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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:
Nov 7, 2017
I first met Greg and Grant (The Twin Brothers from Twin Tech - yup -it's not just a cool company name) back in 2014 when our furnace broke down and they installed our Carrier Furnace and AC that we purchased through Sears. I liked them instantly when I met them due to their friendly and professional service, and the fact that they didn't mind taking a little extra time to explain things in terms I could understand. Since that time they have reached out to me at least once a year to ensure that everything was running smoothly with my system and to keep me appraised of their evolving services. Due to this high level of proactive customer service I didn't hesitate to call and obtain their help for a Gas Stove removal and installation. When I scheduled the call Greg and Grant let me know that they would arrive the morning of the appliance delivery to disconnect the old gas stove, and then return in the afternoon to connect the new stove. Sure enough, they did just that as promised. Where they exceeded my expectations is with the extra level of support helping to assemble the burners and grills on the stove and in the oven. This may seem like a small thing to some but to my wife who was at home during this entire process it meant a stress free transition to the meal prep for the day. When I called home to ask about the install she commented that, "they left the place cleaner than it was when they arrived and they setup all the grills on top of the stove and in the oven... they didn't have to do all that -Wow!". You know what they say, Happy Wife, Happy Life. So in summary, I am recommending Twintech Heating & Cooling for all of your Furnace, Air Conditioning, and Gas Line needs. I've even called on these guys to help swap out a leaky water valve. They are just so easy to reach and communicate with by phone, and they don't mind a text message to confirm the details. You can rest easy when you have the Twins on your side as an extension of your household maintenance plan.
Oct 19, 2017
First thing, they actually showed up for a quote. Other big name companies in the area didn't even return my call , job was done as expected and new equipment is quiet and installed very clean and professional. Would highly recommend these guys.
Oct 17, 2017
They removed our old furnace and replaced it with a new furnace and AC system.
Sep 28, 2017
Work was performed in a clean and timely manner. The furnace and metal work was performed by the Twintech team (did not require separate contractor to do the metal work). Energy audit was arranged and promised rebates were received. The overall price was very competitive. We have recommended Twintech to several of our friends and family. Awesome job.
Sep 20, 2017
Grant and Greg installed a heating and AC system in our new Linwood post and beam home. Post and beam can be challenging structures for running ductwork and their high ceilings and open concept frequently frustrate efforts at balancing air flow and controlling temperatures. But these guys did it and did it right the first time. Even the building inspector was impressed with what he saw. More importantly, the boys brought a high degree of trust and integrity to the job. Something in short supply these days.
Sep 13, 2017
Very polite and professional. They removed my o
ld furnace and A/C and installed my new ones. They were efficient and thoroughly cleaned up when they were done! I would highly recommend them!
Sep 13, 2017
Pro from start to finish. They were able to fix my gas fireplace at very little cost as well.
Aug 8, 2017
Excellent installation very knowledgeable gentlemen! Would highly recommend them to all my friends for any hvac work !
Jul 23, 2017
I have used Twintech many times over the years. They always arrive quickly and get the issue fixed. The most recent incident was when my air conditioner broke last week I called Greg at 11:30am and he was at my home by 2:30pm he had the unit fixed by 3:30pm. Twintech are very reliable and honest and they are experts in the field. I have already recommended them to many of my friends. I would not use anyone but them for my heating and air conditioning issues.
Jul 17, 2017
I would highly recommend these guys, professional, fast and competitive pricing. I moved into this place with no working AC unit with a 8 month baby, he was able to come with in a week to fix even in the busy summer days. He really values his customers , I am already recommending to my neighbors.
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