A02.46 High

Remeha A02.46 Fault Code

Also written as A0246 — same fault.

The Remeha A02.46 fault code means: your boiler's internal communication system is overloaded, preventing it from functioning correctly.. It appears on 1 Remeha 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: Full Can Device Adm
Typical repair cost £150-300 (including labour)

Engineer required

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

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Remeha models that show the A02.46 fault code

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

Source

Remeha A02.46 fault code information on this page is sourced and cross-checked against the official Remeha service / installation manuals for each affected model.

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