52 High

Daikin 52 Fault Code

The Daikin 52 fault code means: your boiler is having trouble reading the temperature of your hot water tank, which means it cannot heat your water correctly.. It appears on 1 Daikin model in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: DHW storage tank sensor error
Typical repair cost £120-£220 (including labour)

Engineer required

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

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Daikin models that show the 52 fault code

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

Source

Daikin 52 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 7 July 2026