on the water section is activated and the diverter valve is pushed outwards and we have hot water. However, if someone draws water on our system (unfortunately it is also shared with next door) the water pressure can drop enough to turn the boiler off! HOWEVER, when the pressure comes back, the microswitch on the water section is reactivated, so the boiler is running, however, the diverter then goes into CH mode and the hot water goes to the radiators.
Is the problem here likely to be in the servo valve OR will it be in the water section (the microswitch is working fine)???
Thanks!
Phil
When the hot water is switched on the microswitch on the water section is activated and the diverter valve is pushed outwards and we have hot water. However, if someone draws water on our system (unfortunately it is also shared with next door) the water pressure can drop enough to turn the boiler off! HOWEVER, when the pressure comes back, the microswitch on the water section is reactivated, so the boiler is running, however, the diverter then goes into CH mode and the hot water goes to the radiators.
Is the problem here likely to be in the servo valve OR will it be in the water section (the microswitch is working fine)???
Thanks!
Phil