Repair and spare parts for Cointra boilers in Madrid
Repair and spare parts inquiry for Cointra in Madrid. Please provide the model, the symptom, and your location to confirm the scope. Independent multi-brand service from the manufacturer.
What do we need to check your Cointra boiler?
To inquire about a Cointra repair, identify the complete model of the appliance and describe the symptom. A brand or an isolated code does not confirm a compatible spare part. Uniclima offers independent multi-brand support; this page does not certify affiliation with the manufacturer's official service.
- Identify the equipment
- Please provide an exterior photograph of the label, if accessible, along with the model of the involved units.
- Describe the problem.
- Indicate which function is failing, since when, and the exact warning that appears.
- Confirm the scope.
- Add location and access; diagnosis, spare parts, travel, and date are confirmed for each case.
Boiler services
Cointra product range
Instantaneous water heaters
- Thdb series - Instantaneous water heater for butane/propane gas. The most commonly installed in homes without central heating.
- Discovery – High-power sealed water heater, current range.
- Optima N – Instantaneous natural gas water heater, thermostatic control.
- Stardion – Electronic ignition water heater, low standby consumption.
Heating boilers
- Master – wall-mounted combi boiler, forced draught. Standard residential range.
- Nova – Condensing combi boiler, class A. Current range with highest efficiency.
Most common fault codes
| Code | Meaning | Common cause |
|---|---|---|
| E1 | Ignition fault | Gas cut off, electrode or gas valve |
| E2 | Overtemperature | Limit thermostat activated |
| E3 | NTC sensor | Defective temperature sensor |
| E5 | Fan fault | Blocked fan (forced draught boilers) |
| E7 | Low pressure | Water below minimum limit |
Cointra spare parts
- PCBs for Cointra water heaters and boilers
- Thermocouples and ionisation electrodes
- Gas valves and NTC sensors
- Circulator pumps for heating models
- Heat exchangers and gaskets
Frequently asked questions
Does Cointra only make water heaters or also boilers?
Cointra is mainly known for its gas water heaters, but it also manufactures heating boilers (Magister and Nova ranges). Cointra water heaters are the most common equipment in homes in Madrid that have natural gas but no central heating.
Why won't my Cointra water heater ignite, what could it be?
The most common causes are: defective thermocouple (in models with manual pilot), dirty ignition electrode (in piezoelectric models), gas valve blocked or simply gas cut offIf the pilot light ignites but goes out when the button is released, it is almost always the thermocouple.
How often should a Cointra water heater be serviced?
Gas water heaters require an annual inspection. Atmospheric water heaters (with chimney flue) also need an inspection of the flue duct each year, as soot accumulation can be dangerous.
