With home comfort, there are some terms that tend to be a common source of confusion because of some overlaps with definitions. Two of these are central air conditioning and forced air. Part of the reason for this is how central AC systems work.
Naturally, there's reason to be concerned if you open your fridge and things are sour, spoiled, not smelling so good, or usually warm. These are all signs your refrigerator is not cooling. Now, this doesn't necessarily mean it's time to buy a new fridge.
Spring is the time when many people shift from running the furnace to turning on the air conditioner on days when it's hot and humid. As you make the annual change from heating to cooling, you might notice some issues with your home's comfort system.