How to mend ... Heating Hot Water System

Greenstar CDi combi boiler overheating?

Hi, Greenstar CDi combi boiler 3 years old. Top floor radiators cold so bled, this dropped water pressure to z... [Read more]

the hot water is ok but no heating?

the hot water system is fine but no heating not even when overriding the programmes tried re-programming and s... [Read more]

morco boiler not firing up?

morco feb24ed boiler has had new pcb, new pump and now new water pressure switch. As yet still showing low wat... [Read more]

Worcester Bosh 24SI II?

When boiler initially switched on it ignites and the heating and hot water works. After about 5 minutes (has ... [Read more]

Spectrum Fuel-Miser Mk IV?

My central heating system has a Spectrum Fuel Miser Mk IV which provides: . Electronic temperature control of... [Read more]

glowworm betacom 30 problem?

Hello folks, boiler is 2 years old, had plate heat exchanger cleaned/changed/cleaned...dhw sensor replace... [Read more]

what could be cause of heating problem?

i have an ariston micro combi 23 mffi boiler the pressure in system keeps dropping to zero , when i refill sys... [Read more]

how to fix combi boiler problem?

Ravenheat CSI 85 780 series combi boiler fitted 3 months ago, hot water fine but when central heating is on ca... [Read more]

The pump appears to be operating when central heating is not on?

The water pump seems to be operating even when neither the hot water nor the central heating system is calling... [Read more]

siemens RWB9 Programmer Fault?

i have a fully pumped system with zone valves , one for heating and one for hot water, my problem is that when... [Read more]

Ideal Classic ff270 boiler keeps losing pressure?

The boiler is designed to operate at one bar pressure when cold. The sealed system has been charged (twice) b... [Read more]

WB 42 cdi hot water?

I seem to have air in the hot water system, the heating is bled and works fine, the boiler was working fine ti... [Read more]

banging pipes?

i have an ideal icos he24 boiler.over the last 6 months the system has slowly developed a very very loud bang... [Read more]

How to repair a Potterton Boiler (Netaheat 10/16 Potteron GUK124788)?

From the heating system there is no hot water and the radiators are not heating up either. From the boiler the... [Read more]

Digistat SCR fault?

Hi I have a similar problem with the Drayton Digistat - hot water is ok - but no lights at all on the SCR reci... [Read more]

boiler flooded can it be fixed?

My heating has not been working since October 2011,no hot water either. Told by two plumbers that the ignition... [Read more]

alpha boiler - hot water ok but only slight central heating ?????????

boiler is lighting and giving good hot water but the central heating is just lookwarm even after 3 or 4 hours ... [Read more]

warmflow combi problem?

boiler is heating radiators from the return pipe when hot water only is selected. I have changed the non retur... [Read more]

How can i fix my Ravenheat CSI 85 AAA (T) 780 series?

can anyone help me please? my ravenheat CSI 85 AAA (T) boiler works absolutely fine in winter mode but when i ... [Read more]

Why is red light still flashing?

My heating and hot water are working but the red light on low pressure system is still flashing? I have an eld... [Read more]