Medium
OT ERROR on Remeha Quinta 85

Your boiler is temporarily prioritizing its internal frost protection system over your normal heating settings, causing a communication mix-up.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

OpenTherm communication error (caused by frost thermostat override)

Engineer required

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

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Related fault codes

E01View →E02View →

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