actuator

I am trying to swap a danfoss icon thermostat that connect to my wiring center to another that has zigbee support. I tried t wire it up but at first it seems to power up although when trying to put LOAD as in starting to heat the wiring center doesn't detect anything and is not opening the...

Hi wondering if anyone can help we have 11 zones of under floor heating which are linked to 3 separate thermostats. the plumber is different to whoever laid the underfloor so he can’t figure out which actuator / wire links to which thermostat so at the moment each thermostat heats up the...

I have a vaillant ecotec plus 630 boiler. The hot water is not working correctly. Sometimes HW will come on when programmed but not always. HW does come on when the heating and hot water are both programmed to be on. HW is now coming on when the Heating is on but HW should be off. I can...

For last couple of weeks heating/radiators havent been turning off. Checked, and it seems one of the motorised valve actuators (Honeywell) is alway open. (No resistance on the little lever) The metal casing is very hot compared to the other 2 so an wondering if the motor is running constantly...

Ok so this is the third central heating actuator I've had to buy in 18 months. There's obviously something wrong with the valve. Checking it out it looks like the valve isn't turning in the same direction as the actuator or at least the slot the valve fits into is not in the same direction. Am...

Info: Worcester Greenstar Heatslave Drayton MA1 Mid Position Valve Actuator Summary: Had to replace the valve actuator as the old one was sticking. Wired up the new one with the same pinout as the original. Tested but got the following failed outcome; Off = DHW Water On = DHW Heating On = CH +...

Hi, So for the past week we've been hearing this loud constant clicking/motor-like noise throughout the house, and I've managed to track down the cause of said noise. It's a white box inside one of our un-used storage cupboards that says it's a Drayton Zone Valve ZA5 Actuator. The device...

Afternoon, First post on here but you all seem like a really helpful bunch, hoping to find the problem with my valve. When called for heating there is no movement in the motor, we put in a new one just incase and still nothing. I've measured the voltage across the points powering the motor...

Hi all, I have just replaced my actuator on my central heating system, but I'm unsure on the wiring. It has 5 wires. Blue, brown and green/yellow, which I fully understand and have connected to the live, neutral and earth ports on the junction. But it also has a grey and orange wire. The...

Hi My actuator is getting stuck on in the central heating position. This seems to happen when there is a demand for water heating at the same time - eventually the house warms up, the water never gets heated (as all the flow is to the central heating circuit) and so the central heating...

Hi all. I recently had a new boiler (glowworm energy 30c) fitted along with a nest thermostat. Everything seemed to work fine. I had a small incident early on whereby the CH stopped working. After a bit of investigation it turned out to be the motor had stopped working within the actuator on...

Hi, I've been looking into integrating my smartfit system with an evohome and I've quickly realised it's not possible. I'm going to have to replace my controls but I'd really rather not have to do any plumbing... With that in mind does anyone know of any suitable actuator heads I can use with...

Hello, I have a British Gas BGMVSP-2 two port valve (pictured) and although the actuator is working, there is a slight leak coming from the body. The leak is not from the compression nuts. Am I right in thinking that I can unclip the actuator and simply fit a new valve body like the one in the...

Ok I am a beginner so may not get the terminology right so apologies in advance(part of the battle with DIY is know what questions to ask(the other part is know who to ask)) but from reading other posts I think I am in the right place. So hope you can help me as the Title suggest I have and...

Hello, I am going to need to replace the two in my airing cupboard and I've been informed I have to replace them with Sunvics. I can't use other manufacturers as it would mean replacing the valves as well. Is that correct? I have an SZM1802 and an SZM1803. Thanks.

Hi, I have a fault on my boiler which is causing the Divert valve to continuously motor open/close with consequential impact on the CH and cycling hot/cold water when DHW demanded. I have found 240v is permanently on the CLOSE terminal on the divert valve, when CH is demanded 240v is applied...