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Common Problems in Central Heating Systems and How to Fix Them

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Central heating systems are necessary for keeping your homes warm and comfortable, especially during colder months. However, like any other mechanical system, they develop issues over time. Understanding these common problems and knowing how to solve them will save you time, money and a lot of stress. 

In this article, you’ll learn about some common central heating issues and how to solve them.

Continue reading to learn more:

1.Radiators Not Heating Up

One common problem with central heating systems is that they stay cold or don’t heat evenly. This issue may occur due to trapped air inside the radiator which prevents hot water from circulating properly.

Solution 

You can get rid of the trapped air by turning off the heating, locating the bleed valve (at the top of the radiator) and using a radiator key to open it slightly. You should hear a hissing sound as the trapped air escapes. Once the water starts leaking out, close the valve. Turn the heating back on and the radiator should begin warming up evenly.

2.Boiler Not Turning On

When the boiler doesn’t turn on, it can affect the entire heating system. It could be due to thermostat issues to power supply problems.

Solution 

Check if the thermostat is set to the correct temperature and if the power supply to the boiler is intact. Sometimes, a simple reset can fix the problem. If the boiler still doesn’t respond, it might have an issue with the ignition or pilot light. In this case, call a professional to help resolve the problem.

3.Leaking Radiators or Pipes

Leaks are often caused by damaged or rusted pipes, radiators or joints. They can lead to a drop in water pressure and cause your heating not to work properly.

Solution 

If you notice water around a radiator or pipe, find the source of the leak. Tighten any loose connections with a wrench but be careful not to over-tighten as it could worsen the leak. For minor leaks, you can use a sealant. 

4.Thermostat Issues

Thermostats are crucial for controlling the heating system and when they malfunction, it can lead to irregular heating or prevent the system from turning on.

Solution 

Check the thermostat settings to ensure they are correct. Try changing the batteries if it’s battery-powered. If it’s an older thermostat, consider upgrading the model to a programmable or smart thermostat, which can be better to control.

5.Low Boiler Pressure

Low boiler pressure can cause the system to fail to produce heat. Low pressure can be caused by leaks, bleeding radiators or recent repairs.

Solution 

Check the pressure gauge on the boiler which is usually located on the front panel. If the reading is below 1 bar, it’s too low. Re-pressurize the boiler by opening the filling loop valve until the gauge reads between 1 and 2 bars. If you’re unsure how to do this, contact a professional.

Conclusion

Regular maintenance can help prevent many of these issues, but whenever these problems arise, understanding the solutions explained in this article can help you restore your central heating system to its perfect condition. However, do not attempt major repairs on your own, always consider reaching out to a professional to ensure safe repairs.

New business boiler installations need not be complicated

At Zoom247, we’re here to guide you every step of the way, both during the new installation and maintaining and repairing it for many years to come.

Reach out to us to learn more about how we can assist with your commercial boiler installation and repair needs.