Modern a/c units often have sensors that shut the system off if the condensate leaks

I love it when machines implement new safety features to reduce the possibility for injury or harm.

There are some saws that have to be held constantly or a sensor will shut off the blade.

My recent space heater features a shut-off switch if it detects that the machine is tipping over. And then there’s my washing machine that stops and tries to reorient my laundry whenever it gets off balance and starts making a ton of noise. If the washer didn’t have this feature, I could lose use of it for days at a time if an unbalanced load causes the drum to get damaged. These things are usually fixable, but it costs both money and time that I’m not in a position to spend. Similarly, I learned that many modern air conditioners have shut-off switches whenever the condensate line clogs and starts to overflow. Naturally, algae and microbial growth can create slow-growing clogs in an a/c system’s condensate line. In an old a/c system, that water would flow back into the air conditioner and you’d have water damage underneath your air handler. With the safety shut-off switch, the entire air conditioner becomes inoperable until an HVAC technician clears the condensate line and resets the switch manually. This only takes my HVAC tech roughly an hour to do, and then the air conditioner is back to working normally once again. After hearing from my step dad about the water damage he faced one year due to a condensate clog, I’m really happy about these new HVAC safety features.
heating and cooling equipment