How to mend ... Bosch Heating Boiler

replacing the diverter valve diaphram?

i think i need to replace my worcester bosch 240 diverter valve diaphram as im only getting hot water and no h... [Read more]

U2 error worcester bosch?

water over heating and knocking boiler off - U2 code coming up

How can I fix a worcester Bosch Junior Greenstar ?

Please does anyone have any ideas about the problem with my Worcester Bosch Junior Greenstar boiler, approx 3 ... [Read more]

Worcester Greenstar combi Heating works, but doesn't (??!)?

I have a Worcester Bosch Greenstar 30Si combi boiler with a Drayton SCR and RF3 digistat controls. The heating... [Read more]

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]

How do i pressurise a Worcester Bosch 400?

I have lost pressure in my Worcester Bosch Highflow 400 RSF. All possible solutions talk of either using a key... [Read more]

Worcester Bosch 25cdi boiler - central heating not working?

Hot water working OK but central heating won't work. Tried switching off Master Switch, leaving a few seconds... [Read more]

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]

worchester bosch highflow 400?

my boiler will heat my water but will not heat my central heating why thanks

worchester bosch highflow 400?

my boiler will heat my hot water but will not heat my central heating why thanks

How do you fix intermittent heating problem?

I have a new Salus programmable thermostat (RT500RF) and a new Bosch Worcester Greenstar 24Ri boiler. Sometim... [Read more]

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

no blue light from the bosch boiler?

no central heating

How do I get my heating to stay on until i manually switch it off?

I have a Worcester-Bosch Greenstar 28i junior condesation boiler, which has only been fitted for a year. Howev... [Read more]

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]

bosch zwb7-32 rd532 condensing boiler?

the pressure guage on the boiler keeps going to 3 & water keeps dripping out of the relief valve.I have draine... [Read more]

The transmitter light if flashing constantly?

I have a Worcester Bosch Greenstar 24i junior/28i junior, and the heating stopped working, i realised that the... [Read more]

my worcester bosch 280 combi-boiler water pressure is dropping?

What is the pressure supposed to be when the boiler is at rest.My water keeps falling below 1/2 a bar and I ne... [Read more]

Problems with Worcester Bosch Greenstar Ri?

Hi, We have the above boiler, it started making clicking noises a few weeks ago (its 5 years old) when we tur... [Read more]

I have no control over the hot water temperture from my high flow 400 boile?

Worcester Bosch changed the heat exchanger in my high flow 400 boiler and did some upgrades since then I have ... [Read more]