AC Tune-Up — instruments, not a flashlight

The ideal tune-up happens before the first run of hundred-degree days, and the page says so: its process recommends March through May, with fall as the second choice for heat pumps that will also heat. Many visitors will arrive later, though, with a system already struggling. The FAQ addresses them directly: a summer visit still beats none.

That is why the quick symptom check sits right under the request form and ends with a button labeled “Book a tune-up anyway.” The page serves both the planner and the worried homeowner without making either feel they arrived at the wrong time.

Lower down, a second interactive section asks the visitor to choose the noise their system is making: a hiss, a screech, a click and hum with no fan, or constant short cycling. Each one gives a likely cause and a specific instruction. A continuous hiss suggests a refrigerant leak and calls for a diagnostic soon. A screech means turning the system off before a seized motor damages other parts. A click-hum is almost always the capacitor, and the advice is to stop trying to restart it.

Teaching a homeowner to describe a sound makes the eventual phone call more useful, and the shut-off instructions may prevent a cheap repair from turning into an expensive one.

The FAQ takes a clear position on a common practice. An air conditioner does not use up refrigerant, the page explains, so a low charge means a leak, and topping off without finding it amounts to renting refrigerant by the pound. A short section called “The efficiency tax” makes a related point: dirty coils and a tired motor draw more current to move the same heat, so neglect costs money every hour the system runs.

Another answer argues that maintenance matters most on older systems, both to extend their working life and to give an honest read on condition so replacement can be planned. The maintenance plan, with priority scheduling and member pricing, is offered as the natural next step after a measured visit.