Why the Upstairs Never Cools, and What Actually Fixes It
The upstairs stays hot because three separate problems stack on top of each other: warm air naturally rises and settles under the roof, the attic above…
What SEER2 Measures, and What It Does Not
SEER2 measures how much cooling a system delivers per unit of electricity, under a standardized lab test that accounts for the resistance of real ductwork.
The House Is Cold and Still Feels Damp
An air conditioner that keeps the house cold but still feels damp is almost always cycling off before it has run long enough to dry the air.
Restarting Air Conditioning After a Power Cut
Air conditioning that won’t come back on after a power outage is usually fine.
Covering the Outdoor Unit for Winter: What Helps and What Rots It
An outdoor condenser is designed to sit outside, exposed to rain, snow, and freezing temperatures, for its entire working life.
Musty and Burning Smells from the Vents
A musty smell from your vents almost always points to moisture and mold somewhere in the system, most often on the evaporator coil or inside the ductwork.
The Evaporator Coil: The Part That Actually Makes the Cold
Evaporator coil cleaning means clearing dust, grime, and biological buildup off the finned coil inside the indoor unit so air can pass through it freely…
Why Your Air Conditioner Freezes Over
Your air conditioner freezes over because the evaporator coil inside your indoor unit has dropped below 32°F, and instead of pulling moisture out of the…
The Pass to Make Before Summer
The pass is a single walk-through of your central air system before the first real hot stretch: filter, outdoor coil, and airflow at the vents.
Water Around the Indoor Unit: The Condensate Drain
Water pooling near the indoor unit, or a system that just shut itself off, almost always traces back to one part: the condensate drain.