Recent: Intermittent (twice) Then Complete Loss of Power?

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We have 516 questions about mending 'hot replaced boiler'

How to mend ... Hot Replaced Boiler

Mend Heating, Home Heating Systems

ace high boiler problem?

replaced diaphram and diverter valve service kit , ch working ok , in dhw only mode both central he... [Read more]
Mend Heating, Home Heating Systems

eurocal boiler oil, radiators constantley on when no heating on. ?

the radiators upstairs are always hot, no heating is on and the boiler fires up when nothing is turned on such... [Read more]
Mend Heating, Home Heating Systems

boiler works does not work?

when turning the hot water on the gas fail light comes on .switch water off then on the boiler ignites . the p... [Read more]
Mend Heating, Home Heating Systems

Replaced radiators on a worcester boiler now heating is not working??

We are updating my late fathers house and a plumber turned off the heating to take off a radiator to plaster ... [Read more]
Mend Heating, Home Heating Systems

Worcester Heatslave 20/25 problem?

Worcester heatslave 20/25 oil combi boiler 8 years old problem as follows, with hot water only selected o... [Read more]
Mend Heating, Home Heating Systems

Vailant Ecotec Plus 837 Radiator heating issue. fault 22?

Hi I recently replaced my old boiler with a new Vailant 837 combi and my heaters dont seem to be heating up, t... [Read more]
Mend Heating, Home Heating Systems

Problem with Worcester boiler pump?

I have a Worcester 28CDI boiler and i recently replaced a faulty pump. However, the new pump seems to operate ... [Read more]
Mend Heating, Home Heating Systems

F15 fault?

Hi, I have a F30E Theme Classic and have just replaced the 3-way valve as it had split (again). I have now ins... [Read more]
Mend Heating, Home Heating Systems

Vaillant TurboMax Problem - Help please?

Hi, I have a Vaillant Boiler Turbo Max around 11 years old. Now the boiler has stopped working as it s... [Read more]
Mend Heating, Home Heating Systems

Glow Worm Boiler pilot light going out?

Had gas valve, coil and sensor replaced, also has pipes cleaned still my pilot light goes out and my boiler ge... [Read more]
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High pressure and hot at both rads and water?

I have a canray 5 oil boiler. The circulation pump had ceased and has now been replaced. However I have some w... [Read more]
Mend Heating, Home Heating Systems

fault on my baxi combi 105e?

boiler works fine on heating and hot water for a while then goes to fault indicating flame and fan/flue. strug... [Read more]
Mend Heating, Home Heating Systems

what causes a combi boiler to get very hot and smelly?

Hello, Can anyone help? I have a 10 year old boiler that was in good working order, no bad odours, smells or ... [Read more]
Mend Heating, Home Heating Systems

biasi boiler not working properly?

biasi 24s boiler, I have replaced an airflow switch pipe, and a ch diaphragm, and bled the ch system. the boil... [Read more]
Mend Heating, Home Heating Systems

How do I fix water hammer just started on closure of hot water valve?

My central heating system (vented, not sealed - boiler replaced about 4 years ago) has suddenly developed a lo... [Read more]
Mend Heating, Home Heating Systems

Worcester Bosh 30cdi boiler problems?

Boiler (3years old) will run normally until end of it,s cycle or if temp is reached. It will then over heat. W... [Read more]
Mend Heating, Home Heating Systems

intermittent hot water?

i have a ferroli optimax 901 boiler.c/h is fine but hot water usually not working-occasionally does.replaced b... [Read more]
Mend Heating, Home Heating Systems

Ravenheat boiler with no hot water?

Have a CSI 85..CH is working fine but hot water is non existent. Started out intermittent.. Boiler fires up ... [Read more]
Mend Heating, Home Heating Systems

Any more suggestions for my baxi 105e please?

woke up the other morning with no heating or hot water from my 5 or 6 year old baxi 105e combi.i have,within t... [Read more]
Mend Heating, Home Heating Systems

problem with ravenheat rsf 820/20?

just replaced divertor valve, tested water and heating and was working fine, just put all the covers back on, ... [Read more]

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