Take a look at your return register. I was having this issue at the beginning of the season and my return had some pet hair lodged in it. That coupled with a new filter (and for the return if it uses one) should help keep the temps down.
Many good suggestions, but I didn't see anyone bring up how well the house is holding the temperature, aka insulation or leaks. The best AC can't keep it cool if that cool is going outside somehow. You say the vent air feels cold so it seems to be doing its best. Single pane windows, especially facing the direct afternoon sun will be hard to keep from undoing the cooling. Attic space that has little insulation will also defeat the efforts.
This. Lack of insulation, leaky doors and windows, etc. will give your system a lot of load. My sister has no insulation and her electric bill in the summer is double mine, and I live in a bigger house.
Yep, always my first thought. If you’re in the US you can get tax benefits by making your home more energy efficient. It’s doable yourself but hiring someone to do it will eventually pay for itself.
And for the attic don’t just pile on insulation, need a good air sealing first if that’s no good.
I'm a layman but from what I've read recently, 92 to 78 is 14 degrees; the typical temperature differential is a maximum of about 20. There may be a few more degrees you can eke out, but you are getting a majority of the potential benefits
While correct, you usually see only a 20 degree difference, that’s between the intake and exhaust. Since it’s recirculating the air that should be able to bring the cooled air down further.
The other posters have given good info. I just wanted to add to try setting the fan to on instead of auto so it runs all of the time. This will help keep the air moving in the house and might help keep it cooler. Also make sure you check the filter and change it if you haven't yet. See if your energy company offers an energy audit. that will tell you if you have leaky windows, doors, or insulation problems. I have shitty insulation but with the ac fan running all of the time I can keep the house @ 70 - 72 on a 95 degree day.
I'd also consider getting a second opinion from another HVAC company, you could have undersized ductwork or another problem that the first company isn't acknowledging.
Two issues with running the blower all the time. One, wear and tear on the blower over time. More importantly though, the coils in the unit need occasional downtime to let moisture drain for best efficiency. Your points on moving air while not cooling are valid though, and newer thermostats do have a circulation mode that will cut on the blower for a percentage of the time the AC itself isn't on to do move air around. Good for second story homes with one AC, as the thermostat is usually on the first floor while the heat rises to the top floor.
when this happened to me the heat exchanger inside was all iced up, turned out it was a valve in the circulation. Couldn't fix it myself due to compressed coolant.
As others have stated, replace your air filter if you haven’t recently. Make sure it’s the appropriate size and rating. It should probably be pleated, and the MERV rating shouldn’t be too high unless you know the fan supports it.
Use a temp gun or a kitchen instant read thermometer and compare the exhaust temp vs the return temp. It should be around 15 degrees difference or more. If it’s not then an installer should adjust the pressure on the system.
If you have multiple floors you may have a vent damper for summer vs winter. In the winter the dampers may be set to help force air through the lower floor vents and prevent the hot air from rising too fast to the upper floors. If the installer or previous owner was nice the damper will be labeled for summer vs winter.
If it’s not blowing air at all, then you may have a leak or a blockage.
If theres ice on the indoor coil or on the lines outside then either the filter is clogged or your pressure is off.
If your hvac person is telling you it’s working fine and it obviously is not, call a different installer.
It’s right-hand. If you stand with your back to the hinges (with the door open), whichever arm mimics the swing of the door is the “Handedness” of the door.
I made a similar repair but with a smaller break using superglue (cyanoacrylate), held perfectly. However, I reinforced the broken part with a piece of a plastic card glued to the side. Consider doing that if this doesn’t hold.
I’d be concerned that the rough surface you seem to have now will be hard to clean and may get very nasty. Other than that, if it works it works.
I’m not worried about fully cured CA glue on a non-contact surface of a shelf that holds bottles/milk packs etc., or honestly even fruit whose peel you don’t eat.
Given that CA-based glues are used for wound closure and apparently even as dental adhesives, I’ll trust www.ontariopoisoncentre.ca/…/super-glue/ over the many sites that look like ChatGPT wrote them (mostly trying to sell some food safe alternative). It’s not food safe, so I wouldn’t glue e.g. a soup bowl with it, but eating an orange that sat on a cured seam in a fridge isn’t going to poison you.
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