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Mend Bosch Combi Three

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We have 281 questions about mending 'bosch combi three'

How to mend ... Bosch Combi Three

Mend Heating, Home Heating Systems

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]
Mend Heating, Home Heating Systems

how do I reset the pressure relief valve on a worcester bosch combi?

I opened the valve to repressurise my worcester bosch condensing combi and forgot about it (My grandaughter wa... [Read more]
Mend Heating, Home Heating Systems

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 ?
Mend Heating, Home Heating Systems

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]
Mend Heating, Home Heating Systems

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
Mend Heating, Home Heating Systems

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]
Mend Heating, Home Heating Systems

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]
Mend Heating, Home Heating Systems

what is the most likely fault with a worcester bosch greenstar combi 28i?

The system was drained to fit new rads and after refilling it will not start up. Bosch greenstar 28i The blue... [Read more]
Mend Heating, Home Heating Systems

fault ea?

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

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]
Mend Heating, Home Heating Systems

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]
Mend Heating, Home Heating Systems

How to remove expansion vessel on Worcester 350?

Need to remove expansion vessel on worcester bosch 350 combi. Have removed fixing screw and released fixing cl... [Read more]
Mend Heating, Home Heating Systems

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]
Mend Heating, Home Heating Systems

worceter bosch combi boiler?

loosing pressure due to water leaking out of condinsation pipe.
Mend Heating, Home Heating Systems

worcester combi bosch?

How can the pressure gage be increased with the steel bendy pipe ? At present the reading is in the red close ... [Read more]
Mend Kitchen Appliances, Microwaves

bosch hbc84k5.1b Combi Microwave / Oven?

Hi nor sure if any can help, the microwave part of this oven shuts down after 2 seconds. Any guidance would b... [Read more]
Mend Heating, Home Heating Systems

combi boiler stays on full burn?

worcester bosch 280 rsf wont switch to low burn unless i turn boiler thermo back or i turn hot tap on & get a ... [Read more]
Mend Heating, Home Heating Systems

pilot light has blown out on my wocester bosch greenstar 30cd1 combi how do?

the pilot light has blown out on my worcester bosch greenstar cd130 combi boiler how do I relight
Mend Heating, Home Heating Systems

what is the problem,40cdi bosch combi boiler keeps losing its pressure?

40cdi worcester bosch combi boilerkeeps losing pressure, what is the problem ?
Mend Heating, Home Heating Systems

bosch worcester 240 combi ?

all of a sudden there is no CH or hot water.. pressure seems Ok at 1.2bar, no leaks .. the pilot bursts into l... [Read more]

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