What does the Worcester Bosch EH 258 fault code mean?

Your boiler's internal computer or control unit has suffered an electrical failure and can no longer manage the heating process.

How much does it cost to fix Worcester Bosch error code EH 258?

Typical repair cost for the Worcester Bosch EH 258 fault is £280-550 including labour.

Manufacturer manual

Control box or the heat control module (HCM) is defective – HCM or control box connections need to be checked

Shared across the range

This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Boiler cover options

A cover plan would handle faults like EH 258: no call-out fees, no surprise bills.

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