Search results

I have got basic controls not specific to vaillant The timer is "honeywell central heating timer st6400c1003" like below image The thermostat is "Honeywell manual thermostat" like below image: It has a 3 port valve from Corgi Grundfos pump set at highest pump settings All the radiators...

It's "ecotech plus 418" and I can access the d menu. Looking at the the flow (d.40) and return (d.41) temperature, there seems to be the difference of 12c

Hi, I have a vaillant system boiler of 18kwh size and even after it's on for more than an hour, the flow temperature shown on the front panel is at around 48c with gas burning very slowly whilst whole house is cold. Every few minutes (not timed the interval), gas burning intensity increases...

Hi, My bedroom radiator makes lound tick tick noise whenever heating is turned on and then it does it at intermittent intervals which match with the modulation happening on the boiler i.e. when boiler start firing up at higer pace making flow temperature to reach near cut off point and then...

Thanks, Attached is the picture of wiring center. It's in the loft so I can only make a good guess by looking at the wiring thickness that the room thermostat wire is slightly thinner than the others. Brown wire from Thermostat terminal 1 is already attached to terminal 4 in wiring center and...

@RandomGrinch @CBW I spoke to Heatmiser support today about some of the features and what they actually suggested to go with the wired thermostat to control HW (called NeoStat HW V2) and a separate wired thermostat for CH (called NeoStat v2) , both of which can connect to a wireless headphones...

Thanks.. really helpful

Thankyou very much for your kind response. It does give me confidence to order the product and go with the installation. I suppose the old thermostat (set to highest temperature) will be overridden with whatever the wireless thermostat will tell the controller. So if timer is on and wireless...

Thank you very much for your quick and detailed response. It looks like the old controller doesn't have earth coming in so hopefully that's not a problem? I'll put brown or red tape on the green yellow cable to mark it appropriately. Anyhow, during renovation, all this will be replaced so...

Just read your reply after posting mine. I am happy to leave old thermostat with turned to max settings. Attached is the picture of existing controller and neoHub Hw mini diagram. I have Y plan though instead of S plan shown in the neohub diagram but guess it won't make a difference.

I think you are right. Looking again at the product compatibility, both are actually wireless thermostats. I don't know why they have Slimline RF wireless and NeoAir wireless thermostats.. can't understand the difference other then the compatibility.. they have so many products to choose from...

Oh is it. I thought option 2 is wired thermostat which talks to RF controller wirelessly. I am not newby with diy or electric as such but never fiddled with 10way junction or CH electrical. Is there some sort of info that can precisely tell me which wires to alter as I can't see enough info...

Hi, I have a Honeywell timer and room thermostat with one zone for CH and one for HW under Y plan mid position valve. I am looking to replace it with Heatmiser control so that I can control the heating and hot water remotely and use the geo location feature that turns off CH if no one is...

Hi, We moved into a new home where there's already a security alarm installed. However the previous owner had died and there's no info whatsoever regarding the alarm so wondering how can we reset the code to make it work again. Attached are the two pictures of the alarm. I cannot see any other...

How much inhibitor will be needed for 3br bungalow when whole pipe work is drained 3 times meaning not much inhibitor left in the system? The sentinel 100 rapid dose is costing £25 for 300ml whereas a standard 1L bottle is just for £15. So if I need at least a litre in it, I'd be looking £75...

Any reason why would there be pressure in the rad if both valves are closed and some water is taken out of rad by temporarily loosening the valve nut to drain a litre of water?

When plumber opened it last time to clean, rubber was found broken and it started dripping so he used PTFE and jointing compound to seal it since he couldn't find seal locally and can't wait for 2-3 days for it to arrive online. He told me that it cannot be opened now because we'd be replacing...

Thank you all for the useful replies. I'll use the Rapid dose after draining the radiator a bit to allow enough inhibitor in. It's slightly more expensive but given only to be done once in a while, it's less fiddly than other useful methods like syringe and tube etc.

Forgot to say it's a sealed unvented central heating system with no f&e tank. It has red expansion vessel.

Hi, I have old style radiators where there only a small bleeding nut on top of radiators and the bathroom doesn't have towel rails either. The magnaflow filter is sealed with jointing compound to avoid leak from the sealing rubber so I can't open it without replacing the whole unit Attached is...