Migliaccio & Rathod LLP is investigating widespread reports of premature indoor evaporator coil failures, specifically at the U-bends, and ongoing water and refrigerant leaks in Daikin mini-split systems, often within just a few years of installation. Despite some coils being replaced under warranty, homeowners continue to face recurring leaks, labor costs, and lengthy service cycles, raising serious concerns about potential design flaws, materials, or manufacturing issues.
Summary of the Problem & Customer Reports
Homeowners and HVAC technicians are reporting multiple issues with Daikin mini-split systems, particularly with leaks originating from the U-bends of the indoor coils. These coils, often failing within 3-5 years, result in significant water and refrigerant leakage. While individual coils have been replaced under warranty, the issues persist, leading to:
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Repeated leaks after coil replacement
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High labor costs not covered by the warranty
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Lengthy service cycles, often requiring multiple visits
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Unnecessary system recharging, which adds additional costs
Forum threads and social media discussions reflect the frustration of homeowners who are left with high out-of-pocket expenses despite Daikin’s warranty coverage on parts. Several owners report replacing the entire coil, or even the full condensing and indoor unit, due to repeated failures.
Why Blaming Installation Is Not the Answer
Some HVAC contractors have attempted to attribute these recurring leaks to installation errors or corrosive environments. However, the consistency of these failures across different installations, paired with the frequency of coil replacements within just a few years, points to a potential systemic issue with the materials or manufacturing quality of the coils, rather than isolated installation mistakes.
Further compounding this issue is Daikin’s warranty structure, which often covers parts but provides limited or no labor coverage. Homeowners are left with high labor expenses, sometimes needing to pay out-of-pocket for coil replacements, refrigerant recharging, and even multiple service calls.
Reported Incidents & Impact on Homeowners
Key issues reported by affected Daikin mini-split owners include:
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Recurrent U-bend and coil leaks in systems only 3–5 years old.
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Multiple service calls for recurring coil leaks.
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Partial warranty coverage, leaving homeowners to bear labor costs and refrigerant recharging expenses.
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Some homeowners have had to replace entire condensing units or indoor systems due to repeated failures, leading to high replacement costs.
These ongoing issues create unnecessary financial and operational burdens for consumers, with some systems becoming non-functional long before their expected lifespan.
Legal Theories & Potential Relief for Consumers
If you’ve experienced repeated coil failures or water/refrigerant leaks in your Daikin mini-split system, you may be entitled to legal relief under the following theories:
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Latent Defect / Design or Materials Defect: The coils may be prone to premature failure under normal operating conditions, indicating a defect in the design or materials used.
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Breach of Express and Implied Warranties: Despite parts being replaced under warranty, the repeated coil failures, along with the labor and refrigerant costs, may constitute a breach of Daikin’s warranty agreements.
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Deceptive Trade Practices: Daikin’s marketing may imply long service life and durability, but without adequate disclosure of material risks that could lead to frequent coil failures and additional expenses for consumers.
Possible remedies include:
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Full system replacement for systems with recurring coil failures.
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Reimbursement for labor and refrigerant recharging.
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Compensation for consequential damages due to property damage, loss of efficiency, and financial hardship.
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Extended warranty and labor coverage to prevent future out-of-pocket expenses.
Were You Affected by Daikin Coil Failures or Leaks?
If your Daikin mini-split system has experienced:
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Multiple coil replacements due to U-bend leaks
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Water or refrigerant leaks within a few years
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Paid labor costs or refrigerant recharging after warranty parts replacement
You may qualify for further investigation and potential compensation.
Fill out the form below to learn more about your legal rights and how you may be entitled to financial restitution for ongoing issues with your Daikin mini-split system.