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Lennox AC Leaking Water? Here's What You Should Know

Lennox AC Leaking Water? Here’s What You Should Know

Lennox AC Leaking Water? Here’s What You Should Know

No one expects their air conditioner to start leaking water, but it can and does happen often. If your Lennox air conditioner is leaking water and you don’t know what to do, you’re not alone. This guide will help you understand what might be causing the leak, what you can do yourself to try and fix it, and when it’s time to call in a professional.

Common Causes of a Lennox AC Leaking Water

The most common cause of a leak in a Lennox AC is due to a blocked, plugged, or cracked condensate drain line. The condensate drain line is typically located along the evaporator coils and, due to the moist environment, it’s susceptible to blockages and excessive wear. Other possible causes of a Lennox AC leaking water include:

  • Clogged condensate pump
  • Dirty or corroded condensate pans
  • Leaking water supply line
  • Debris blocking the evaporator coils

Diagnosing the Issue

Before you attempt any repairs, you should carefully inspect your system to detect the source of the leakage. Start by checking the condensate drain line and ensuring it’s clean and not cracked or blocked. If the drain line is clogged or cracked, you’ll need to gently remove the debris or replace the line. Additionally, check your condensate pan to ensure it’s not clogged or corroded and that the walls aren’t cracked. If the water supply line is leaking, it will need to be replaced as soon as possible.

DIY Repair

If nothing appears to be wrong with your condensate drain line, you can attempt to clear out debris blocking the evaporator coils with a vacuum. Gently slide the vacuum hose over the coils and make sure you don’t damage the fins. If this doesn’t solve the issue, turn off the air conditioning system and inspect all accessible parts to check if they need replacing.

When to Call a Professional

Sometimes, trying to fix the issue yourself isn’t enough, or it can even make the problem worse. If inspecting the condensate drain line, condensate pan, evaporator coils, and water supply line doesn’t help you find the source of the leak, you’ll need to call in a professional HVAC technician. It can be costly, but professional repair services will ensure the job is done correctly and it won’t lead to further damage.

Take Action Now

Whether you decide to attempt repairs by yourself or call in a professional technician, it’s important to not ignore a leaking Lennox AC. Neglected water damage can slowly add up and cause extensive damage to your home’s wiring, insulation, and flooring. If you’ve already identified the source of the leak, take action and attend to repair work immediately.

If you’re having trouble finding the source of the leak or if you’re not entirely certain what repairs need to be done, don’t worry. Calling in a professional appliance repair service such as Local Reliable Appliance Repair at (866) 311-8590 is the best way to ensure the issue is taken care of and that your system is running efficiently and safely.

Lennox AC Leaking Water? Here's What You Should Know
Lennox AC Leaking Water? Here's What You Should Know
Lennox AC Leaking Water? Here's What You Should Know

Lennox AC Leaking Water: Best Practices and Solutions

When a Lennox air conditioner (AC) starts to leak water, understanding the reasons and causes of the problem is essential. Taking preventive action to avoid water leakage issues should be a top priority. By following manufacturer recommendations and local appliance companies’ or HVAC technician’s guidance, homeowners can take steps to keep their units in working order and reduce the risk of a leaking air conditioner.

Manufacturer Recommendations

Lennox recommends an annual AC inspection and cleaning to help keep the unit running smoothly and reduce the chances of issues like leaking. During an inspection, the technician will clear away debris from around the unit and verify that the AC is free from any major blockages, proper airflow is being maintained, and operating temperature is within range. Additionally, the technician should check the vent and ductwork for proper sealing and gaps.

If the system is leaking, it’s important to call a professional for an evaluation. Small leaks may sometimes be fixable with an inspection and minor adjustments, while larger ones may require more extensive repairs or even replacement of a component.

Local Appliance Companies’ Recommendations

Local appliance companies typically suggest cleaning the AC unit and clearing away debris that may have built up around it during the course of operation. A buildup of debris can cause a blockage and impede the unit’s ability to cool the air, causing more strain on the system which can result in a leak.

In addition, Lennox recommends cleaning or changing the air filter regularly – at least every few months depending on the type of filter used. This will help keep the airflow clear, reducing the risk of a leaking AC.

HVAC Technician’s Recommendations

A qualified HVAC technician should inspect the AC unit and check it for any signs of damage or wear. They should also inspect the area around the unit, including the ducts and vents, for gaps and verify that they are properly sealed. Vacuum lines should be regularly checked for leaks as well.

The HVAC technician should also verify the integrity of the condensate drain line, clear away any clogs or debris, and check if the drain is properly circulating. The condensate drain line can be a major culprit when it comes to AC leaking water – if there is a backup or the line is clogged, it can lead to water leaking from the AC unit itself.


