How much does it cost to fix Remeha error code 36?

Typical repair cost for the Remeha 36 fault is £120-220 including labour.

36 High

Remeha 36 Fault Code

Q: What does the Remeha 36 fault code mean?

Your boiler has lost the ability to monitor the temperature of the water effectively because a internal connection or sensor has failed, so it has shut down to prevent damage.

The Remeha 36 fault code means: your boiler has lost the ability to monitor the temperature of the water effectively because a internal connection or sensor has failed, so it has shut down to prevent damage.. It appears on 3 Remeha models in our database.

Technical description: Flow temperature sensor error (not connected or defective)

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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Remeha models that show the 36 fault code

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

Source

Remeha 36 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 27 April 2026