Broken Window Seal Exclusive //free\\
Feeling a chill even when the window is locked tight. Why Seals Break (The Science of Thermal Pumping)
A broken seal doesn't always look like a crack in the glass. In fact, the glass is often perfectly fine. Look for these exclusive indicators: broken window seal exclusive
Mineral deposits or streaks left behind by evaporated moisture inside the unit. Feeling a chill even when the window is locked tight