How much does it cost to fix Ideal error code V/J?

Typical repair cost for the Ideal V/J fault is £90-250 including labour.

V/J High

Ideal V/J Fault Code

Q: What does the Ideal V/J fault code mean?

Your boiler has detected an issue with its electrical grounding or wiring, which is a safety mechanism that prevents electrical faults.

Also written as VJ — same fault.

The Ideal V/J fault code means: your boiler has detected an issue with its electrical grounding or wiring, which is a safety mechanism that prevents electrical faults.. It appears on 1 Ideal model in our database.

Technical description: Earth connection

Typical repair cost £90-250 (including labour)

Engineer required

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

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Ideal models that show the V/J fault code

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

Falcon Gte Repair: £90-250

Source

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

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026