Viessmann Group • Founded 1917 • Allendorf, Germany
Viessmann boiler repair and spare parts in Madrid
Specialized technical service for the Viessmann range in Madrid. Repair of Vitodens, Vitopend, and Vitocal boilers with quick diagnostics and original spare parts.
💡 Direct response
Viessmann is a German family business founded in 1917 in Allendorf (Eder). It is considered the premium brand of boilers in Europe, with the largest share in the high-end residential segment. Its range Vitodens condensing is recognized for the durability of its stainless steel heat exchanger and reliability in extreme climates. In 2023, it was acquired by the Carrier Global group.
🏆 Premium range
Inox-Radial heat exchanger in stainless steel. Spare parts guaranteed for over 15 years.
⚡ Condensation class A++
Vitodens 100-W and 200-W, A++ range. MatriX-Plus technology with cylindrical modular burner.
📦 Spare parts in stock
Original and OEM equivalents. Express shipping 24-48h throughout Spain.
Viessmann product range
- Vitodens 100-W – combi condensing, standard range. The most installed in Spain. Inox-Radial heat exchanger.
- Vitodens 200-W – premium condensing with touch screen, wide modulation 1‑10 and Vitoconnect connectivity.
- Vitodens 300-W – High-end heating-only boiler for systems with an external DHW tank.
- Vitopend 100-W / 200-W - Conventional boiler, forced draught. Installed in homes in Madrid before 2010.
- Vitocal 100-A / 200-A – bomba de calor aire‑agua, gama actual de alto rendimiento.
Most common fault codes
| Code | Meaning | Common cause |
|---|---|---|
| F4 | Ignition fault | No flame: gas cut-off, electrode, or gas valve |
| F9 | Supply temperature | Defective NTC flow sensor |
| F7 | NTC short circuit | Temperature sensor in short circuit |
| EA | Safety lockout | Multiple unsuccessful ignition faults |
| C4 | Flow sensor | Supply temperature out of range |
| 0F | Low pressure | Water below 0.5 bar: refill or repair |
Viessmann spare parts: stock and 24-hour delivery
- PCBs (Vitodens 100-W, 200-W, Vitopend)
- Inox-Radial heat exchangers and gaskets
- Circulator pumps and hydraulic groups
- NTC sensors and electrodes
- Gas valves and extractors
Preguntas frecuentes sobre calderas Viessmann
Viessmann's premium price is justified by its Inox-Radial heat exchanger made of stainless steel (higher resistance to corrosion), its wide modulation MatriX burner (greater energy savings), and an average lifespan longer than the competition. In homes with intensive use, the total cost of ownership over 15 years is usually comparable to that of standard brands.
F4 indicates a ignition faultThe boiler attempted to ignite unsuccessfully. Check that the gas is open. If it is, the most common causes are a dirty ignition electrode or the gas valve. Reset by pressing the reset button (key icon). If the EA fault appears repeatedly, a technical visit is necessary.
In general, yes. The heat exchanger of stainless steel is more resistant to corrosion than aluminium, especially in areas with hard water like Madrid. With annual maintenance, the Vitodens can exceed the 20 years de vida sin averías graves.
Annual inspection, according to RITE regulations and manufacturer's recommendation. Includes cleaning of the MatriX burner, verification of the heat exchanger and condensate system. The official certificate is mandatory in communities and premises.
Does your Viessmann boiler need servicing?
Indicate the model and the fault code. We will guide you before the visit.