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Then my first thought would be flow switch, this switch tells the boiler you are running a tap so it knows to fire. If you run the tap and nothing happens, it's probably that the boiler doesn't know you've turned the tap on. By trying the heating, you've established that most of the components...

Doesn't work in heating or does it have the same fault for both heating and hot water?

So, it was low on pressure and noisy. You topped the pressure up and now it's not noisy. Just keep an eye on the pressure over the next few days to see what happens. If the pressure vessel was faulty, the pressure would rise very high and very quickly in heating. Also water would be seen coming...

As said, it is NOT a legal requirement for a CO alarm for purely gas appliances in England although that may be different in Scotland. It is however a legal requirement for log burners in rented accommodation

If the water is getting hot, then running cold for 10/20 seconds, then hot again and staying hot then that can be normal especially if the boiler is already on for heating. The water within the boiler gets hot because the boiler is already on or it has been pre-heated and that is delivered to...

Yes, it's a glow worm hxi boiler.

Normally yes, but if the room the thermostat is in regularly reaches 21+ quickly, then the stat will turn the boiler off early. Set the stat to the right level for you house/comfort level. The stat will still control the system if at 23 but allow the rooms to reach temp and the TRV's to do their...

Of course you could just turn the thermostat up so the heating stays on long enough to heat the room to the temperature you want

In your last picture, below the two red knobs is a silver flexible hose. At the bottom of it is a valve with a slot designed to fit a flat screwdriver. Using said screwdriver, turn the valve 90 degrees and you'll hear water entering the system. When the pressure gauge reaches 1 to 1.5, turn the...

Hive will work without the internet, it will follow any times already programmed or you can turn on/off/up/down/boost via the thermostat on the wall. The only functionality you lose without the internet is via the phone/tablet remote stuff. Hive also now has remote light bulbs, plugs, motion...

Hive will work without the internet, it will follow any times already programmed or you can turn on/off/up/down/boost via the thermostat on the wall. The only functionality you lose without the internet is via the phone/tablet remote stuff. Hive also now has remote light bulbs, plugs, motion...

If I have read you post and replies correctly, it seems as if your provider has not been able to access your meters to get a reading. In that case they have to provide an estimated bill based either on your previous usage or an average for you type of house. If this is the case you need to...

The one I have for this is part number 174201 - 3way cartridge for VC series valve only

If it helps you decide, I believe BG are offering 10% off of Hive till 18th May

If you turn the black control knob round to off, wait a few seconds and turn back to its original position that should reset

shouldn't matter about power cut, your heating isn't working and they will fix it. It all depends on whether the mid pos vale is sending power onto the boiler or not, if it is, the fault then lies at the boiler. If it isn't, then the system controls are the fault. Either way, BG will sort it.

OK, I see from previous posts you have a mid position valve, do you have the equipment or knowledge to test for voltages at the system junction box

Firstly, some questions to help find problem. Is boiler blue light on, is the programmer asking for heat (lights on). Also, are you on BG contract, if so, call them, you are paying for that cover, let them help you