How much does it cost to fix Ideal error code 89 H......F........?

Typical repair cost for the Ideal 89 H......F........ fault is £120-250 including labour.

89 H......F........ High

Ideal 89 H......F........ Fault Code

Q: What does the Ideal 89 H......F........ fault code mean?

Your boiler has detected an issue with the flame during operation, causing it to shut down for safety.

Also written as 89HF — same fault.

The Ideal 89 H......F........ fault code means: your boiler has detected an issue with the flame during operation, causing it to shut down for safety.. It appears on 1 Ideal model in our database.

Technical description: FLAME DETECTION

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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Ideal models that show the 89 H......F........ fault code

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

Isar M30 / M100 Repair: £120-250

Source

Ideal 89 H......F........ 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