How to mend ... Domestic Hot Water

pressure loss on vaillant 824 e thermo compact?

my boiler is losing pressure very quickly, there is no sign of any leakage and seems to drop quickly when disc... [Read more]

vokera linea 24 combi boiler problem?

when my boiler switches on to heat water in both heating and or domestic mode the green light changes to flash... [Read more]

Baxi Main no domestic hot water?

Central heating working okay but the water through the hot tap is cold and the boiler does not ignite.

Worcester 28cdi boiler makes a squeeling niose?

I have a Worcester 28cdi which squeels loudly when domestic hot water demanded. It starts off quietly then squ... [Read more]

heating works fine domestic hot water only works with a very small flow?

i have a Ariston Euro Combi SX20MF the heating works fine but domestic hot water only works on very small flow... [Read more]

Vaaillant Turbo Max 828-5e? combi boiler?

Having drained radiator to remove and then replaced and refilled system has lost pressure and will not reheat ... [Read more]

What is wrong?

My ravenheat condensing boiler lights and then goes out and then lights and then goes out and so on - the rads... [Read more]

Rayburn Driven Central Heating Problem - Upstairs Cold?

I have a Rayburn Gas CH system with a seperate pump. The cooker / boiler is in the basement kitchen with 3 ra... [Read more]

Worcester 24i RSF Junior - Water Flow Switch Melted!!?

Hi, had a few probs recently wi boiler, new Gas Valve & new PCB within last 2 months seemed to have sorted it.... [Read more]

no dhw?

i have no domestic hot water, central heating works ok

why does the domestic hot water keep leaking into the radiators?

the hot water for the domestic hot water is leaking into the radiators, so that even when the central heating ... [Read more]

Sime Friendly Boiler issue - radiators hot, sometimes not?

This is a bizarre one (or maybe it's more common than I think!). Here goes:- Due to falling water pressure ... [Read more]

Domestic hot water?

Is there a legal maximum temperature for hot water? I live in a council owned block of flats and it has a cent... [Read more]

How can I stabilise my Worcester Bosch 35CDi combi boiler pressure?

There has been a sudden drop in pressure from 1.8 bar to 0.7 bar. Repressurising with added water back to 1.8... [Read more]

My Worcester 24i Combi was working perfecly until I ran hot water tap?

Last night my Worcester 24i Combi was working O.K. until I turned on a hot water domestic tap. However, after ... [Read more]

Combi Gas Boiler?

My boiler is turned up to maximum on both domestic hot water and radiator temperature. The DHW is warm to medi... [Read more]

Worcester Heatslave combi boiler - removal of dom hw thermostat?

I have a 21 year old worcester oil heatlave 15/19 combi boiler (ser No 3/88/10/22450), but the domestic hot wa... [Read more]

RBW9 cannot get Central Heating without heating Water?

I can switch my controller to have Central Heating with Domestic Hot Water. I can switch on Domestic Hot Wat... [Read more]

My central heating comes on even though not switched on?

The heating comes on when the boiler strikes up to provide domestic hot water. On the programmer the heating s... [Read more]

boiler going out?

my vokera maxin 24 e . goes out after 5or 6 seconds both on central heating and domestic hot water.will start ... [Read more]