The FilerAI Blog
Straight-talk articles for HVAC shop owners on permits, warranties, EPA compliance, and keeping your paperwork from costing you money.
ComplianceApril 16, 2026 · 5 min read
EPA 608 Record Retention: What Auditors Actually Check
The 3-year rule, what auditors pull first, and how to stay audit-ready without the headache. Real fines, real paperwork, plain English.
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WarrantiesApril 16, 2026 · 6 min read
Why HVAC Warranty Claims Get Denied (And How to Stop Losing $1,400 Each Time)
The top 3 reasons manufacturers deny warranty claims and the paperwork that keeps them paying. Trane, Carrier, Lennox, Rheem specifics.
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PermitsApril 16, 2026 · 6 min read
The HVAC Permit Trap Small Shops Don't See Coming
Why an open permit on a 3-year-old install can sink a shop's license. Inspection deadlines by jurisdiction, liability that doesn't transfer, and how to track it all.
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