Ferroli boiler error codes

The international company Ferroli has been designing, developing and manufacturing high-quality equipment for years. More than 50 years, Ferroli produces climatic, heating and auxiliary equipment, including boilers. The equipment Ferroli is distinguished by reliability, safety, efficiency, modern design and low prices. The company carries out technical, service and advertising support. It implies, inter alia, providing information on possible malfunction of its equipment. In particular, see error codes boiler Ferroli table below.

Ferroli DOMIcompact F 30 boiler error codes

FaultPossible causeCure
F1 - No burner ignition• No gas• Check the regular gas flow to the boiler and the air has been eliminated from the pipes.
• Detection or ignition electrode fault• Check that the electrodes are correctly positioned and free of any deposits
• Defective gas valve• Check and change the gas valve
• Faulty full auto control• Check and change full auto
• System gas pressure insufficient• Check the system gas pressure
• Air-trap blocked• Check and eventually replace the air- trap
F2 -Flame detected with the burner off• Ionization electrode defected• Check the ionizing electrode wiring
• P.C.B. defected• Check the P.C.B.
F3 - 100°C Safety thermostat trips• Flow sensor not active or located correctly• Check the correct positioning
• No system circulationand operation of the flow sensor
• Check the circulator, the by-pass and the valve in the system
F5 - Fan fault• Fan connection or fan damaged, debris in fan• Check the wiring and check the fan
• Clear debris if required
F8 - Flame circuit fault• Ionisation probe fault• Check and rf necessary change the ionisation probe
• Mains interference• Check the earthing
F9 - No communication between the full auto and the gas valve• P.C.B. not connected• Connect the P.C.B. to the gas valve
• Damaged gas valve• Change the gas valve
F10 to F22 - Microprocessor fault• Microprocessor operating fault• Cut off and restore the electricity supply. If the trouble remains, check and/or change the main P.C.B.
F25 - Software fault• Software operating fault
F26 - Flame absence after ignition phase• Ionization electode fault• Check ionization electrode position and eventually replace it
• Flame instable• Check the burner
• Gas valve Offset fault• Verify Offset setting to the minimum power
• Air inlet/flue outlet pipes blocked• Take blockage off the chimney, flue outlet pipes and air inlet pipes
• Air-trap blocked• Check and eventually clean the air- trap
F30 - CH flow sensor fault• Sensor damaged or short circuited• Check the wiring or change the sensor
F31 - CH flow sensor fault• Sensor damaged or wiring broken
F34 - Supply voltage under 190V. or over 250V.• Electric mains fault• Check the electrical system
F35 - Irregular mains frequency• Electric mains fault
F36 - Main P.C.B. fault• Faulty main P.C.B.• Change the P.C.B.
• Water on P.C.B.
F37 (error solution F37) Incorrect system water pressure• Pressure too low• Fill the system
• Sensor damaged• Check the sensor
F39 - External probe fault• Sensor damaged or short- circuited• Check the wiring or replace the sensor
F40 - Incorrect system water pressure• Pressure too high above 3-5 bar• Check the fill loop not passing
• Check the wiring and sensor
• Check the safety valve
• Check the expansion vessel
F43 - Return sensor fault• Sensor damaged or wiring shorted• Check the wiring or change the sensor
F44 - Return sensor fault• Sensor damaged or wiring broken
F45 - Flue gas sensor fault• Sensor damaged or wiring shorted
F46 - Flue gas fault• Sensor damaged or wiring broken
F47 - Probe pressure fault• Wiring interrupted• Check the wiring
• Sensor damaged• Replace the sensor

Ferroli T-ONE boiler error codes

FAULT CODEFAULTPOSSIBLE CAUSECURE
A01No burner ignitionNo gasCheck the regular gas flow to the boiler and that the air has been purged from the pipes
Detection or Ignition electrode faultCheck that the electrodes are correctly positioned and free of any deposits
Defective gas valveCheck and change the gas valve
Incorrect inlet gas pressureCheck inlet gas pressure
Siphon obstructedCheck and if necessary change the siphon
A02Flame detected with the burner offIonization electrode defectiveCheck the ionizing electrode wiring
Main board defectiveCheck the PCB
A03High limit protectionFlow temperature sensor not active or correctly locatedCheck the correct positioning and operation of the flow sensor
No system circulationCheck pump and radiator valves present in the system Check operation of the internal by-pass
A04Flue gas faultFault F07 happened 3 times in the last 24 hoursCheck the flue
A05Fan problemTachometer signal interrupted for 1 hour or longerCheck the wiring and the fan
A06No flame after the ignition phase (6 times in 4 minutes)Detection electrode faultCheck that the electrodes are correctly positioned and if necessary change it
Flame unstableCheck the burner
Incorrect valve gas OffsetCheck the Offset at the minimum power
Flue gas circuit obstructedCheck if flue gas circuit is free
Siphon obstructedCheck and if necessary change the siphon
A41Flow sensor disconnectedSensor disconnectedCheck the correct positioning and operation of the flow sensor
F07High fume temperatureThe exchanger probe detects and excessive temperature for over 2 minutesCheck the exchanger
F10Flow sensor faultSensor damaged or short circuited Sensor damaged or wiring brokenCheck the wiring or change the sensor
F11Return sensor faultSensor damaged or viring shorted Sensor damaged or wiring broken
F12DHW sensor faultSensor damaged Wiring shorted Wiring disconnected
F13Exchanger probe faultSensor damaged or viring shorted Sensor damaged or wiring broken
F14Flow sensor faultSensor damaged or short circuited Sensor damaged or wiring broken
F15Fan problemTachometer signal interrupted, fan connectionCheck the wiring and the fan
Fan damaged, debris in fanCheck the fan. clean debris
F34Supply voltage under 170VElectric supply problemCheck the electrical system
F35Irregular mains frequency
F37 (error solution F37)Incorrect system water pressurePressure too lowFill the system
Sensor damagedCheck the sensor
F39External probe faultSensor damaged or short-circuitedCheck the wiring or change the sensor
F42Flow sensor faultSensor damagedChange the sensor