Low
Fd on British Gas RD 430i

Your boiler has gone into a temporary lockout mode because the reset button was held down or pressed when it wasn't necessary.

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

Reset button pressed by mistake.

Shared across the RD 430i 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

Switch off the electrical power supply to the boiler at the fused spur switch.Wait for 30 seconds.Switch the power back on to clear the fault code and restart the boiler.

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Related fault codes

F1View →F2View →

All 32 fault codes on the RD 430i

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

-II-0.02.02.42.52.75.07.030405060708090100A1b1C1C4C6d3E2E9EAF7FAFCP1P2P3

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