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TroubleshootingSeptember 4, 20262 min read

Testing an AC capacitor with a multimeter

Outdoor unit humming but the fan won't spin? A bad run capacitor is one of the most common culprits, and one of the cheapest parts in the whole system. Here's how to check it without getting hurt.

Moderate45 minutes

TroubleshootingAugust 7, 20262 min read

AC's running but not cooling? Try these 8 checks first

Before you pick up the phone, walk through this list. A bunch of common causes won't cost you a dime to fix, and the rest give you something useful to tell the tech.

Easy30 minutes