How to mend ... Heating Boiler System

How can I get rid of trapped air in central heating system?

After replacing the small rubber seal on the shaft of the hydraulic actuator in my BIASI 24S Combi boiler, the... [Read more]

Condensing boiler overflow dripping?

We moved into a newbuild 18 months ago but over the last 2 months the overflow pipe to my boiler (located dire... [Read more]

Does my boiler need it's gas pressure adjusting ?

My Sabre 35 Combi boiler fires up ok when i turn on the hot water tap, but the water has to run for ages befor... [Read more]

Randall 102 timer, my heating did not come on this morning please help?

My heating has suddenly stopped working. I have a back boiler system that has a Randall 102 timer on it. I rep... [Read more]

Pressure constantly dropping and then the heating will not operate?

The pressure is set at approximately 1.5-2.0 bar. Over a period of 3-4 days the pressure drops to below 1.0 b... [Read more]

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]

Heating cutting off for no reason?

My central heating keeps cutting itself off, a red light comes on and flashes on the boiler and i have to rese... [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]

why could my Swift Flow 75 boiler not work after changing my stop cock?

Swift Flow 75 - 80 Combi Boiler I changed my Stop Cock and now my Swift Flow 75 - 80 Boiler will not work. ... [Read more]

Why is my upstairs heating always on?

My boiler is a Glow Worm 24 hxi and I am afraid I don't know in great detail what my system is as I have very ... [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]

Loss of heating water?

When I top up the system to 1.5 bar the water is thrown back out the pressure valve when the boiler runs up to... [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]

How can I fix my Vaillant Turbomax Plus combi boiler?

Have recently drained and refilled system. Turned boiler on and after an hour or so pressure was around 2 bar,... [Read more]

pressure gauge on combi boiler?

I have a Ravenheat RSF 820/20T fanned combi the pressure gauge on it shows an increase in pressure above the i... [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]