Faulty actuator or valve?

[deanomix]

Hi all,

New member (and novice!) but have a temperamental problem with my Drayton MA1 3-way actuator. It’s recently started sticking on the hot water and I need to lift the actuator off the valve for it to switch over to CH. Once it switches back to HW I put it back onto the valve and it works for a while (switches freely between HW and CH) but then eventually the same problem occurs and I have to run the manual process again.

Is the actuator faulty (which I think I could change myself) or does the valve need replacing? Any advice is greatly appreciated.

 

[Jeff Handy]

What appliance and brand and model is this on?

 

[deanomix]

What appliance and brand and model is this on?

Sorry, not quite sure what you mean so I’ve attached a couple of photos which will hopefully help.
The actuator is a Drayton mid position MA1.

 

[Jeff Handy]

You are in England, most members on here are from North America, but maybe someone will recognize that setup.

 

[deanomix]

You are in England, most members on here are from North America, but maybe someone will recognize that setup.

Ah, apologies. I thought I was on a UK forum but must have got redirected somewhere along the way.