Furnace Leaking Water: Causes and Solutions

AirPoint technician fixing furnace leak in Toronto home 2023

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Furnaces are essential appliances in our homes, especially during the cold winter months. They help to keep our homes warm and cozy. However, a common issue that homeowners face with their furnaces is water leakage. Water leakage from a furnace can be a frustrating and potentially hazardous problem. It can damage your furnace, your flooring, walls, and even your furniture.

In this article, we will discuss the causes and solutions for water leakage from a furnace.

2. Condensation Issues

Condensation occurs when water vapour in the air comes into contact with a cold surface and turns into liquid. In a furnace, condensation can occur when warm air from the furnace meets a cold surface, such as the metal surfaces inside the furnace. This can cause water to accumulate and leak from the furnace.

To prevent condensation issues, you should ensure that your furnace is properly sized for your home. A furnace that is too large for your home can cause excess condensation. Additionally, you should ensure that your home is well-insulated to prevent warm air from escaping and coming into contact with cold surfaces. You can also install a condensate pump or a drain line to help remove excess water from the furnace.

3. Leaky Humidifier

A humidifier is a device that adds moisture to the air in your home. It is often attached to your furnace and works by adding water vapor to the warm air that is circulated throughout your home. However, if the humidifier is not properly maintained, it can develop leaks that can cause water to leak from the furnace. Leaks can be caused by clogs in the humidifier, a faulty water supply line, or a broken valve.

To fix a leaky humidifier, you should first turn off the water supply and power to the furnace. Next, you should check for any clogs or debris in the humidifier and clean it thoroughly. If the water supply line is faulty, you may need to replace it. You can also replace any broken valves or seals to prevent leaks from occurring in the future.

4. Drainage Problems

Drainage is the process of removing excess water from the furnace. This is typically done through a drainage system, which collects and removes any water that has accumulated in the furnace. However, if the drainage system is not working properly, water can accumulate and leak from the furnace.

Drainage problems can be caused by clogs in the drainage system, a faulty condensate pump, or improper installation. To fix drainage problems, you should first check the drainage system for any clogs or debris and clean it thoroughly. If the condensate pump is faulty, you may need to replace it. Additionally, improper installation of the drainage system can also cause problems, so you may need to have a professional inspect and correct any installation issues.

5. Improper Installation

Improper installation of the furnace can also cause water leakage. This can occur when the furnace is not installed properly, or if there are any leaks in the ductwork or drainage system.

Signs of improper installation include water pooling around the furnace, excessive condensation on the windows or walls, and uneven heating throughout the home. To fix improper installation issues, you should have a professional inspect and correct any installation issues.

6. Cracked Heat Exchanger

A heat exchanger is a critical component of the furnace that is responsible for transferring heat from the combustion chamber to the air that is circulated throughout the home. If the heat exchanger is cracked, it can cause water to leak from the furnace.

Signs of a cracked heat exchanger include a strange smell or noise coming from the furnace, a yellow or flickering flame, and poor heating performance. If you suspect that your heat exchanger is cracked, you should turn off the furnace immediately and have a professional inspect and repair it.

Trust AirPoint to fix your Furnace Leak

Water leakage from a furnace can be caused by various factors and can lead to serious damage to your furnace and home. To prevent this issue, it is essential to have your furnace inspected regularly by a professional HVAC technician and to perform regular maintenance.

At AirPoint, we are a Carrier factory authorized dealer and NATE certified in Toronto, with the highest title of dealership with Carrier. Our company has been recognized as HomeStars Best of the Best 2023 and 5 stars on Google and HomeStars. We take pride in our team of fully trained technicians who are certified by TSSA, HRAI and CSA. We understand the importance of maintaining a functional and efficient furnace, and we are here to help you with any furnace-related issues you may encounter. Contact us today to schedule a furnace inspection or for any other HVAC needs.

To learn more about how to fix a leaking furnace, check out this video by The Air Of Authority

Step by step guide: How to fix a leaking furnace

Furnace Leak FAQs: Answers from the Experts

Get more answers to your questions about furnace leaks from the experts at AirPoint.

You may notice water pooling around the furnace, excessive condensation on the windows or walls, or uneven heating throughout the home.

 

Water leakage from a furnace can cause damage to your furnace, flooring, walls, and furniture. It can also pose a safety hazard if the water comes into contact with electrical components.

 

It is not recommended to fix a leaky furnace yourself, as it can be dangerous and may cause further damage to your furnace. It is best to have a professional inspect and repair your furnace.

The cost of fixing a leaky furnace can vary depending on the cause and severity of the issue. It is best to have a professional inspect and provide an estimate for the cost of repairs.

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