DM005 Low

Baxi DM005 Fault Code

The Baxi DM005 fault code means: your boiler is reporting a reading from the solar water heating sensor, which is likely just an information display rather than a breakdown.. It appears on 1 Baxi model in our database.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description: Solar system DHW temperature °C

Engineer required

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

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Baxi models that show the DM005 fault code

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

Source

Baxi DM005 fault code information on this page is sourced and cross-checked against the official Baxi service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026