Worcester Bosch error codes
The complete list of Worcester Bosch fault codes shown on the display, each with what it means and the page that explains how it is diagnosed and fixed.
Worcester Bosch heating appliances display 6 documented error codes. Each code below opens its own page with the official meaning, the documented causes, the safety assessment and the parts involved.
All Worcester Bosch Error Codes
6 codes, each with its own page. Click a code to open the meaning, the documented causes and the repair.
What Fails Most Often on Worcester Bosch
Grouped from the official meaning of each of the 6 codes above — not from opinion. The number is how many different fault codes point at that component.
| Component | Codes | Examples |
|---|---|---|
| Fan | 2 | C1, C7 |
| Flow Sensor | 2 | E2, E5 |
Parts & Prices
The parts most often involved in the Worcester Bosch faults listed above.
Prices and availability vary by region and are shown by the retailer, not by TroubleAtlas.
Diagnostic Tools
What an engineer uses to work through the codes on this page.
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Considering a New Heating System?
If your Worcester Bosch appliance is over 10 years old, replacing it with a modern condensing boiler or air-source heat pump could cut energy bills and remove the recurring faults listed on this page.
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