When dealing with a Lennox AC leaking water, preventive action is always the best way to reduce the chances of future issues. By following the recommendations of both manufacturers and local appliance companies or HVAC technicians, homeowners can take steps to keep their unit in working order and reduce the risk of a water leak. Regular inspections and cleanings should be a top priority, and any unexpected signs of water leaking from the unit should be immediately followed up with a service call.

Average Cost of Repairing a Lennox AC Leaking Water

The average cost of repairing a Lennox AC that is leaking water will vary depending on the type of issue and the complexity of the repair work.

Most repairs can be done for around $100-200, plus the cost of any parts. The minimum repair cost for a simple issue is likely to be around $70-90. If the problem is more complex, the repair cost could be upwards of $250, plus the cost of parts.

If a complete installation of a new Lennox AC is required, the cost is likely to be between $650-1,000 in California, plus the cost of materials. This price could vary depending on the size, age and condition of the unit and the installation requirements.

When investing in a Lennox AC, it pays to choose quality components. Depending on the age and condition of the unit, it may be worthwhile investing in new parts such as the condenser, evaporator coils and fan blower.

For accurate pricing and advice, it is best to call a qualified air conditioning and heating specialist, such as Local Reliable Air Conditioning & Heating at 866-311-8590.

Solving the Problem of Lennox AC Leaking Water

Having your AC leaking water can be a major pain and a real inconvenience. Not to mention it can lead to damage to yourself, your home, and your wallet. Lucky for you, Reliable Air Conditioning & Heating is a California-based, family-owned company that offers same-day services for appliance and HVAC repair and installations, including Lennox air conditioning units that have started to leak water.

At Reliable, they understand how to quickly and effectively solve the problem of Lennox AC leaking water and all the associated issues that come with it. The team of highly-qualified technicians have a minimum of five years of experience, ensuring that you’re getting the best possible service. Additionally, all repairs come with a 90-day warranty, meaning that in the unlikely chance that the same problem arises again, you’ll be covered.

As a fully licensed and insured service provider, Reliable Air Conditioning & Heating offers a range of quality services at fair and affordable pricing. You don’t have to worry about ever feeling taken advantage of, either – Reliable’s experts always keep your interests first and foremost.

When it comes to Lennox AC leaking water, don’t take chances. Trust the experienced and knowledgeable technicians at Reliable Air Conditioning & Heating to solve the problem and protect your home, your wallet, and your peace of mind.

How Reliable Air Conditioning & Heating Can Help with Lennox AC Leaking Water

If your Lennox AC is leaking water, don’t stress. Just call the highly-qualified technicians at Reliable Air Conditioning & Heating. Serving California for over 30 years, this family-owned business has all the experience and expertise necessary to quickly and efficiently solve your air conditioning problem.

Reliable’s team of experienced technicians are certified in all the latest HVAC systems and have a minimum of five years of experience. This ensures that no matter the issue, you’ll be able to get top-quality service that won’t just solve the problem but help to prevent the issue from occurring again in the near future.

Not only that but Reliable offers competitive pricing, meaning that you won’t have to worry about spending too much to solve your Lennox AC leaking water dilemma. All repairs come with a 90-day warranty, making it easy to have the comfort of knowing that if the same problem crops up again, you’ll be covered.

Whether it’s a simple repair or a full replacement, Reliable Air Conditioning & Heating has the expertise and experience to quickly provide you with reliable, long-term solutions to all your AC leaking water needs. Contact them today and find out how to get the best result for your AC problems.

FAQs About Lennox AC Leaking Water

What Causes a Lennox AC to Leak Water?

The most common causes of water leaks from a Lennox AC are clogged condensate drains, frozen evaporator coils, and corrosion of a water-bearing component. Clogs and frozen coils usually create too much water that can’t escape, while corrosion can create holes that allow water to get out.

How Can I Fix a Lennox AC That Is Leaking Water?

The best and safest way to fix a leaking Lennox AC is by calling a professional AC repair service. They can investigate, diagnose, and repair the source of the water leak. In certain cases, it’s doable to thaw frozen evaporator coils with a hair dryer, but professional repairs are always recommended.

Can I Use My Lennox AC If It’s Leaking Water?

No. It is important to immediately turn off your Lennox AC if it is leaking water. Operating your Lennox AC can cause further damage such as freeze-ups, electric problems, and additional water leakage.

For any secure and successful repair of your Lennox AC leaking water, it is important to call a reliable appliance repair service. Contact Local Reliable Appliance Repair at (866) 311-8590 for assistance.

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