How much does it cost to fix Ideal error code Flashing lamp?

Typical repair cost for the Ideal Flashing lamp fault is £120-250 including labour.

Flashing lamp High

Ideal Flashing lamp Fault Code

Q: What does the Ideal Flashing lamp fault code mean?

Your boiler has detected that the water inside the unit is getting too hot, so it has safely shut itself down to prevent damage.

Also written as FLASHINGLAMP — same fault.

The Ideal Flashing lamp fault code means: your boiler has detected that the water inside the unit is getting too hot, so it has safely shut itself down to prevent damage.. It appears on 1 Ideal model in our database.

Technical description: Excessive temperature on primary circuit

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 Flashing lamp fault code

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

Mini Repair: £120-250

Source

Ideal Flashing lamp 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