Hi,
I have Honeywell Valencia VT117 TRV with Hive Heads fitted, the TRV insert pins on a number of rads are sticking and I've tried differing lubricants to try and resolve the problem, but to no avail.
Do you know of a replacement insert, Honeywell have confirmed they don't sell the part...
Hello guys
Just installed a Viessmann Vitodens 100w and am struggling with the wiring (honeywell smartfit controller). Viessmann say you can just connect the mains power to the boiler, which I've done, and it works. However, there is no pump overrun this way. As soon as demand goes off, the...
Sorry if this is in the wrong section, can an admin please move it if necessary.
My multi fuel room heater/boiler has a Honeywell HCW80 thermostat paired to a R6660D receiver. I'm beginning to think the HCW80 is faulty.
It had lost it's pairing with the receiver due to dead batteries over the...
Honeywell 4043H1056 just installed to replace ESi which was leaking. HW is banging on closing whereas ESi didn't!! Both are power opening, spring closing. HW was installed in the same direction in the return pipework. Arrow points towards the tank. Is that correct? Need another to replace my 2nd...
just turned on my heating for the first time since last winter. the thermostat will not allow me to set a target temp above 9.5 degrees. it just cycles back to zero......help!
After x number of years, I looked at this valve as the water was very hot very quickly through the valves.
It was set to the white band which didn't look correct.
I unscrewed the screw to reset it. It fell out and revealed three loose parts
Screw, red cover, and black part with the numbers...
Hi guys just exploring a possibility
I’ve replaced a 3 port valve and it’s passing into the heating circuit when hot water is on. Could an electrical fault cause this problem? There is no call for heat on the heating circuit, proved with my multimeter. The heating pipe work next to the valve...
I have a System boiler with a programmable room stat and a still very common Honeywell ST699 basic programmer - ten years old. I know that this crosses over into an ‘electrical’ issue but would appreciate if anyone could tell me if anyone has seen this fault and if it shows shows it is faulty...
Hi All
Have a Honeywell CM67 Thermostat and Centaurplus C27.
Trying to turn the heating back on after summer and it's not working. The Honeywell seems to be working. I increase the temperature on manual mode for example and the little flame appears but the heating does not come on. Hot water...
Hi all, just after some advice I’m looking to replace my current thermostat with a nest system. It states that’s it’s compatible however wanted to check before purchasing and installing. My thermostat has 3 wires as shown in picture. Any help would be appreciated. Thanks
Hi there. I wondered if any of you pro’s have seen a strange fault that I’ve had with my Oil boiler.
Long story short, boiler failed to operate when requested. Not in lockout, had a quick check - I’m an industrial control electrician so handy with a meter - couldn’t find much wrong with...
I wonder if anyone can help with this...
One radiator circuit is constantly hot even though the room stats are not calling for heat. So the rad circuit is being fed with hot wat er from the manifold if (for example) the hot water cylinder is calling for heat.
I suspected a stuck valve so I...
I have an open-vent S-Plan CH system (22 radiators, 2 DHW cylinders and long pipe-runs) driven from a new 35KW Viessmann 100W WB1B boiler. When most TRVs were open, the Grundfos UPS2 15-50/60 pump was struggling to keep an adequate flow through the boiler (the latter modulated and cycled...
See pic. Current 3 port is a sunvic dm5601.
No grey wire on existing just orange, white, yellow, blue and earth?
Will a honeywell be able to be wired up here? I can't find a wiring guide for this model of sunvic.
G'Day fellers. Appreciate your help please:
When my boiler fires up it heats the water and radiators regardless of what is selected. I'm guessing that this means the valve is not moving from the de-energised position?
Its a Honeywell V4073A. The manual/auto lever moves freely both ways and...
Hi,
My Honeywell HCW80 relay unit is not lighting up at all when I press or hold the button. I believe this fault is causing my central heating to have stopped. Looking behind the cover, things look fine, but I'm no expert. What would be the best course of action here?
Picture of the relay unit...
Hi All
I have a Honeywell Evo home in my house. It's connected to an 11 year old Potterton Gold HE28 system boiler and unvented Cylinder.
The house is a solid brick house with a rear extension and loft .
5 bed , 4 bathrooms around 3000 square feet.
The rooms retain heat at different rates...
I live with my grandmother who had a new boiler installed, some years ago, on the government scheme. We were "lucky" enough to have one of these stats installed in the hallway (which I think is a silly place), and I have found it quite erratic at times. It is usually OK when the weather is...