combi

20210210_191008 by jk1_1 posted 10 Feb 2021 at 7:18 PM20210210_192807 by jk1_1 posted 10 Feb 2021 at 8:14 PMI have a Heatrae Sadia Electromax Combi-boiler. CH works, but no hot water. This coincided with 2 events: a full bath of hot water the night before (may have emptied the tank), plus...

First time living in a house with a combi. When I run the cold tap it triggers the combi hot water setting, I've checked the pipes and they are all connected correctly. The combi is just over a metre from the cold tap, is this just the slight pressure drop triggering as the boiler is so close to...

Hi All I am planning for a house extension at the moment and would like to implement the attached scheme in the Central Heating work. The house will have 1 bath + 2 showers when completed, for 3/4 people. The existing combi is a Baxi 30kW, 2 years old, from the previous owner. Since it would be...

Hi All, I recently moved to a new place. I am noticing a significant fluctuation in the pressure at operation (given my limited past experience) in the gas boiler and I just wanted to check whether that is ok for this model/seek some advice. Details -Vailant turbomax plus -small 2 floor...

Hi all. Apologies if my question is obvious to some/most! I am fumbling in the dark here. Am a new home owner, and have a leaky hot tap in the upstairs bathroom. More specifically, we have a 1901 Bristan pillar bath/shower tap, and water is leaking from the spindle on the hot tap. I can't see...

Hey there, Wondering if someone could give me a hand with wiring up a Hive to my combi boiler. The current wiring looks like this, boiler wires on the left and power and thermostat on the right. Its all just wired into a big connector. The boiler has 2 black wires rather than a black and grey so...

I have just moved into a new house which has a combi boiler (previously normal with HW cylinder) however the owner retained the Centaurplus C27 clock and just had hot water set to 24/7 to give a live to that circuit. Coming to replace with a hive single Chanel unit and looking for some help. At...

We're looking at replacing our ageing combi boiler and are weighing up whether it's worth getting a storage combi versus a conventional combi. (We've considered a system boiler and cylinder, but we don't think we can make it work from a space perspective; in any event, a combi should be...

Hello newbie here I wonder if anyone could help me, our boiler worked fine for about 18 months. Then it stop coming on and going off on the scheduled times. on Automatic it does not come off or go on. so I have to manually set the temp to come on and below 30 to turn off when I have had...

Hello all, I’ve been pointed to this forum as a source for help in a question over heating / hot water systems. Apologies for the long winded post to follow! My 4 bedroom, 2 bathroom house was built on 1999 and is currently heated by a Potterton Supreme heat only boiler and a gravity fed hot...

We have a Grant Vortex 36Kw combi keroscene burning boiler, which has two expansion vessels fitted to the heating side of the boiler. Recently we added a bit of pressure to one of the expansion vessels. Since then the boiler has stopped producing the by-product water that's produced when you...

Hi, We've just moved into a 4 bed / 1 bath detached house. The combi boiler is around 8 years old, it's working but when our friend who is a gas engineer serviced it recently he believes there is a problem with the heat exchanger. We're looking to extend the house in the near future, extending...

Hi hope somebody can help! We've had our open system boiler upgraded to a Viessmann Vitodens 050 combi back in August last year. When we had the heating on the first time in November when the thermostat was set to 20℃. After giving birth and having parents coming from the far east to help out...

Hi All Apologies if this is answered elsewhere, I couldn't see an answer but I may have missed it I have a crap combi boiler thermostat, I would like to replace it. (It's in the wrong place, hardwired and not very capable) We are having an extension built this year, and will add wet...

Hi, My combi has started shaking intermittently during the recent stormy weather almost as if air pressure is getting trapped in through the flue somehow.(sounds a little like a washing machine on spin in the next room) If I turn the thermostat down, it stops and then runs normally when I turn...

We have a large 4 bed, 1 bath, 1 showerroom bungalow. Ideal Mexico rs65, yes that old!, has run faithfully since 1987 when the house was built. It provides more than adequate heating and hot water and most of the year the boiler thermostat sits at 1. Only over the very coldest spells does it get...

Hi my combi has devolped a leak it only seems to leak when the boiler is off and cold (unless it's evaporating) when hot, it's only a slowish, please see picture for location, it seems to be coming from the nut on the base of the pump Do i need to either tighten up the nut or is it maybe a...

Hi everyone, I’m having some strange issues with my boiler that has our usual heating guy stumped and I’m hoping one of you friendly DIYers will be able to help. It’s a Logic Combi 24 losing pressure, around 0.5 bar every 24 hours. I turned the boiler off and isolated the central heating feed...

Hi all, My WB 30i combi obviously provides DHW on demand at all times when a tap is opened. It has a preheat function to provide a small amount of pre-heated water to reduce DHW heating times - manual control is via the ECO/PREHEAT button. It also has a (usually linked) input to presumably...

Hello I'm a new poster here, Boiler- Enviromax Combi C35 with Riello RDB Burner The central heating has been consistently loosing pressure over time and I have sorted many leaks since moving in the house but have discovered one small leak on a radiator that looses less than 15ml of water over...