How to mend ... Heat Temp Boiler

pre-heat??

boiler fires up at 4:00 am (not programmed time) runs for 10 mins then switches off for 5 mins and runs aga... [Read more]

alpha he cb25?

My boiler keeps cutting in and out. The hot water temp is very low. Some one suggested replacing the heat exch... [Read more]

hot water heat pressure on 2# should be 12#?

Repaired a pipe on my H/Water heating system. Boiler type Weil-MclaLain. Worked well for 30 years. Now hav... [Read more]

potterton profile 80NG boiler seems to blow main fuse ?

Our main fuse (for boiler, outside socket and one internal socket, as far as we know?!) has blown for about 5t... [Read more]

Problem with my Vaillant eco tech 428?

I have got a Vaillant eco tech 428 heat only boiler which has been installed to a pressurised heating system. ... [Read more]

linea 24 ,braided pipes seem to be pulsating?

boiler gradually got noisey,found valve at top ,[expansion valve was leakin air,was serviced recently and poss... [Read more]

Hot water. Euro Combi?

I have an Ariston Euro Combi A/23 MFFI - A/27 MFFI and I am getting hot water from the taps and central heatin... [Read more]

valiant combi bioler moaning?

When the central heating is on and you have a shower in the bathroom upstairs the boiler starts making a moani... [Read more]

heating not working. glowworm 18hxi?

two of my radiators have not been heating up, yeaterday i switched the rest of my radiators off bar one to see... [Read more]

Filling/pressure issue - Bosch Worcester CDI 28?

I have just seen that the pressure gauge is down at 0 and have attempted to fill it up in the correct recommen... [Read more]

Boiler on cold rads but hot water?

Hi PLEASE HELP! Had a ravenheat csi 120 lox nox installed three years ago. Had Ravenheat out 9 times within 6... [Read more]

how to fix my boiler?

Have Potterton Profile boiler model 50e. Central heating will only work when water requirement is programmed t... [Read more]

Problem with Valliant Turbomax - varying water temp?

Hello all. Not sure of exact boiler make, but it is about 10 years old. Recently moved into new place, had b... [Read more]

How can I upgrade my Worcester 350 heater control?

We have a Worcester 350 combi-boiler with a UT2 single-channel time switch to control the central heating. Tem... [Read more]

Saunier Duvall F30E Hot water but no heating?

Hiya. Hot water operates fine however....demand for heat , boiler fires up ok, temp display increases to 77 de... [Read more]

Vaillant VCW242E Overheating and Uncontrollable?

I have a Vaillant VCW242 E Combi Boiler. Following a freeze up of the Boiler, I can no longer control the t... [Read more]

suprima 40l pls help?

boiler only fires up when hot water and heating on new three port valve/new pcb/new over heat valve runs fo... [Read more]

greenstar 24i junior ?

3 story house boiler on first floor thermostat in lounge on ground floor heat on first and second floors is fi... [Read more]

pressure rises on my vokera combi boiler when it starts 2 heat back up?

i have a vokera linea 24 combi boiler which was serviced in June. Now its cold 2day when it starts 2 fire up 2... [Read more]

sp60 vokera gas boiler 13 years old?

had gas engineer out again.most times its because the pressure drops below 1,its allways had the same problem ... [Read more]