The heat is a test, not a cause
When a system quits on a 103 degree afternoon, the heat gets the blame. Most of the time the heat only found a part that was already tired: a weak capacitor, a low charge, a contactor that was pitting for months.
What to watch for in June
Warm air from the vents, a unit that runs without ever catching up, higher bills for the same setting, or a hum and no cold. Any one of those in early summer is worth a look before July.
Get ahead of it
A spring tune-up finds most of these before they strand you. If yours skipped one this year, a quick check now beats a midnight call in August.
