Medium
232 on Worcester Bosch Greenstar 4000 GR4700iW 25 C

Your boiler has been temporarily switched off because an external safety device or controller has been triggered.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Boiler locked by external switc

From this model's manual
Verified against the Worcester Bosch/Worcester Bosch Greenstar 4000 Combi 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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Related fault codes

224View →233View →

All 92 fault codes on the Greenstar 4000 GR4700iW 25 C

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

2002012022032042082142242272282332342352372382422452492502512522532542582592622632652682692732812832843053063533573583603623631010101310171018101910211023103710651068107010711072107310741075107620852908291029142915291629202923292729282931294029462948294929502951295229572961 V2962 V2963 B2964 B2965 B2966 B2967 B2968 O2969 –2970 B2971 B2972 V3071 –

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