How much does it cost to fix Ferroli error code LED 6 (C.H.)?

Typical repair cost for the Ferroli LED 6 (C.H.) fault is £120-250 including labour.

LED 6 (C.H.) High

Ferroli LED 6 (C.H.) Fault Code

Q: What does the Ferroli LED 6 (C.H.) fault code mean?

Your boiler has stopped working because it cannot detect enough water pressure or is struggling to read the temperature correctly, meaning it has safely shut itself down to prevent damage.

Also written as LED6CH — same fault.

The Ferroli LED 6 (C.H.) fault code means: your boiler has stopped working because it cannot detect enough water pressure or is struggling to read the temperature correctly, meaning it has safely shut itself down to prevent damage.. It appears on 2 Ferroli models in our database.

Technical description: C.H. sensor (34) short circuit or resistance lower than 500 ohm; C.H. limit thermostat (50) open circuit (pump will run); C.H. water pressure low (114 open circuit).

Typical repair cost £120-250 (including labour)

Engineer required

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

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Ferroli models that show the LED 6 (C.H.) fault code

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

Source

Ferroli LED 6 (C.H.) 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