How to mend Bosch Boiler Radiators

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Worcester Bosch 40CDi - Fault Code 5E?

I have this code 5E flashing on my display. Other answers suggest it is a servicing scheduling problem, but... [Read more]

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why ami losing pressure on my green star 28i junior boiler?

system and dhw working ok! check radiators for leaks and all topped up. The system is not dumping water ive ch... [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]

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FC fault?

Radiators hot all the time,Fault FC? Thermostat TR2, boiler:Worcester Bosch RD532i. Multifunction display s... [Read more]

Radiators hot all the time,Fault FC?

Radiators hot all the time,Fault FC? Thermostat TR2, boiler:Worcester Bosch RD532i. Multifunction display s... [Read more]

1

my pilot light has gone out on our Greenstar 30CDI, how do I re-light it?

My heating has been working intermittently this afternoon after working completely fine for that last couple o... [Read more]

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Radiators hot all the time,Fault FC?

Thermostat TR2, boiler:Worcester Bosch RD532i. Multifunction display shows fault FC,Text display shows Please... [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]

air trapped in worcester bosch 40 cdi ?

My worcester Bosch 40 CDI goes down nearly every time I manually switch it to radiator mode. It may run fine ... [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]

greenstar heatslave 18/25 making a high pitched screech?

greenstar heatslave 18/25. We have disconnected a radiator and now the boiler is making a high pitched screech... [Read more]

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Greenstar 30 CDi central heating not working?

Worcester Bosch Greenstar 30 CDi boiler supporting the central heating after being off all summer. Hot wate... [Read more]

1

Worcester Bosch Highflow 400 BF boiler problem?

Hi, my boiler produces hot water on demand OK but refuses to turn off the central heating. Even with both heat... [Read more]

Greenstar 30cdi boiler light?

I have a problem developed with my boiler - I am getting hot water, just no central heating. Only light that i... [Read more]

Greenstar 25Si/30Si boiler?

The pressure on the boiler is at zero, how do I get more pressure, I have already bleed my radiators

radiators on upstairs but not down??

we had three power spikes yesterday within 2 hours since then our boiler has been playing up we have hot water... [Read more]

Drayton Digistat SCR not firing boiler?

Help, My drayton digistat scr is not firing up the Worcester/bosch 24i junior boiler. The scr is communicati... [Read more]

bleeding radiatos?

I have a worcester bosch 24cdi boiler which i have just repressuired but it will not fire up. Do i need to bl... [Read more]

how can i fix greenstar 30Si?

What does it mean? Can I sort this or do I need my engineer to come out? Is it safe? Or dangerous? Just put... [Read more]

Any ideas?

We have a Worcester Bosch boiler Greenstar 25Si/30si. It has been losing pressure over the last few weeks and ... [Read more]