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We have 159 questions about mending 'into cdi boiler'

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Mend Heating, Home Heating Systems

Worcester Greenstar 40CDi fan running contiously?

I have a Worcester Greenstar 40 CDi boiler which had displayed an EA fault. I rest this but all the boiler do... [Read more]
Mend Heating, Home Heating Systems

how to reduce boiler pressure ?

i have set the bar pressure on my greenstar 37 cdi to high. how do I reduce it to proper level. Do I use the k... [Read more]
Mend Heating, Home Heating Systems

Faulty Worscester 35 CDi loosing pressure?

My Worcester 35cdi has had 4 replacement heat exchanger's in less than 10 years the first 2 were within the fi... [Read more]
Mend Heating, Home Heating Systems

can we fix C6 fault on central heating boiler?

C6 fault showing on30 Greenstar CDi boiler Can we fix it ourselves?
Mend Heating, Home Heating Systems

Worcester 30 CDi boiler ?

My boiler is blowing the fuse at electrical supply and and error code c6 is showing in boiler. This indicates ... [Read more]
Mend Heating, Home Heating Systems

greenstar cdi ?

Hi I have a Greenstar CDI boiler that will not reach over 18 c I've bled the radiators reset the boiler check... [Read more]
Mend Heating, Home Heating Systems

shower goes cold whilst useing?

I have a 23 cdi combi. my shower keeps running cold when I use it. it can happen about 3 time during a shower... [Read more]
Mend Heating, Home Heating Systems

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]
Mend Heating, Home Heating Systems

water pressure reset in boiler?

could anyone please advise how/where to insert the plastic water pressure key in a celsia cdi combi boiler to ... [Read more]
Mend Heating, Home Heating Systems

Can I use heating without transmitter?

I have a Worcester Greenstar CDi combi boiler and the transmitter is broken. I wanted to know whether I should... [Read more]
Mend Heating, Home Heating Systems

..worcester 24 cdi filling loop problem ?

require to repressurise the boiler but the grey plastic knob has sheared the black plastic loop. ..can the bls... [Read more]
Mend Heating, Home Heating Systems

boiler keeps showing lost radio link cdi 30 model?

i have reset the radio link but it still keeps losing the signal, I have changed batteries but it still keeps ... [Read more]
Mend Heating, Home Heating Systems

How to replace a snapped internal filling knob on a worcester 28 cdi?

While re pressurising my boiler the grey operating knob snapped off. How easy is it to remove/replace with a n... [Read more]
Mend Heating, Home Heating Systems

boiler not staying on?

My worcester cdi 40 keeps flashing F7. How can I turn on my boiler and stop it keep shutting off
Mend Heating, Home Heating Systems

What is wrong with our Worcester Bosch Greenstar CDi Conventional?

We have a Worcester Bosch boiler installed 5 years ago. It has been working fine and been serviced up until t... [Read more]
Mend Heating, Home Heating Systems

no hot water on demand worcester 24 cdi?

Hi when the hot water tap is turned on the boiler dosnt fire and the red light dosnt come on.. however when th... [Read more]
Mend Heating, Home Heating Systems

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]
Mend Heating, Home Heating Systems

how can i fix my worcheter greenstar cdi 37?

when running hot water slow from taps boiler makes noise and when in eco mode. but not in eco mode
Mend Heating, Home Heating Systems

how do you replace the transformer on a Worcester 35 CDI 11 RSF Combi-Boile?

I have managed to burn out the transformer on the above model combi-boiler, does it just prise out of the circ... [Read more]
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