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I have just replaced a BGMVSP-23 actuator with a Drayton MA1 following advise on this forum. I wired up the new unit exactly the same and all appeared well. However when the system comes on now, the 'A' switches straight to CH even if I have the CH off on control panel! The only way I can get...

I have a faulty BGMVSP-23 actuator and have read that I can replace it with a Drayton MA1 without having to worry about different wiring. Problem is there are two models shown on Screwfix, both are shown as MA1. The 1st one is described as a Drayton Mid Position Valve Actuator & on the...

Can anyone please advise on a recent problem with my actuator. When my heating was switch on for the first cold spell this winter, there was a loud clunking noise vibrating through the system. When I checked the sound source, I noticed that the Actuator had been dislodged. As I attempted to slot...

I have recently decided to rely on our immersion heater during the summer for hot water, considering it to be cheaper than using central heating system. I soon realised that the thermostat was not working! Is it a simple job to replace? The thermostat is probably 25 years old and made by...