central heating

Hello everyone, My home has a BAXI DUO-TEC COMBI 24 HE. The radiators won't heat up even though the boiler is showing a green light saying they are running. The hot water is still working though. I've tried bleeding radiators and then pressurising the boiler after but I still have the same...

Hello, I moved house recently and one issue that I noticed after a week or so was lots of trapped air in the CH. Two or three upstairs radiators had about 1/2 to 1/3 of the top feel cold. The system also had too little pressure to force this air out when bleeding the radiators (the boiler read...

Hi, Moved into a 4-bed Edwardian (1906) terraced house. For the past few weeks I've been hearing a mysterious squawking sound, in different rooms (kitchen, living room, upstairs back bedroom) at different times. Audio and separate video below. When they happen, they are precisely 31 seconds...

I have a problem with one of my new Hive Heating thermostatic radiator valves that I got last month, it has stopped responding to manual temperature changes via the valve it's self, but the valve still wakes up when you go to manually adjust it as shown in the video. Have I accidentally enabled...

Hi, We have just moved in to an old property with a Ideal Mexico 2 boiler controlled from a Horstmann Potterton controller. The timer function has just stopped working and I thought I could upgrade the potterton controller to a Nest thermostat with heat link. I think the Ideal Mexico 2 is a...

Hi all, for a long time I have just had three Hive TRV's. One in my bedroom, one in my bathroom and one in the spare bedroom. I have just installed 6 more Hive TRV's for the remaining radiators in the house (except the main bathroom rad what intentionally does not have a TRV) and wanted to know...

I have a very old system with a back boiler, and a header tank in the loft. It has a TF1 filter, fitted 5 years ago, but has largely been neglected over the years. In September I tried the heating and it wouldn't come on. Also, the header tank was full of brown sludge, which I cleared out...

Hi looking for advice in where to start with fixing our boiler. The boiler doesn’t turn on when central heating only is on, but seems to work fine when hot water is on. Three way valve seems to be fine, in that radiators warm up when hot water and central heating are on, and cool when only hot...

If I remove a radiator from the system, do I just cap the inlet and outlet pipes or do the pipes need to be joined together for the system to flow? The system is a solid fuel backboiler with vent / expansion tank in airing cupboard for radiators. There are 5 radiators in the system, but we are...

Our Riello rdb2,2 26-33 burner won't fire up, there is no wall mounted thermostats, it is about 7 years old and our house is very thermally efficient, so there is 600 litres of oil used over a year. Two weeks ago the burner was running to heat some water without any problems. The other day when...

I've had X400 in for 2 weeks now. It seems to be working, and I've run the heating hot at times during cold snaps, including with one radiator at a time. However, at this time of year the heating is off during the day and not that much at night either. I could drain it now, but want to get the...

I've moved into a new house and I'd like to upgrade to a smart thermostat, such as the Draton Wiser. Self installation seems do-able but I don't understand my current Honeywell thermostat CM907. Most smart thermostat install guides show many wires coming into the backplate of the existing...

Hi. I have an old back boiler. The system has an F&E tank and a Grundfos pump. This week I turned on the heating for the first time of the winter and the boiler turns on but cuts out quickly. The pipe nearby gets hot, but none of the radiators do. Around 5 years ago, a Fernox Total Filter 1 was...

Hi, looking for some help/advice regarding my mums boiler. She has a Baxi Platinum 28 HE Boiler which is approx 5 years old with a hand held receiver(?) Salus RT305TX and a Salus RXRT505 which is wired up to the boiler and mounted on the wall to the side. Central heating hasn't been on the...

Hello I have installed the Drayton wiser hub r and have connected it to the dual digital thermostats. Whenever I increase the temp on the thermostats the little flame appears, and the LED for heating on the hub r lights up but the central heating on the boiler does not come on. We do not have a...

Hi, Have switched our hot water and central heating to our summer settings using Honeywell ST7100 and have found that the central heating is still coming on despite having set all settings instances not to. Effectively the central heating is coming on at the same time as the hot water is set to...

Hi all, I'm looking to reorganise some copper pipework to where a combi boiler will be installed. Planning to chase out a section of a conrete floor for the pipework and using fixing band instead of clips too so the chase doesn't have to be too wide or deep. My question is can all these pipes...

Hello everyone, Can someone please confirm if this (marked in red in both pictures) is the isolator valve? If so, will shutting this off will prevent water to flow to the 3 port valve connected below the pump (picture2)? We need to replace the 3 port valve body and need to know if we can do...

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...

Greetings all. I'm after a bit of advice as we have an issue with our HW kettling and on closer inspection the wiring on our 2-port Valves looks a little suspect to my untrained eye. Background: The house was built in 2001 and has an 'S' CH/HW System installed. If the HW is on and the CH is...