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How Technicians Diagnose A/C Coil Problems

Before deciding to replace a coil, HVAC professionals use a series of checks to pinpoint the issue. Here’s how the process typically works: 1. Visual Inspection Technicians start by looking for telltale signs: Corrosion or pitting on coil surfaces Refrigerant oil...

Custom Coils vs Stock Coils: Why Matching Specs Matters

Custom Coils vs Stock Coils: Why Matching Specs Matters

When it’s time to replace a coil, the question comes up fast:“Can’t we just use a stock coil that’s close?” In some cases, sure. But in most commercial or institutional buildings — “close enough” just isn’t good enough. Here’s why drop-in custom coils are the...

Old HVAC Coils: To Repair or Replace?

Old HVAC Coils: To Repair or Replace?

HVAC coils over 10–15 years old are more likely to fail due to corrosion, vibration damage, or refrigerant leaks — even with regular maintenance. Repairing may be an option for minor issues like dirty fins, loose connections, or early-stage leaks, but frequent repairs...