Vaillant ECOTEC-PRO-28 user manual

The recommended setting for the temperature of the Vaillant Ecotec Pro 28 boiler is typically between 60°C to 65°C. However, it is important to note that the specific temperature setting may vary depending on your personal preferences and requirements. It is advisable to consult the user manual or contact a qualified heating engineer for the most accurate information and guidance.

The Vaillant Ecotec Pro 28 was first released in 2012, so it is approximately 9 years old as of 2021.

There can be several reasons why your Vaillant Ecotec Pro 28 heating is not working. Here are a few possible causes:
1. Power supply: Ensure that the boiler is receiving power by checking if the display is on and that there are no tripped circuit breakers or blown fuses.
. Gas supply: Make sure that there is gas supply to the boiler. Check if other gas appliances are working to confirm the gas supply is not the issue.
3. Pressure: Check the boiler pressure gauge to ensure it is within the recommended range (usually between 1 and 1.5 bar). If the pressure is too low, you may need to top up the system.
4. Thermostat settings: Verify that the thermostat is set to the correct temperature and heating mode. It may be necessary to increase the thermostat temperature or switch to heating mode if it is currently set to off.
5. Airlock: If there is air trapped in the system, it can prevent the proper circulation of water and result in no heating. In this case, you may need to bleed the radiators or call a professional to remove the airlock.
6. Faulty components: It is possible that certain components within the boiler, such as the pump, diverter valve, or sensors, are faulty. In this case, it is recommended to contact a qualified technician to diagnose and fix the issue.
Always refer to the user manual or contact a professional heating engineer if you need further assistance or if the issue persists.

There could be several reasons why your Vaillant Ecotec Pro 28 boiler is not firing up. Some possible causes and solutions include:
1. Faulty thermostat: Check the room thermostat settings and ensure it is calling for heat. If necessary, replace the thermostat.
2. No power supply: Make sure the boiler is receiving power. Check if the power switch is turned on and if there are any tripped breakers or blown fuses. If the power supply is the issue, contact a professional electrician.
3. Low water pressure: Check the boiler's pressure gauge. If the pressure is below the recommended level (typically between 1 and 1.5 bar), you may need to re-pressurize the system.
4. Frozen condensate pipe: If it's cold outside and the condensate pipe is frozen, your boiler may not fire up. Thaw the pipe using warm water or a hot water bottle, and insulate it to prevent future freezing.
5. Faulty ignition component: The boiler's ignition electrode or spark generator may be faulty. This could be due to wear and tear or debris buildup. You may need to clean or replace the faulty component to resolve the issue.
6. Blocked flue or air intake: If the flue or air intake is blocked, the boiler may not ignite. Check for any debris, nests, or obstructions and clear them.
7. Faulty gas supply: Ensure that the gas supply to the boiler is turned on and the gas valve is open. If you suspect there is an issue with the gas supply, contact a qualified Gas Safe registered engineer to investigate.
If you have attempted these troubleshooting steps but your boiler still won't fire up, it is recommended to contact a qualified engineer or the Vaillant customer support for further assistance.