Discover some of the most common Worcester Bosch boiler error codes
You will receive excellent heating services, and clear communication.
You will receive excellent heating services, and clear communication about your new installation, service or repair.
You will receive excellent heating services, and clear communication about your new installation, service or repair from a professional team that respects you and your home.
Worcester Bosch Boiler Error Codes
Our experienced and knowledgeable heating engineers are here to help!
At PDF Gas & Heating, we understand how frustrating it is when your Worcester Bosch boiler displays a fault code. But don’t worry – we’re here to help you quickly and professionally identify the problem.
Take a look at our guide below for the most common Worcester Bosch fault codes and what they signify.
Worcester Bosch Boiler Error Codes
discover the most common boiler error codes
| EA: | No flame detected – ignition failure |
| A1: | Pump running dry / low water pressure |
| C6: | Fan running too fast or too slow |
| D5: | Issue with the fan |
| E9: | Overheating or dry fire detected |
| C7: | Fan not running / Faulty fan |
| 229: | Flame detected when it shouldn't be |
Still unsure? Contact our team today for fast boiler repairs.
Frequently Asked Questions
Can’t see your question here? Don’t hestitate to give the team a call or drop us an email.
If your boiler shows a fault code, the first step is to note the code down. Sometimes a simple reset can clear minor errors. However, if the fault persists or you are unsure, it’s safest to contact our Gas Safe registered engineer for diagnosis and repair.
Yes, most Worcester Bosch boilers have a reset button, usually located on the front panel. Press and hold the reset button for a few seconds. If the fault code reappears after resetting, it indicates a deeper issue that needs professional attention.
Multiple fault codes could suggest several issues or a communication error within the boiler. It’s important not to ignore this — multiple faults usually require a professional diagnosis to avoid further damage.
It can be! Some codes relate to minor issues, like low pressure, but others (such as flame detection faults) can be serious. If you're unsure or notice strange smells, sounds, or no heat/hot water, switch off your boiler and call a qualified engineer immediately.
We recommend servicing your boiler once a year. Regular servicing helps catch problems early, keeps your boiler running efficiently, and protects your manufacturer's warranty.