Low
2 pulses on Worcester Bosch 24 RSF

Your boiler is currently stuck in a manual test mode typically used by engineers, which is preventing it from running its normal heating cycles.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Check service mode switch is in minimum position

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.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Locate the white control panel on the front of the boiler.Identify the small service or 'mode' switch, often behind a flap.Ensure the switch is moved back to the 'Normal' or 'Minimum' operating position rather than the 'Max' test setting.

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Avoid the next call-out bill

A cover plan would handle faults like 2 pulses: no call-out fees, no surprise bills.

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All 93 fault codes on the 24 RSF

Seeing a different code? Every code this model can display, in one place.

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