Air Conditioner display

Since you're talking about air conditioning I'm going to guess you from the southeast United States you should never be setting a temperature in the summer in your generation too it should be on lo meaning only ccold temperature. And whatever fan speed you desire. If you're setting a number like 75 on the display that means it's allowing heat into your cabin during the summer bad choices . I understand you're 84 years old and you probably get colder than you do hotter turn fan down not temp up . It's harder on the system .

 

Where would you ever get ideas like that?

If the display is set to 75 and the cabin temperature sensor reads less than 75, you'll get heat. Lots of heat if the cabin is a lot less than 75, tapering down to a little heat once it's close to 75 (yay variable air-mix damper).

If display is set to 75 and the cabin temperature sensor reads more than 75, you'll get cooling. Lots of cooling if the cabin is a lot above 75, tapering down to a little cooling once it's close to 75 (yay variable-speed A/C compressor).

That's pretty much the way you'd want it to work, no? It's about the way I'd want it to work.

If you set the display to HI you just get heat no matter what, never tapering down. If you set it to LO you just get cooling no matter what, never tapering down. I can't really think of many times, outside of repair testing, when that'd be what I'd want. HI doesn't make the system capable of any more heating, and LO doesn't make it capable of any more cooling, than it can deliver when it's operating normally with a temperature set.

 

If it is hot I press the A/C button, the recirc button, and set the temperature to 70F. That does the trick. Using the fresh mode on a really hot day makes the A/C work much harder, as it has to keep pulling heat out of the outside air. Not a big deal on an 80F day, very big deal on a 110F day.