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When one component of an HVAC system stops working, many homeowners order a replacement part and fix it themselves. Unfortunately, though, a DIY repair job could void the system’s warranty. Most HVAC manufacturers require approval for all repairs, which must then be performed by a licensed HVAC contractor. Additionally, if you don't register your HVAC warranty within a specific time (often 6 to 12 months), your system may not be covered.
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