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My Worcester Greenstar 30 CDi Conventional gas-fired boiler has been emitting high-pitch beeps for the last hour, in the pattern: 4beeps, pause, 4 beeps, pause... I can't find any explanation for this audible signal in the users manual! There is no visual fault indication showing. Does anyone know how to stop the beeping?

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  • Ray Kearney Oct 20, 2011

    Hi My Greenstar 30CDi is also emitting unexplained tones (one high pitch followed by one low pitched about every three minutes). Did you ever find a solution to your problem? I'd be grateful for any info.
    photomanray@gmail.com

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just had same problem.  this apprently happens if the power supply has been interrupted or you switch the power on and off.
• The boiler runs for 15 minutes at minimum heat output to fill the condensate trap, the display (K) alternates between -II-” and the boiler flow temperature. This occurs every time the mains supply has been interrupted.

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SOURCE: My Worcester Bosch Greenstar 25CD1 is flashing 5E

the code is SE saying it needs a service it can be reset go to this link for a pdf file showing how to http://www.worcester-bosch.co.uk/cache/file/239/guide-to-re-setting-the--se--code-on-greenstar-cdi-boilers.pdf

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i have the same boiler and this code refers to gays suply error, i would suggest a engineer to yake a look at it but first check if ur gas suply is ON ...!

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