BoilerFaultCodes A
Permanent shutdown; requires manual reset by pressing the 'R' button
Ferroli Arena 30 C Fault codes & diagnostics
18 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Combi Natural Gas 30 kW Discontinued
GC Number 47-267-25
Download the Ferroli Arena 30 C manual
PDF
The fault code is already on your display
Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →
Severity at a glance
Each cell = one fault code. Hover to identify. 18 Unrated
Just want the most common Ferroli Arena 30 C faults?
The top 6 problems in plain English — with causes, DIY checks and repair costs.
Fault codes
All 18 documented codes
Tap any card for details
Domestic hot water sensor faulty
Sensor damaged or wiring cut
Excessive central heating outlet temperature
Pump blocked, Pump faulty
Excessive central heating return temperature
No system circulation, Domestic hot water heat exchanger dirty or blocked
External probe faulty
Sensor damaged or wiring short-circuited
F
Temporary shutdown; resets automatically when the value returns to the normal operating range
Failed burner assembly ignition
No gas or low gas pressure, Ignition or detection electrode fault, Defective gas valve
Fan fault
Fan not powered, Defective fan
Flue gas sensor faulty
Sensor damaged or wiring cut
Flue safety device intervention
Flue partially blocked, or insufficient
High flue gas temperature
Flue partially blocked or insufficient
Insufficient water system pressure
System empty
Microprocessor faulty
Microprocessor operation faulty
No communication between main board and ignition devices
Wiring cut or incorrect between main board and ignition devices
No flame following the ignition phase
Air/flue pipes blocked, Air in gas supply, Low gas pressure, PCB
Outlet sensor faulty
Sensor damaged or wiring cut
Return sensor faulty
Sensor damaged or wiring cut
Safety thermostat activation
Outlet sensor not active, No system circulation