Search results

Yes, the manual lever presents some resistance to movement when the system is calling for heat. I am not able to check the wiring first hand at present, however, my recollection is: Mains power on brown lead to MV. Blue - neutral. Green = ground Grey and orange (microswitch...

Apologies re the previous post. I changed the complete M/V - actuator and valve.

No it doesn't. When operated manually, the microswitch actuator moves toward the microswitch but stops short.

Please advise. Central heating circuit functioning as normal. No hot water since microswitch in V4043 is not being closed by motor mechanism. Mains power to MV (brown lead) present , ie HW thermostat working corerctly. Boiler lights if M/V microswitch closed briefy manually. Installing...