The boiler is the heart of the central heating system. Choosing a high-quality model is crucial for long-lasting, comfortable, and efficient operation. Boilers from the international brand Ferroli have been known for years as reliable and easy-to-use devices. If any technical problem arises - regardless of whether the cause lies with the user, the installation, or the boiler itself, the device will immediately signal an error or malfunction by displaying the appropriate code. We present a list of the most common errors along with proven solutions.
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What are error codes?
Error codes are alphanumeric messages that appear on the boiler's display or are signaled by LEDs, informing the user about various malfunctions in the operation of the heating device - both minor issues and serious failures. For users and installers, error codes are invaluable diagnostic tools. They allow for quick identification of the problem and rectification of the fault.
The two main groups of errors in Ferroli boilers
Error codes in Ferroli boilers can be divided into two main groups: • A codes + two digits, • F codes + two digits.
A type error codes in Ferroli boilers and recommended solutions
| Error Code | Problem | Possible Cause | Recommended Solution |
|---|---|---|---|
| A01 | Burner Lockout | No flame presence, ignition failure, or incorrect power setting | Check the condition of the ignition electrode and fuel availability |
| A02 | Flame Signal with Burner Off | Faulty ignition electrode or card | Check the wiring of the ignition electrode and the card |
| A03 | Activation of Overtemperature Protection | Exceeding the permissible temperature value | Check the pump and valves |
| A08 | Overheating Protection Activated | Faulty heating sensor, lack of water circulation in the system, or air presence in the installation | Check the settings and operation of the heating sensor and circulation pump, and bleed the system if necessary |
| A09 | Gas Valve Fault | Gas supply issue | Check and possibly replace the gas valve |
F type error codes in Ferroli boilers and recommended solutions
| Error Code | Problem | Possible Cause | Recommended Solution |
|---|---|---|---|
| F05/F04 | Incorrect Plate Parameters | Electronics failure, fan malfunction, plate failure, or sensor failure | Immediate contact with service is recommended |
| F07/F13 | Wiring Fault | Faulty wiring of temperature sensors | Check and repair the wiring |
| F37 | Incorrect Water Pressure in the System | System drained or unconnected or faulty water pressure switch | Check the pressure sensor or refill the system with water |
| F42 | Heating Sensor Fault | Sensor or wiring failure | Check and replace the sensor or wiring |
| F50 | Gas Valve Failure | Gas supply issue | Check the gas system |
Other common error codes in Ferroli boilers
Ferroli boilers and furnaces may also display other error codes, particularly:
- EE – lack of flue gas draft,
- E3 – ignition failure,
- D1 – waiting mode for hot water,
- D2 – waiting mode for heating to the set temperature.
Ferroli boiler faults signaled by LEDs
As mentioned at the beginning, in some models of Ferroli boilers, instead of displayed error codes, malfunctions are signaled by three LEDs: green, yellow, and red. The LEDs emit light in various combinations, thus informing about specific errors. When they light up:
- the red LED – indicates a lack of burner ignition or activation of overheating protection;
- the green LED – indicates the presence of flame with the burner on or (if the LED is blinking) a problem with the air pressure switch;
- the yellow LED – signals too low pressure in the system;
- the yellow and red LEDs – indicate a fault with the supply sensor or (if the LEDs pulse alternately) activation of the exchanger protection;
- the green and yellow LEDs – signal a fault with the domestic hot water (C.W.U.).
Your Ferroli boiler shows an error code, and you don't know what to do?
If you have any problems diagnosing or rectifying the fault yourself, it is better not to act on your own. Authorized Ferroli service points are located throughout Poland, where you can get professional assistance in repairing the boiler. Additionally, Ferroli's technical department provides free support to its customers.
It is worth knowing that Ferroli boilers, especially those equipped with advanced, intelligent automation, such as the Ferroli BIOPELLET PRO 12 pellet boiler, are practically fault-free and maintenance-free devices.
FAQ
1. What are the error codes displayed by Ferroli boilers?
They are combinations of letters and numbers that appear on the display or are signaled by LEDs. They inform the user or installer about various technical problems with the device. They enable quick diagnosis and rectification of the fault.
2. What are the main groups of error codes in Ferroli boilers?
Error codes in Ferroli boilers are divided into two main groups: codes starting with the letter “A” and those starting with the letter “F”. The latter usually signal more serious failures.
3. What to do when a Ferroli boiler shows an error code?
You can try to diagnose the problem and rectify the fault yourself. In case of any difficulties or doubts, or a serious boiler failure, contact an authorized Ferroli service point.