Fix Fault Worcester Greenstar

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We have 388 questions about fixing 'worcester greenstar'

Red light glowing worcester greenstar?

greenstar28I junior combi MK lv red light permananley glowing, boiler runns ok whot water ok


Boiler not working?

My Worcester Greenstar 30CDI is not heating the boiler since I changed the batteries on the thermostat


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How do I rectify aU9 Code?

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 the hot tap on the boiler just stop ... more


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Siemens RDH 10 RF Thermostat not triggering heating?

I have Siemens RDH 10 RF Thermostat and a Worcester Bosch Greenstar 30CDi combi boiler. The battery in the thermostat is fine. The green light is on on the wall sensor. When I turn up the thermostat ... more


Worcester greenstar 25si compact?

how to raise the pressure worcester greenstar25si boiler


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Worcester Bosch Greenstar ri 24kw?

WB Greenstar24kw Ri, heating working , but does not ignite for hotwater, so no hot water. (pressuried tanks) but no flashing lights/fault codes, just does not ignite for hot water


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Broken filler key stuck?

How do I remove broken part of filler key from Worcester Bosch Greenstar cdi


I have a Worcester Greenstar 42cdi boiler?

Water started coming out of fan casing at the bottom fan started making a weird noise water has stopped seeking Bill won't start can any one help please


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