BoilerFaultCodesWhat the manual says
Manufacturer manualSensor damaged or wiring cut
From this model's manual
Verified against the Ferroli/Ferroli Arena 30 C installation & service manual.
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 →
Boiler cover options
Avoid the next call-out bill
A cover plan would handle faults like Domestic hot water sensor faulty: no call-out fees, no surprise bills.
Approved partner
Get a quote →
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Affiliate links. We may earn a commission at no extra cost to you.
All 18 fault codes on the Arena 30 C
Seeing a different code? Every code this model can display, in one place.
AExcessive central heating outlet temperatureExcessive central heating return temperatureExternal probe faultyFFailed burner assembly ignitionFan faultFlue gas sensor faultyFlue safety device interventionHigh flue gas temperatureInsufficient water system pressureMicroprocessor faultyNo communication between main board and ignition devicesNo flame following the ignition phaseOutlet sensor faultyReturn sensor faultySafety thermostat activation