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We have 420 questions about mending 'combi heat water'

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Mend Heating, Home Heating Systems

whats wrong with my boiler?

hi i have a ideal evo combi boiler and keep getting problems with the hot water side the plated vain unit keep... [Read more]
Mend Heating, Home Heating Systems

Baxi 105HE Heating fault?

I have a Baxi 105HE combi boiler. When the hot water is in demand the boiler will run ok no matter how many t... [Read more]
Mend Heating, Home Heating Systems

combi boilers?

why does my boiler switch on every couple of hours for 30 seconds or so even though heat or hot water has not ... [Read more]
Mend Heating, Home Heating Systems

Biasi Combi Boiler M90E.245 problem!?

My radiators and hot water keep going cold whilst the Combi is still running in the background. I keep having ... [Read more]
Mend Heating, Home Heating Systems

worcester highflow combi boiler not working?

the boiler lights are on and the pressure is ok but although it sounds like it is coming on there is no heat i... [Read more]
Mend Heating, Home Heating Systems

Britany Combi - how do you add water to increase the pressure?

Our pressure guage is showing just over 0, does anyone know which is the inlet to add water and increase the p... [Read more]
Mend Heating, Home Heating Systems

Any ideas what my problem is???

I have a 10 year old Ravenheat combi boiler (not sure of model, but will add when i get home later). It will o... [Read more]
Mend Heating, Home Heating Systems

How can i fix my Potterton Performa 24 combi. boiler?

My Potterton Performa 24 combi. boiler will switch on and fire up, but will not switch off. For example: If i ... [Read more]
Mend Heating, Home Heating Systems

Vaillant Combi VCW 25/1 T3 Hot water temperature lowish?

My boiler has been in operation since 1983 and I have replaced various parts over the years so am fairly happy... [Read more]
Mend Heating, Home Heating Systems

combi boiler raven heat. no hot water & heating intermitant?

combi boiler raven heat condencing fan boiler. model: cs185a / cs185at. No hot water (occasionally intermiten... [Read more]
Mend Heating, Home Heating Systems

How do I increase my combi boiler hot water temperature above 60*?

Ferolli Maxima 35C. Good animal, had it for 3 years but it niggles me that the DHW is limited to about 60 deg... [Read more]
Mend Heating, Home Heating Systems

central heating ?

my potterton combi 80 boiler heats water with no problem, however the central heating does not work, i put ... [Read more]
Mend Heating, Home Heating Systems

Worcester 350 combi not heating domestic hot water?

I have a worcester 350 combi that works ok on the central heating side, but randomly fails to light when drawi... [Read more]
Mend Heating, Oil Filled Radiators

British gas have check my heating on 3* contract?

I have called out B/G on 3* contract because my 14 year old Glow-worm combi boiler is failing the pilot light ... [Read more]
Mend Heating, Home Heating Systems

my vaillant Sine 18 combi boiler has fault?

While I appreciate that it's knocking on a bit, like myself, I feel that there is plenty of life left in the o... [Read more]
Mend Heating, Home Heating Systems

replace the water to water heat exchanger in my worcester bosch 28cdi combi?

The manual tells me to remove the filling loop by removeng the two holding scews and then slide the assemble t... [Read more]
Mend Heating, Home Heating Systems

Baxi combi 105E flame on and off problem?

When I turn on the boiler for either hot water or central heating the flame light will come on, the boiler wil... [Read more]
Mend Heating, Home Heating Systems

Glowworm Swiftflow Start Up?

Hi!! I've turned the combi boiler back on, got the pilot working fine but no heat to the shower, rads or ho... [Read more]
Mend Heating, Home Heating Systems

Worcester 28 cdi switches on when cold tap turned on?

When I turn on a cold tap or flush the toilet the boiler switches on.It doesn't heat the water but surely this... [Read more]
Mend Heating, Home Heating Systems

Baxi Combi 105e - flame-out problem?

My boiler runs oK on CH & hot water. However if I shut the CH off from the Controller ,the Boiler keeps runnin... [Read more]
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