We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
No HVAC we’ve ever had would do maintenance on AC when not warm enough to test thermostat and cooling. Maybe better to do in September when you’re shutting down the pool and it’s still warm. Our guy does the generator Maintenance and check 2x a year -spring + AC and fall for + heat. We pay him 1x a year and he just schedules.
Our experience is similar to yours in that we have semi-annual scheduled service calls, once each for furnace & a/c.
With either service call, the service guy asks us to turn the thermostat enough to kick on the furnace or a/c, according to what's being checked that day. When he's finished, we just reset the thermostat to where it was.
We've never gotten anything like, "Sorry, ma'am, it's too cold to test the a/c today."
If they're giving you the runaround, ask them why not just reset the thermostat to call for heat or cooling and test the system that way?
We’ve had the same guy for last 10 years two properties and it’s worked for us. Never had a service call during “high” hot or cold season so sticking with what works. Usually leave the bulkhead or walkout door open The day he says tech is coming and often don’t see him except by the new filters.
When we started shopping for this house, the real estate agent asked, " Do you want a fireplace? " Both of us gave her a very hard look for about 15 seconds. She looked at her notes and said, " No fireplace. "