How much does it cost to fix Ferroli error code F30?

Typical repair cost for the Ferroli F30 fault is £90-160 including labour.

F30 High

Ferroli F30 Fault Code

Q: What does the Ferroli F30 fault code mean?

Your boiler's internal thermometer that measures the temperature of the water being sent to your taps and radiators has developed a fault, preventing the system from heating up correctly.

The Ferroli F30 fault code means: your boiler's internal thermometer that measures the temperature of the water being sent to your taps and radiators has developed a fault, preventing the system from heating up correctly.. It appears on 6 Ferroli models in our database.

Technical description: Delivery sensor fault

Typical repair cost £90-160 (including labour)

Engineer required

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

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Ferroli models that show the F30 fault code

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

Arean Repair: £120-200
Arena 30A Repair: £120-220
Econcept 100 Repair: £120-220
Maxima 35 S Repair: £150-250
Optima 201 Repair: £120-200
Optimax Repair: £90-160

Source

Ferroli F30 fault code information on this page is sourced and cross-checked against the official Ferroli service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026