Air Conditioner Repair Checklist
1. AC Won’t Turn On
There can be several reasons why your air conditioning won’t work: a tripped circuit breaker, wrong thermostat settings, a turned off switch or a full condensate drain pan.
Overloaded Circuit Breaker
Your AC won’t turn on when you have an overloaded breaker.
To see if one has gotten overloaded, go to your home’s main electrical panel. You can locate this gray device on the wall in the basement, garage or closet.
- Confirm your hands and feet aren’t wet before you check the panel or breakers.
- Look for the breaker labeled “AC” and make sure it’s in the “on” location. If it’s tripped, the lever will be in the "off" position.
- Quickly transfer the lever back to the “on” spot. If it instantly trips again, don’t touch it and contact us at 715-504-0533. A breaker that keeps tripping could mean your home has electrical trouble.
Incorrect Thermostat Settings
If your thermostat isn’t signaling your AC to work, it won’t activate.
The first part is ensuring it’s set to “cool” and not “heat.” Otherwise your air conditioning might not turn on. You might also receive warm air blowing from vents since the furnace is running instead.
If you rely on a traditional thermostat:
- Replace the batteries if the screen is blank. If the screen is displaying garbled letters, get a new thermostat.
- Check the proper option is displaying. If you can’t change it, cancel it by decreasing the temperature and pushing the “hold” button. This will make your AC start if the configuration is incorrect.
- Try setting the thermostat 5 degrees lower than the house’s temperature. Your AC won’t work if the thermostat is set the same as the house’s temperature.
Once your thermostat is set accurately, you should receive chilled air fast.
If you rely on a smart thermostat, like one made by Nest, Ecobee, Lux, Honeywell or Bosch, look at the manufacturer’s website for troubleshooting. If you’re still having problems, reach us at 715-504-0533 for support.
Your cooling equipment probably has a shut-down device by its outdoor unit. This switch is typically in a metal box hung on your residence. If your equipment has recently been tuned up, the device may have unintentionally been turned off.
Overflowing Condensate Drain Pan
Condensate drain pans hold the surplus water your AC removes from the air. This pan can be found either under or within your furnace or air handler.
When there’s a blockage or backed up drain, water can become concentrated and initiate a safety setting to turn off your unit.
If your pan has a PVC pipe or drain, you can clear the surplus condensation with a custom pan-cleaning tablet. You can buy these tablets at a home improvement or hardware shop.
If your pan has a pump, locate the float switch. If the lever is “up” and there’s moisture in the pan, you might have to get a new pump. Contact us at 715-504-0533 for help.
2. AC Blows Warm Air
If your system is working but not delivering cold air, its airflow could be congested. Or it may not have enough refrigerant.
Your system’s airflow can be restricted by a clogged air filter or filthy condenser.
How to Replace Your Air Filter
A dusty filter can cause countless troubles, like:
- Limited cooling
- Frosted refrigerant lines or evaporator coil
- Uneven cooling
- Larger cooling costs
- Causing your system to wear out more quickly
We suggest replacing flat filters every four weeks, and pleated filters every three months.
If you can’t remember when you last replaced your filter, switch off your equipment totally and take out the filter. You can find the filter in your furnace or air pump’s blower compartment. It could also be found in an adjoining filter case or wall-mounted return air grille.
Angle the filter up to the light. If you can’t see through it, you certainly should buy a new filter.
4 Steps to Cleaning Your Air Conditioning Equipment
Weeds, plants and bushes can obstruct your condensing unit. This can restrict its airflow, make it less energy efficient and affect your comfort. Here’s a way you can get your system working smoothly again.
- Turn off power totally at the breaker or outdoor lever.
- Get rid of greenery debris around the air conditioner. Once you’ve cleared larger clutter within a two-foot area, you can use a fine-bristled brush or vacuum to slowly remove dust from the condenser fins. Bent fins can also impact performance.
- Use a hose nozzle to slowly clean the fins from inside the system. Don’t get moisture on the fan motor.
- Restore the power.
When air conditioning systems don’t have sufficient refrigerant, they’ll have to work much harder to remove heat and humidity from your rooms.
Here are a couple of signs that your system is losing refrigerant:
- It takes a long time to lower the temperature in your home and you’re regularly lowering the thermostat.
- Air moving through the ducts isn’t as cold as it should be.
- You’re hearing whistling or bubbling noises when cooling runs.
- Your evaporator coil is frosty as a result of having an issue handling warmth.
Suspect your equipment is losing refrigerant? You need a licensed heating and cooling service professional to take care of the leak and refill the right measurement of refrigerant in your unit. Reach us at 715-504-0533 for assistance.
3. AC Not Blowing Enough Air
When it appears like you’re not receiving enough cool air, there’s potentially an obstruction or detachment somewhere in your cooling equipment.
- The initial step is checking your air filter. Replace it if it’s filthy.
- Make sure the registers are open throughout your home.
- If you’re still not receiving ample chilly air, you should have your ductwork inspected by a specialist like Point Heating & Cooling. Your duct system might need to be serviced or hooked up again in hard-to-reach spots like your attic, basement or crawl space.