How much does it cost to fix Vokera error code Check JP1?

Typical repair cost for the Vokera Check JP1 fault is £120-250 including labour.

Check JP1 High

Vokera Check JP1 Fault Code

Q: What does the Vokera Check JP1 fault code mean?

Your boiler has detected an internal configuration error, likely due to a loose link on the main computer board, which is preventing it from starting up correctly.

Also written as CHECKJP1 — same fault.

The Vokera Check JP1 fault code means: your boiler has detected an internal configuration error, likely due to a loose link on the main computer board, which is preventing it from starting up correctly.. It appears on 1 Vokera model in our database.

Technical description: Solid LED status (Yellow/Red)

Typical repair cost £120-250 (including labour)

Engineer required

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

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Vokera models that show the Check JP1 fault code

Click a model for the full fault code list and model-specific repair notes.

Compact 24HE Repair: £120-250

Source

Vokera Check JP1 fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.

Vokera Compact 24HE manual (PDF)

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026