These are the circumstances that put HVAC units under a heavy load. You may notice that your unit is having a hard time keeping up and maybe it is running non-stop from about 2 pm – 7 pm, or until the sun goes down. Unfortunately, this might be normal. No matter how new your unit is, no matter how wonderful the name brand is, no matter how high the seer rating, these temperatures are extreme conditions.
Things to Consider:
- The envelope of the home may not be adequately insulated- cold air could be escaping from space around the windows, into your attic or under doors.
- Window treatments, curtains specifically, can be beneficial to keep the heat from peering into your home.
- Your HVAC system might be restricted. Use your water hose to rinse off the outside condenser unit, if you’re comfortable doing so.
- Have your refrigerant levels checked- it is a science. Refrigerant levels that are too high or too low will result in air from the vents that is not cold/cool.
- Check your filters. Dirty filters also cause a restriction. Restriction keeps your until from performing it’s job.
- Poor duct engineering will be more obvious in extreme heat conditions.Have your duct work inspected by a licensed HVAC tech. Ensure that ducts are connected and sealed as well as routed properly.
- Use your ceiling fans as much as possible.
- If your a/c stops working in these conditions and there is a waiting list for a repair man, consider getting out of the house by going to the mall or the store. If you are on a waiting list that is days long, it might be beneficial to stay with family or in a hotel.
- Consider the temporary use of window units or portable air conditioning units, also known as portable uprights, until you can get your unit repaired.
- If you’re waiting for a repair man, stay hydrated. I know this sounds elementary, but sometimes we forget.
- If you stop sweating seek medical help immediately.