How much does it cost to fix Worcester Bosch error code Short Cycling?

Typical repair cost for the Worcester Bosch Short Cycling fault is £120-250 including labour.

Short Cycling Medium

Worcester Bosch Short Cycling Fault Code

Q: What does the Worcester Bosch Short Cycling fault code mean?

Your boiler is rapidly turning itself on and off because it is struggling to regulate its temperature or is getting conflicting signals from your wall thermostat.

Also written as SHORTCYCLING — same fault.

The Worcester Bosch Short Cycling fault code means: your boiler is rapidly turning itself on and off because it is struggling to regulate its temperature or is getting conflicting signals from your wall thermostat.. It appears on 7 Worcester Bosch models in our database.

Technical description: Burner rating incorrect; Boiler thermostat differential incorrect; External controls not operating correctly

Typical repair cost £120-250 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Worcester Bosch models that show the Short Cycling fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Worcester Bosch Short Cycling fault code information on this page is sourced and cross-checked against the official Worcester Bosch service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026