Error code

Worcester Bosch Boiler Fault Code EA

Last updated: 2 April 2026Boiler faults need a cautious approach

Quick answer

EA

high severity

The boiler has failed to ignite properly

First safe action

Check whether other gas appliances appear to have lost supply, without dismantling the boiler.

Meaning

Worcester Bosch boiler fault code EA usually means the boiler could not ignite or complete its startup sequence correctly.

Likely causes

Temporary gas supply interruption
Ignition or electrode fault
Control problem affecting startup

Safe first checks

Check whether other gas appliances appear to have lost supply, without dismantling the boiler.
If the manufacturer permits a user reset, try the standard reset process once.
Stop further reset attempts if the fault returns.

How to reset

Follow the reset instructions shown on the boiler control panel or in the manual.
If the code reappears after one reset, book a qualified engineer.

When to call an engineer

If the fault returns after one reset, stop there and arrange a Gas Safe registered engineer.

Safety warning

Do not remove the boiler casing or try to work on gas, ignition, or combustion components yourself.

Useful hub links

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Related fault codes

A1 for Worcester Bosch Boiler

Water circulation or pump performance issue

C6 for Worcester Bosch Boiler

Fan, flue, or air pressure sensing problem

D1 for Worcester Bosch Boiler

Control board or internal communication fault

CE for Worcester Bosch Boiler

Fan, flue, or air pressure sensing problem

E9 for Worcester Bosch Boiler

The boiler has overheated or hit a high temperature limit

208 for Worcester Bosch Boiler

A boiler sensor is giving an invalid reading

Relevant guides

Boiler Fault Codes: When to Stop and Call a Professional

Boiler issues need a more cautious approach than most white goods, especially where gas, combustion, or repeated lockouts are involved.

Frequently asked questions

Can I keep resetting a Worcester Bosch boiler with EA?+

No. If EA returns after one standard user reset, stop there and arrange a qualified engineer if the manual gives no safe next step.

Is EA something I can repair myself?+

Boiler faults should be treated cautiously. Stay within the user checks in the manual, and leave gas, combustion, and internal boiler repairs to a qualified professional.