Ferroli SpA • Founded 1955 • Italy
Repair and spare parts for Ferroli boilers in Madrid
Specialized technical service for the entire Ferroli range in Madrid. Repair of Domiproject, Domina, Bluehelix, and Optimax boilers, with quick diagnostics and original spare parts.
💡 Direct response
Ferroli is an Italian heating manufacturer founded in 1955 in San Bonifacio (Verona). It is one of the largest European producers of gas boilers with 100% Italian in-house manufacturing. Its ranges Domiproject și Bluehelix (condensing) are very widespread in Spain, especially in new constructions between 2008 and 2022.
🏆 100% Italian manufacturing
In-house production in Italy. Internal quality control throughout the entire manufacturing chain.
⚡ Condensation class A
Bluehelix Tech and Domiproject F condensing. Compatible with smart thermostats via OpenTherm.
📦 Spare parts in stock
Original and approved equivalents. Express shipping 24-48h throughout Spain.
Ferroli product range
Condensing boilers
- Bluehelix Tech – high-efficiency combi condensing, stainless steel heat exchanger. Current range, widely installed in new builds since 2018.
- Domiproject F – sealed forced draught combi condensing boiler. The most installed Ferroli in Madrid.
- Econcept Tech – A++ class condensing, stainless steel body, integrated hydraulic module. Premium range.
- Optimax HE – condensing heating only. For installations with an independent DHW tank.
Standard boilers
- Domina Plus N - Wall-mounted forced draught boiler, standard range. Widely used in Madrid 1998-2012.
- Energy Top - Boiler for heating only, forced draught. For homes with independent DHW production.
- Atlas D – High-power atmospheric boiler, for collective installations or residential communities.
Most common fault codes
Ferroli boilers display warning codes with the letter A (lockout alarm) or E (error). The most common ones:
| Code | Meaning | Common cause |
|---|---|---|
| A01 | Ignition fault | No flame after 3 attempts: gas cut-off, electrode or valve |
| A02 | Overtemperature safety | Limit thermostat activated: pump or circulation blocked |
| A03 | Flow overtemperature | Temperature >95 °C in circuit: faulty NTC or pump |
| A05 | Heating NTC sensor | Flow temperature sensor faulty or not in contact |
| A06 | DHW NTC sensor | Defective domestic hot water sensor |
| A07 | Fan fault | Extractor motor blocked or speed sensor |
| E02 | High flue gas temperature | Blocked condensate or dirty heat exchanger |
Ferroli spare parts: own stock and 24-hour delivery
We maintain stock of the most requested Ferroli spare parts. Unavailable parts located and shipped in 24-48 hours:
- PCB control boards (Domiproject, Bluehelix, Domina)
- Grundfos circulating pumps and equivalents
- NTC sensors for heating, DHW, and flue gases
- SIT gas valves and approved equivalents
- Extractors and fan motors
- Stainless steel heat exchangers
- Ignition and ionisation electrodes
Frequently Asked Questions about Ferroli Boilers
The most common questions we receive about Ferroli boilers:
Yes. Ferroli is one of the largest European manufacturers of boilers, with 70 years of experience and 100% Italian production. Their Domiproject and Bluehelix models have a good reputation for reliability in the Spanish housing market. The availability of spare parts is good for current and recent models.
A01 indicates ignition fault with lockout. The boiler attempted to ignite several times without success. Most common causes: closed gas valve, low gas pressure, worn ignition electrode, defective gas valve, or PCB issues. Locate the reset button (usually the power button or a dedicated button), and if the lockout repeats, a technical visit is required.
Not exactly. The Domiproject F It is the standard condensing range, widely established in the Spanish market. The Bluehelix Tech It is the latest and most advanced range, with an integrated stainless steel monobloc heat exchanger, greater modularity, and better smart connectivity. They share many components but have differences in the PCB and the heat exchanger.
The most common leaks in Ferroli boilers are due to: automatic air vent gasket (limescale wear), 3 bar safety valve leaking (indication of high pressure or depleted expansion vessel), heat exchanger connections sau O-rings from the hydraulic group hardened by lime. In Madrid, the water hardness accelerates the wear of seals and sensors.
Annual inspection according to RITE regulations and manufacturer's recommendation. Includes cleaning of the burner, inspection of the heat exchanger, verification of the flue system, and issuance of the official certificate. For condensing boilers, the condensate drainage system is also checked.
The rating plate It is on the lower front or interior cover of the boiler. It indicates the exact model, the power in kW, and the serial number. If the plate is illegible or missing, send us a photo of the equipment by contact and we help you identify it to locate the correct spare parts.
Does your Ferroli boiler need servicing?
Indicate the model and the fault code. We will guide you before the visit.