High Electric Bill From Your AC? Causes
Cooling is the largest part of most Grand Strand electric bills. When the bill jumps, the system is often working harder than it should.
Common causes
Dirty filters and coils
Restricted airflow forces longer run times.
Duct leaks
Cooled air escaping into the attic never reaches the room.
Aging or inefficient equipment
Older systems lose efficiency over time.
Failing components
Weak capacitors, motors or low refrigerant increase energy use.
Poor thermostat settings or backup heat running
Auxiliary heat is more expensive than normal heat pump heating.
Insulation and air leaks
The building envelope decides how hard the system must work.
What you can safely check
- Replace the filter.
- Review thermostat settings.
- Check that vents are open.
- Look for rooms that are consistently too hot.
When to call a professional. If your bill has risen without a change in usage, schedule an inspection. An energy audit can also help you find where the loss is. Never open electrical panels or remove access covers on equipment. If you smell burning or see smoke, turn off power and call 911 if there is any danger.
Why did my AC bill suddenly go up?
Weather matters, but sudden increases can also point to equipment problems or leaks.
Will a new system lower my bill?
A properly sized, efficient system can reduce energy use, but ducts and insulation matter too.
What is a reasonable thermostat setting?
Many guidelines suggest around 78 degrees when you are home in summer, with adjustments for comfort and humidity.
Comfortable again, without the runaround
$30 off your first service call. Mention this website when scheduling. Cannot be combined with other offers. Excludes diagnostic fee and maintenance visits.