Low
-ll- on Worcester Bosch R30 HE Plus

Your boiler is performing a routine internal safety check to ensure internal water levels are correct and will return to normal operation automatically within 15 minutes.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Trap filling programme is active. The appliance remains at minimum heating output for 15 minutes to ensure the condensation trap is filled.

From this model's manual
Verified against the Worcester Bosch R30 He Plus installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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