How much does it cost to fix Remeha error code 43?

Typical repair cost for the Remeha 43 fault is £150-300 including labour.

43 High

Remeha 43 Fault Code

Q: What does the Remeha 43 fault code mean?

Your boiler's internal computer has detected conflicting settings that prevent it from operating safely, effectively causing it to 'freeze' for protection.

The Remeha 43 fault code means: your boiler's internal computer has detected conflicting settings that prevent it from operating safely, effectively causing it to 'freeze' for protection.. It appears on 3 Remeha models in our database.

Technical description: Parameters out of range

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 43 fault code

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

Gas 610 Eco Pro Repair: £100-250
Quinta 30 Repair: £120-250
Selecta Combi Repair: £150-300

Source

Remeha 43 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