Last evening my outdoor unit didn't start when the air handler in the attic did, it just hummed. Usually a bad sign, right?
I looked up the phone number for our HVAC guy, made a note to call them in the morning. But out of curiosity I turned the system back on, and this time it started okay.
I'm reasonably sure it won't last. But intermittent problems can be hard to diagnose, and I have to pay for the service call whether they find the problem or not.
So what would you do, call now or wait until the crash? This is central Virginia, it won't get life threatingly cold the rest of the year. Can the average tech figure this one out?