Skip to content

7 Most Common Boiler Problems and Why They Happen

boiler

Share This Post

Boilers are an essential part of many homes and businesses, providing heat and hot water. However, like any mechanical device, boilers can experience problems. Understanding the most common boiler problems and why they occur can help you prevent them from happening or address them quickly if they do.

1. Low Pressure 

One of the most common boiler problems is low pressure. Low pressure can cause your heating system to not work effectively or at all. It can also cause the boiler to shut down. Low pressure can be caused by a leak in the system or the pressure release valve not working correctly.

2. Leaks 

Leaks can occur in both the heating system and the boiler itself. Common areas for leaks include the pipes, valves, and pump. Leaks can cause water damage and lead to an inefficient heating system. In addition, leaks can cause the boiler’s pressure to drop, leading to the low-pressure problem mentioned earlier.

3. Kettling 

Kettling is a noise that sounds like a kettle boiling. It is caused by a build-up of limescale or sludge in the boiler’s heat exchanger. The build-up restricts water flow, causing the water to boil and steam to be released. Kettling can cause damage to the boiler’s heat exchanger and increase your energy bills.

4. Pilot Light Goes Out 

The pilot light is a small flame that ignites the gas to heat the water. If the pilot light goes out, the boiler will not work. Common causes of pilot lights going out include a faulty thermocouple or a draft in the room where the boiler is located.

5. Thermostat Problems 

Thermostat problems can cause your heating system to not work correctly. The thermostat regulates the temperature in your home or business. If it is not working correctly, it can cause the boiler to turn off and on frequently or not turn on at all.

6. Frozen Condensate Pipe 

If your boiler is a high-efficiency condensing boiler, it will have a condensate pipe that carries condensed water away from the boiler. If this pipe freezes, it can cause the boiler to shut down, and the heating system to stop working. To prevent this problem, insulate the pipe, and keep it clear of debris.

7. Ignition Problems 

Ignition problems can be caused by a faulty ignition system or a lack of gas supply. If the boiler is not igniting, it will not heat the water, and the heating system will not work. Ignition problems can be dangerous, so it is essential to have them repaired by a qualified professional.

Why Do These Problems Occur? 

Boilers are complex machines, and several factors can cause problems. Some of the most common causes include:

– Lack of Maintenance: Regular maintenance is essential to keep your boiler working correctly. Without maintenance, problems can occur.

– Age: As boilers age, they can become less efficient and more prone to problems.

– Poor Installation: If your boiler was not installed correctly, it can cause problems down the line.

– Hard Water: If you live in an area with hard water, limescale can build up in the boiler’s heat exchanger, causing kettling and other problems.

Preventing Boiler Problems 

Preventing boiler problems is essential to keep your heating system working efficiently and safely. Some tips for preventing problems include:

– Schedule Regular Maintenance: Have your boiler serviced annually by a qualified professional.

– Keep the Area Around the Boiler Clear: Make sure there is nothing obstructing the boiler or its vents.

– Insulate Pipes: Insulate the pipes around the boiler to prevent freezing and reduce heat loss.

– Use a Water Softener: If you live in an area with hard water, consider installing a water softener to reduce limescale build-up.

Conclusion

Understanding the most common boiler problems and why they occur can help you prevent them from happening or address them quickly if they do. Regular maintenance and taking steps to prevent problems can help keep your heating system working efficiently and safely. If you do experience a problem, it is essential to have it repaired by a qualified professional.

If you need boiler repair in Pickering, you can hire us at Climate Experts. We install, maintain, and service furnaces, air conditioners, boilers, and more. Get in touch with us to book our services at Climate Experts.

More To Explore

Diagnostic
Service Call

ONLY

$99.95 + HST