boiler control

Hi, I’ve just purchased a nest gen 3 to replace by heating controls and just wanted reassurance/guidance with the wiring before I go ahead as I don’t want too fry my boiler pcb etc. I currently have a glow worm 18hxi boiler and a British gas programmer and a Honeywell thermostat that hasn’t...

Hi, I have a Logic 24 Combi boiler. I have started having issues with the heating a couple of days ago when I realised the CH was not heating the radiators as much as it used to. I thought this may have been down to the pressure and tried to increase it slightly because it was on 1 bar and im...

Hi, I am trying to replace a broken and now discontinued heatmiser rc1-w with a newer heatmiser from switch. I had to get a plumber out to diagnose, but he didn’t have the spare parts, so I said I’d wire in the replacement as it was just a case of putting the same wires back in the same...

Hi, I have just moved into a house a few months ago, there is a large Tribune II upstairs and a Flexicom 30SX down stairs, the pressure on the flexicom drops daily from around 1.4 to 0.5 and needs topping up regularly. I am now to the point I think there is a problem with the Tribune system as...

Hi, my old combi boiler's programmer is on the boiler it self. The boiler sits in the loft room so not very convenient to access. Is it possible to install a modern digital programmer which can be wired in to the existing boiler control panel? Does it require an expert service or can be done DIY?

I am having a problem with my boiler, an Ideal Minimiser SE. The boiler fires up and the burner light switches on, but after x amount of time (sometimes immediately, sometimes after like 10 minutes) the burner switches off, the water pump however is still going. It does this before the house...

I have Drayton 2 channel programmer, for a while the clock would come on for the hot water but the boiler would not start up. Discovered if we switched the heating on and then off on the timer the boiler would start up and heat the water and go off with the timer. Since the temperature has...

Hi, 1st post and I'm a bit of an amatuer (can do basic wiring) so be gentle... Basically I need to wire a 3rd generation Nest Heatlink to a Vaillant EcoTEC 937. Could someone please relate the Nest instructions to the boiler wiring diagram for me? I'm not sure which Nest instructions I should...

Hello, We bought a house and in the kitchen, right next to the kitchen ceiling light switch there's an appliance switch (20A neon type) controlling the combi boiler installed upstairs in the bathroom. It's very confusing having 2 switches for 2 completely different things right next to each...

Hi all. I've got a potterton performa 24 boiler. Now the issue is the heating stays on. I turn the main switches to just hot water and the rads still get hot. I thought it was the diverter valve so replaced that but still the problem persists. I then replaced the timer clock (we don't have a...

Hi folks, I have looked for an answer to this but not come up with anything... maybe some experienced people will be able to advise. I am installing an 8-zone underfloor heating system, with a thermal actuator on each zone. I have a wiring centre that will open the relevant actuator when there...

Hi, I have a Vaillant Ecotec Pro with a simple 24 hour time switch. I'd like to replace this with a modern smart thermostat. Most of the articles I've read mention a c-wire. I'm struggling to work out if this boiler has one. I've got the wiring diagram and it's not at all clear. I'm not sure...

Hi. We have an issue that when the system controller is off, the boiler is still firing up and heating the hot water. Boiler is a Grant vortex Eco external 26-35. Controller is a danfoss with wireless thermostat. Grunfoss pump. All is about two years old. We had the plumber out recently and he...

Hello, I have a bit of a problem. I have a Vaillant boiler, which is great. The Timerswitch130 inside the boiler is terrible. I want to know if I can remove it completely [leaving the fascia exposed] and not replace it, and have the Honeywell control the boiler on its own. The reason I...