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Worcester Bosch -¦¦- Code

Welcome to the fault-codes section of this site. The following table or page contains the information required to help repair and diagnose the fault codes being shown on the boiler display. You may be guided through the fault finding sequence or steps, for rectifying your boiler with this fault code. Suggested repair solutions may be provided by a link to a repair page. NB Some fault codes are only applicable to a specific range of boilers only.

-¦¦- Code

If your boiler is alternating between a temperature say 40 and the  -¦¦-  symbol.


Siphon fill mode. The boiler will run at a low burn for about 15 minutes to fill the condense trap. This happens after the boiler has been turned off, if it hasn’t been used for a day or so, and if the control knob has been turned down and back up. This is perfectly normal – it is a safety feature of the boiler. It will last about 15 minutes, the boiler will then go back to normal. If the boiler does this for more than half an hour, please ring your Heating Engineer or Worcester 0330 123 9559

Disclaimer: Information on this website is provided for informational purpose therefore we cannot accept liability for subsequent problems. All repair tasks should be carried out by qualified trades people. We may also receive commission payments when you are taken to external websites and complete purchases from third party sellers, once you leave our site, we cannot be held liable for your purchases.