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Posted On: November 24, 2024
A leaking furnace can be a concerning issue, potentially leading to water damage and system inefficiency. Here's why your furnace might leak and what you can do about it:
1. Condensation Leak
- Cause: High-efficiency furnaces (with AFUE ratings of 90% or higher) produce condensation during operation. This water typically drains through a condensate line. If the line is clogged, cracked, or improperly installed, water can leak.
- Solution: Clear clogs in the condensate line, repair or replace damaged lines, and ensure proper installation by a professional.
2. Malfunctioning Condensate Pump
- Cause: In systems requiring a condensate pump to move water to a drain, a malfunctioning or broken pump can result in leaks.
- Solution: Test the pump for functionality and replace it if necessary.
3. Humidifier Issues
- Cause: If your furnace has a built-in humidifier, leaks can occur from clogged lines, damaged seals, or excessive water pressure.
- Solution: Inspect the humidifier for issues and repair or replace defective components.
4. Clogged Drain or Trap
- Cause: Over time, debris and dirt can clog the furnace's drain or trap, causing water to back up and leak.
- Solution: Clean the drain and trap to ensure proper flow.
5. Heat Exchanger Problems
- Cause: Though rare, a cracked heat exchanger can sometimes lead to water leakage. It can also pose serious safety risks due to the potential release of carbon monoxide.
- Solution: Contact a professional HVAC technician to inspect and replace the heat exchanger if necessary.
6. Incorrect Vent Pipe Installation
- Cause: Condensation can form inside improperly installed vent pipes, dripping back into or around the furnace.
- Solution: Have a professional inspect and correct the vent pipe installation.
7. Air Conditioning System Leaks
- Cause: If your furnace and air conditioning system share the same housing, a leaking AC unit can appear as though the furnace is the problem.
- Solution: Inspect the AC unit, including its condensate pan and lines, for leaks.
Preventative Measures:
- Schedule annual maintenance for your HVAC system.
- Regularly inspect and clean drain lines and traps.
- Address any strange noises or performance issues promptly to avoid further complications.
If your furnace is leaking, it's essential to address the issue quickly to prevent water damage or operational inefficiencies. When in doubt, call an HVAC professional to diagnose and fix the problem.
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See What Our Customers Are Saying:
Apr 10, 2019
Had new furnace installed and ran into some difficulties but the contractor responded in a timely and efficient manner - after further service calls were made, a reasonable resolution was found.
Apr 8, 2019
The work was done quickly efficiently neatly and professionally. Pleased with the service, information, product, and the company.
Apr 1, 2019
Great sales member named Dave came in told us some amazing items and how they would be priced installed an all. We couldnt believe it! The next day the ac was installed, that day one employee named Greg told us that our furnace was working way to hard and was causing us to use way too much gas. So two days later they came in an installed a new furnace!
Apr 1, 2019
Installation was done quickly and professionally. The new furnace is quiet and provides even heat.
Mar 3, 2019
They removed and discarded old furnace. Installed new furnace. Installed air intake pipe, that had never been installed by builder, no charge. Replaced loose hose on floor with hard pipe and rerouted it to drain, no charge. Almost 33% cheaper then quote from Enercare, which was the company we dealt with and had insurance with for 8 years. No yearly fee for cleaning/insurance, saves 300 a year. Courteous, professional, fast, and friendly. My wife and I have been recommending them to everyone we know and meet, and will continue to do so. Thanks for everything, Twintech!!!
Mar 4, 2019
This company was great to deal with. Our furnace went down and they installed a new furnace the next day with a lot of professionalism!
Feb 22, 2019
Finally! An honest company with highly knowledgeable and informative staff. Had a furnace service and found multiply errors in our system from an amateur installer. Very fair price to correct problems and will definitely use again.
Feb 16, 2019
Had to replace the heating & a/c unit in a condo apartment dwelling. this company recommended by the property manager and president of the condo building. found their workmanship and attention to details very good and very thorough. were able to resolve small problems and situations and happy to feel the heat in my unit. it's pricey, but happy was done by a very professional service. thank you.
Feb 13, 2019
Fantastic team. Completed the job as per the specifications and in under 3 hours. Highly recommended Twintech.
Jan 30, 2019
During the summer, I previously hired TwinTech to replace my air conditioner when it failed. They did an excellent job so when I decided to proactively replace the furnace I contacted them. The furnace I had was 22 years old and showed signs of internal leakage. It still worked but rather than wait to have it fail in cold weather, I decided to purchase a higher efficiency model before it failed and take advantage of energy efficiency rebates. TwinTech offered very useful advice on the make and model of furnace to choose including high efficiency and variable speed motor. The price was reasonable, TwinTech arrived at the allotted time, installed the new furnace (including some re-routing of exhaust lines since the existing ones were too close to other vents), removed the old furnace, tested the installation and cleaned everything up. Overall, it was a good experience, they did a great job and the new furnace is working well.
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