central heating

Hi, can anyone please help? My old Satchwell LT25 room thermostat has 6 terminals 1-5 plus an Earth, but only has 3 wires, Brown to 3 Blue to 1 Yellow to Earth.. The Flomasta 2923G wired digital non programmable thermostat has: NO - Call. NC - Satisfied. COM /LIVE. What goes where please...

Hi I’ve got many fingers crossed in the hope that some of you good people can help me... It’s an ‘S’ system traditional gas boiler with a hot water tank and radiators, with two 2-port valves to separate the HW and CH parts of the system. I can use the programmer no problem to fire up either or...

Hi I've got a combi boiler with a British Gas WPT1 wireless thermostat and hive single channel receiver. I'm thinking about upgrading to a full hive system to be able to use the mobile app etc, so could anyone tell me, can I just buy the hive hub and continue using the BG WPT1 thermostat and...

This has been in the house from before I moved in 11 years ago. I've had some issues with it over the years, but generally it works ok. My current problem is that it is supposed to raise the temperature from what is displayed by pressing the Plus button. For the time period programmed in it...

Two Nest 3rd generation units (PDF) need to be installed for dual zone central heating (but not hot water) with one in the living room (zone 1) and one in the hallway for rest of property (zone 2). The combi boiler is an Ideal Logic 35 which is wired as follows: I have situated both Nest...

Hello One radiator in my house is always hot even when the TRV is turned to 0. If you turn it to 5 it is boiling. When the central heating is off then this radiator is cold. The rest of the radiators works as expected, i.e. if you turn the TRV to 0 it becomes cold. I've taken the TRV off and...

The pump in my system is behaving strangely. Normally it indicates that it is running at about 43W. Since Xmas morning, it has only been at about 18W. When it starts up, it goes up to 45 for a few seconds and then back down 3 or 4 times. Added to this, it worked perfectly for a time yesterday...

can anyone help i have no hot water I've tryed the valve moving little handle but not working i have the water tank in loft

Regarding: Clean sealed central heating system, powerflushed and inhibitor added a few years ago and system water still remains clear as tap water. Question: After cleanly installing a few brand new radiators with no flux, in reality is cleaner really required before fully flushing the system...

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...

Hi there, I have a 10-15 year old Worcester Combi Junior 24i that kettles only on Central Heating cold start. This winter is the first time it's started doing it. When it kettles, if I turn off the boiler via the thermostat for a few minutes then turn it back on again it runs no problem until...

Hi there, Second post in 11 years and boiler related... Couple of days ago I noticed the display on 7501 had gone off and heating permanently on, so went and got some more bats and was about to install when I noticed there was some corrosion residue. So I popped it of the wall and saw that...

Hi we’ve had a new wireless thermostat fitted to our combi boiler. we have it on manual temp mode and most of the day it appears to keep it within 2 or 3c of what we set. Not great but will do however in the evenings we will have it set to say 20c but the boiler just keeps firing the heating...

Hi all, Speccing some rads for a flat renovation and need to order rads ASAP as plumber just become available. On a budget but will pay where needed. I want to buy white column rads that are good value from somewhere I can easily return if needs be. Gathered quotes for the specs I need and I'm...

Hi all I'm moving into a new house, we got it for a bargain because it's in pretty poor condition. Floor plan Photos I'm not sure about the order in which we should do work to it. The 'essentials' that need doing are: -Rip up the carpet and restore wooden floors (DIY) -Repair/replace any...

I've got a problem towel rail in the house and I've been scratching my head what the problem might be. The towel rail only gets luke warm at best and there are no colder or warmer patches on the rail itself. All of the other radiators in the house are roasting. I've checked for an air lock by...

Sorry- yet another smart thermostat wiring question. I want to install a Drayton Wiser two channel system. I currently have a Honeywell wireless thermostat (connects to a R6660D) controlling my central heating. I have a Honeywell wired timer (ST9100c) controlling my hot water cylinder. I have...

we've got quite an old central heating system (regular boiler) with a tank in the loft. i could have sworn the water in this tank used to be hot, but i assume i'm mistaken and that it's a cold water tank? anyway, recently the heating has been making lots of creaking noises and the pump it's...

Hi, so we have a potterson promax so boiler and a water tank ... we have gas however the boiler has completely cut out and there is no hot water or heating, the pressure on the tank is very low... how do I increase the pressure? I have tried turning both valves but nothing happens - pictures for...

Hi all, Apologies in advance if this is a stupid question, I am totally helpless. Recently moved into a new flat and today turning the heating on for the first time since the move in date. We have a potterton performer 28, and as far as I can see I've set everything how it should be, but...