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We have 130 questions about mending 'bosch combi hot'

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Mend Heating, Home Heating Systems

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]
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

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

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 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

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

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

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]
Mend Heating, Home Heating Systems

Worcester Bosch 24i Combi hot water but no heating?

The boiler is hooked up to a Drayton 2RF Digistat. The boiler gives hot water but despite the transmitter call... [Read more]
Mend Heating, Home Heating Systems

Any idea whats wrong with my Worcester Bosch 24i Combi?

We have a fault that when we turn the hot tap on we do not always get hot water, the boiler does not ignite, t... [Read more]
Mend Heating, Home Heating Systems

no hot water from worseter bosch greenstar combi boiler?

The boiler doesn't fire when the hot tap is turned on but does fire if the heating is turned on
Mend Heating, Home Heating Systems

signal in worcester bosch combi boiler?

i can get hot water ok but the boiler cant find a signal for CH
Mend Household Appliances, Vacuum Cleaners

how to fix my hot water system?

I have a worcester bosch combi boiler and the hot water first runs very hot and then cold, the temperature in ... [Read more]
Mend Heating, Home Heating Systems

What part do i need?

My boiler is a Worcester bosch 240 Combi. The CH, when switched on works fine. When i turn on the hot water ta... [Read more]
Mend Heating, Home Heating Systems

worcester bosch 240 boiler fault?

central heating works fine but hot water is only luke warm 240 combi boiler
Mend D.I.Y, Plumbing

low hot water pressure and no hot water?

I have a worcester bosch 230 combi. I recently changed the pressure relief valve and expansion vessel. All was... [Read more]
Mend Heating, Home Heating Systems

fix my boiler (bosch c1 combi boiler)?

hot water is only getting slightly warm even thou gas burner is running fine
Mend Heating, Home Heating Systems

worcester bosch 537i gas combi?

open dhw tap - boiler fires and goes to full fire fan on pump on no hot water
Mend Heating, Home Heating Systems

How can I fix the ignite on Bosch JUnior 24i?

I have a Greenstar 24i Junior-Bosch combi boiler installed in June 2009 and serviced this year.This morning th... [Read more]
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