High
1! on Remeha Quinta 85

Your boiler has lost the ability to send signals between its internal controls, likely due to a loose wire or moisture inside the display unit.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Failure of internal communication bus: short circuit in flat cable: replace flat cable, water/condensation on display, possibly external EMC contamination

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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