How to mend Bosch Combi Boiler Water

Worcester bosch cdi 42 combi keeps firing every 10 mins?

I have hot water and heating but the boiler is firing up every 10 mins or so. It sounds like a tap is turned o... [Read more]

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Hot water go,s cold?

I have a worcester 24i combi boiler when we use the shower it runs hot then cold for a min then bacck to hot ... [Read more]

bosch greenstar 30si combi?

pressure gauge low but when i turn water valve open no water enters engineer cant find the problem, boiler is... [Read more]

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worcester combi boiler makes banging noise?

for last few days notice when boiler comes on and when hot water tap is on makes explosive banging noise can h... [Read more]

Worcester Heatslave noisy bang when turning on hot water?

Hi Have a Worcester/Bosch Heatslave Oil combi boiler. When I turn on any hot water tap in the house there is a... [Read more]

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Worcester bosch 24i Junior combi boiler noise with hot water?

Hi, I had a Worcester Bosch 24i Junior combination installed a couple of months ago and when I turn on the ho... [Read more]

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worcester 28i junior green star combi boiler?

this boiler does not display any codes it is about 7 years old i had a look at it today fan does not come on ... [Read more]

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What's wrong with my Worcester Bosch 24i Junior Combi Boiler?

Hi, I've come home today to find I have no heating/hot water and a boiler that I thought had a frozen condense... [Read more]

Worcester Bosch 240 combi boiler, ?

My boiler won't fire up, the pilot light won't come on consequently I don't have any heating or hot water and ... [Read more]

How can I fix my Worcester Bosch 24i RSF Combi Boiler?

The central heating side of my boiler will not fire up. The hot water starts straight away. The fan and pump a... [Read more]

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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]

worcester bosch combi boiler?

sometimes the hot water does not come on,sometimes the central heating does not come on, how do you fix it ?

how do i fix an air flow fault on the water heating side of a combi boiler?

how do i fix an air flow fault on the hot water side of a worcester bosch 25 si ll combi boiler

How do I raise water pressure on my Greenstar 25si/ 30si?

I have a Greenstar 25si/ 30si combi boiler. About an hour ago it made an unpleasant noise and I turned it off ... [Read more]

Troubleshooting a Bosch ZWB28-3 combi boiler?

Currently it heats our hot water well but when cold is mixed in like in the shower the temperature of the wate... [Read more]

greenstar 24hr junior combi mk111 condensing boiler?

how do I reset the water pressure on a greenstar 24hr junior combi mk111 condensing boiler using the key, I've... [Read more]

Greenstar cdi combi boiler - no pressure, pump on ?

Been on holiday. Returned to boiler pump coming on/off every few minutes. No water pressure, but can't reach t... [Read more]

How to fix my boiler?

I have a Bosch-Worcester Heatslave 12-14 combi boiler, and it is not firing on demand although we do have some... [Read more]

Greenstar 42CDi combi boiler flashing EA ??

No hot water and no central heating - pressure is in the green area. any ideas ??

Worcester Bosch Greenstar 37CDi Combi showing code U9?

My boiler is showing code U9, I know this means that the temp has risen to 99 degrees. The result when I turn ... [Read more]