Heating sometimes Drayton Zone Value Actuator
Discussion
Hi,
Over last couple of years sometimes my boiler keeps running even when the thermostat hit the required temp, sorted it by turning off the boiler at mains then would work fine for a while then happen again.
I have one of these Drayton Zone actuator https://www.screwfix.com/p/drayton-zone-replacemen... I had a plumber out last year and was quoted circa £360 to replace the value and actuator, drain down the system etc. The Drayton Zone actuator though is clip on so you can actually buy the bit that switches the value on its own https://www.screwfix.com/p/drayton-zone-replacemen... for £50 though with the value itself its actually only a few quid more. Anyone experienced with these Drayton actuators and is it usually the micro switch that is the issue, rather than the valve its opening and closing in the pipe ?
I'm thinking of just trying to replace the actuator first see if that sorts it, is they anything I need to be aware of when swapping it ie what position does the value need to be etc ? Or should I just cut my loses and get new Honeywell fitted completely including the pipe bit so will need the system drained etc ?
thanks
Over last couple of years sometimes my boiler keeps running even when the thermostat hit the required temp, sorted it by turning off the boiler at mains then would work fine for a while then happen again.
I have one of these Drayton Zone actuator https://www.screwfix.com/p/drayton-zone-replacemen... I had a plumber out last year and was quoted circa £360 to replace the value and actuator, drain down the system etc. The Drayton Zone actuator though is clip on so you can actually buy the bit that switches the value on its own https://www.screwfix.com/p/drayton-zone-replacemen... for £50 though with the value itself its actually only a few quid more. Anyone experienced with these Drayton actuators and is it usually the micro switch that is the issue, rather than the valve its opening and closing in the pipe ?
I'm thinking of just trying to replace the actuator first see if that sorts it, is they anything I need to be aware of when swapping it ie what position does the value need to be etc ? Or should I just cut my loses and get new Honeywell fitted completely including the pipe bit so will need the system drained etc ?
thanks
xstian said:
Turn the power off and take the plastic cover off the valve. I bet you find a spring rattling loose around in there. The return spring on these is mounted on a small plastic post that snaps off. Where the post has snapped off there is a hole behind it, just remount the spring into this hole. I've fixed loads of theses that way.
Cheers I will have a look.Thanks I was just going to buy a new actuactor and connect that up, looking online they seem to sell for £33-£50. I had a look at my actuator today though and it looks a bit different to the ones for sale, mine says MA1 on in it but has a switch on the side with H M W the ones online I see just have nbrs 1 2 on side, mine also looks bigger, picture below. Can I replace with a screwfix one ?
The code in the pic that you cant read is 6721251 googled that and cant find it.
The code in the pic that you cant read is 6721251 googled that and cant find it.
Cranked said:
Yeah thats it, its actually cheaper if you buy it with the valve £65. I ordered from directheatingsupplies was £33 plus delivery £39 in total, hopefully it will come through ok.Cheers
Gassing Station | Homes, Gardens and DIY | Top of Page | What's New | My Stuff