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We have 77 questions about mending 'best combi condensing'

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Mend Heating, Home Heating Systems

vaillant ecomax824E f05 code showing?

vaillant ecomax824E condensing combi vuwgb246ecv showing fault code f05 on display fan pump runs diverter val... [Read more]
Mend Heating, Home Heating Systems

Heat line c24/c28 condensing wall mounted combi boiler?

Heating is working, hot water is not there is plenty of pressure when hot water is called for ALL red led's li... [Read more]
Mend Heating, Oil Filled Radiators

Flushing unvented CH system?

Have a Worcester Heat Slave combi 18 yrs old and am looking to replace with condensing combi. Would like to f... [Read more]
Mend Heating, Home Heating Systems

What is the problem when:-?

Vokera Compact combi(not condensing) is pressurising up to blow off constantly, although filler loop is discon... [Read more]
Mend Heating, Home Heating Systems

potterton performa 28(condensing) combi?

why does my combi keep losing pressure?? i have no apparent leaks anywhere and i know there is about 0.75 bar ... [Read more]
Mend Heating, Home Heating Systems

biasi hot Walter?

hi .biasi condensing combi 15 months old tern on the hot tap on boiler lights up then cuts out .the diaphragm ... [Read more]
Mend Heating, Home Heating Systems

My central heating is lukewarm?

Can anybody help me pleeeeeeeeeease my hot water works but my heating is hot at the nearest rad but fades to n... [Read more]
Mend Heating, Oil Filled Radiators

Oil Boiler Pressure Gauge fluctuating?

I have had a new Worcester Bosch Oil Condensing Combi fitted (Aug 07). The installer set the red gauge at 1.5 ... [Read more]
Mend Heating, Home Heating Systems

How can I have low N Gas pressure?

Hi All The corgi installer tells me that my new condensing combi boiler has very low DHW temp because the bur... [Read more]
Mend D.I.Y, Plumbing

gainsborough 9.5e in winter?

During the summer it's great but as soon as the winter comes the water outside gets cold we have trouble, i ha... [Read more]
Mend Heating, Home Heating Systems

Tiny black bits left in the bowl/sink after running hot water. What are the?

Had Greenstar Heatslave 18/25 oil fired condensing combi boiler (Worcester Bosch) installed 4 months ago. The... [Read more]
Mend Heating, Home Heating Systems

boiler heating up all the time?

i have a ravenheat condensing fanned combi csi85-csi85t it as just started to heat the water all the time in b... [Read more]
Mend Heating, Home Heating Systems

Can anyone tell me whether a concorde wrs is a standard boiler?

Can anyone advise whether a concorde wrs is a standard boiler and if a condensing combi can be used to replace... [Read more]
Mend Heating, Home Heating Systems

Ravenheat CSI 85AT boiler tripping problem?

Ravenheat condensing combi boiler CSI 85AT fault? My 1.5 year old boiler has developed a random & intermitt... [Read more]
Mend Heating, Home Heating Systems

Ravenheat condensing combi boiler CSI 85AT fault?

My 1.5 year old boiler has developed a random & intermittent tripping fault, in both modes of heating (i.e. CH... [Read more]
Mend Heating, Home Heating Systems

My 18 month old combi boiler is leaking?

Hi, I have a Ravenheat Condensing Fanned Combi CSI 85T only 18 months old and it has started to leak. The boil... [Read more]
Mend Heating, Home Heating Systems

recharging my worcester bosch 24si boiler?

i need to recharge my boiler, but i have not had to do it before now and i am not quite sure about the procedu... [Read more]
Mend Heating, Home Heating Systems

How do I reduce pressure in my Baxi Combi?

Hi, I need to know how to reduce pressure in my home Condensing wall mounted combi - pressure is at 3 bar, sho... [Read more]
Mend Heating, Home Heating Systems

the hot water pressure is low and bath takes a long time to fill?

worcester 24i combi (not condensing)
Mend Heating, Home Heating Systems

how do I fix my boiler -Vaillant fault code information?

Does anyone know the meaning of F30 code on a Vaillant ECOmax Condensing Combi VUW286E . Does not ignite when... [Read more]
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