Medium
1065 B on Worcester Bosch Greenstar 8000 Style GR8700iW 35 SB

Your boiler's internal water pressure sensor is faulty or disconnected, meaning the system cannot accurately read its water levels.

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

Pressure sensor defective or not connected

From this model's manual
Verified against the Worcester Bosch/Worcester Bosch Greenstar 8000 Life System 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

EAView →2243View →CE 16View →

All 32 fault codes on the Greenstar 8000 Style GR8700iW 35 SB

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

200201202203204208224227228305306306 V815815 B1017 W1022 B1068 W1075 W1076 W2920 V2927 B2946 V2948 B2950 B2963 B2964 B2965 B2966 B2967 B2970 B2971 B

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