Cointra Group • Zaragoza • Spain
Repair and spare parts for Biasi boilers and water heaters in Madrid
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Biasi It is a Spanish brand specialized in gas water heaters and heating boilers, linked to the Cointra group. Its instantaneous water heaters and conventional boilers are present in many homes in Madrid, especially in buildings constructed between 1975 and 2005.
Biasi product range
- TME / TEI water heaters – Natural gas instantaneous water heaters. The most installed in Madrid.
- TMB series – Butane gas water heater, for homes without a natural gas network.
- Classic – conventional heating boilers, forced draft.
- Confort Plus – Sealed instant water heater, greater power and safety.
Most common fault codes
| Code | Meaning | Common cause |
|---|---|---|
| E1 | Ignition fault | Gas, thermocouple or faulty electrode |
| E2 | Overtemperature | Limit thermostat activated |
| E3 | Fan fault | Blocked fan (sealed models) |
| E5 | NTC sensor | Defective temperature sensor |
Biasi spare parts: stock and 24-hour delivery
Spare parts for Biasi water heaters and boilers. Thermocouples, electrodes, and gas valves. 24‑48 h.
View Biasi spare parts catalogueFrequently Asked Questions
Biasi is linked to the Cointra group and shares some components and platforms. However, they are distinct brands with their own models. Many minor spare parts (thermocouples, electrodes) are compatible between both brands.
The most common issue with Biasi water heaters with a pilot light is the defective thermocoupleThe pilot light ignites but goes out when the button is released. If the ignition is automatic, it could be the piezo electrode or the gas valve. The thermocouple is an inexpensive part and the most commonly replaced in this type of equipment.
Annual inspection for sealed water heaters. Atmospheric ones require inspection of the flue duct every year due to safety regulations.
Does your Biasi boiler need servicing?
Indicate the model and the fault code. We will guide you before the visit.