Medium
JP9 on Vokera Linea range

Your boiler's internal settings have become confused due to a misplaced internal electronic pin, which is preventing the heating system from switching on correctly.

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

C/H Delay Timer jumper

Shared across the Linea 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.

Engineer required

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

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All 14 fault codes on the Linea range

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

01020304050607C1COJP6JP8L1L2

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