How to mend Bosch Combi Boiler

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 ?

Ihave a worcester bosch greenstar 30Si with a digital optimiser?

I have a worcester bosch greenstar 30Si combi boiler with a digital optimiser. The heating is full on and the ... [Read more]

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worcester 28si ll?

my combi boiler keeps triping out when the heating comes on

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]

How can I fix the noise on my Boiler and stop it loosing pressure?

The problem appears to be the pilot light on my boiler (Worcester Bosch 230 RSF combi ). When switched on it s... [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]

how can i fix my worcester24i junior combi?

boiler pressure rising too high on the guage

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]

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fault ea?

Help please. I have a Worcester Bosch RD532i combi boiler and it's displaying Fault EA, which I have establis... [Read more]

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woresterboch 24i greenstar combi boiler?

when i put on boiler control for constant heating it will not fire up but it fires up for hotwater

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C1 is flashing on my Greenstar HE combi boiler?

And it won't start up. What does this mean? If I reset it says 22 in display then as soon as it gets to 23 it... [Read more]

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how can i fix GREENSTAR 24i junior / 28i junior combi boiler?

just bled radiators for first time. Now all radiators have gone cold but heating is still on. Dont know what t... [Read more]

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how do i fix my combi boiler?

Ive got a Greenstar 24i junior condensing boiler which has got no pressure since bleading the radiatiors last ... [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]

How can I fix our Worcester Bosch 350 Combi?

The Worcester Bosch 350 Combi displays nothing on the display screen. Looks like no power is getting to the Bo... [Read more]

Appears that no power getting to Boiler?

Worcester Bocsh 350 Combi will not fire up. No display screen

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]