How much does it cost to fix Daikin error code 10-64?

Typical repair cost for the Daikin 10-64 fault is £250-450 including labour.

10-64 High

Daikin 10-64 Fault Code

Q: What does the Daikin 10-64 fault code mean?

Your boiler has detected a communication issue with its internal gas control system and has shut down as a safety precaution.

Also written as 1064 — same fault.

The Daikin 10-64 fault code means: your boiler has detected a communication issue with its internal gas control system and has shut down as a safety precaution.. It appears on 1 Daikin model in our database.

Technical description: Gas valve circuit error, try resetting the boiler

What causes the Daikin 10-64 fault?

This fault occurs when the boiler's main computer loses the ability to safely regulate the flow of gas to the burner. It is typically caused by an electrical failure within the gas valve itself or a breakdown in the wiring that carries signals between the valve and the control board. For safety, the system instantly stops operating because it can no longer guarantee the correct amount of fuel is being delivered.

Typical repair cost £250-450 (including labour)

DIY fix possible

Locate the reset button or dial on the front control panelPress and hold the reset button for 5 secondsWait for the boiler to complete its restart sequence to see if the flame ignites

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Daikin models that show the 10-64 fault code

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

D2CND Repair: £250-450

Source

Daikin 10-64 fault code information on this page is sourced and cross-checked against the official Daikin service / installation manuals for each affected model.

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