Air Conditioner Repair Checklist
1. AC Won’t Turn On
There can be a few reasons why your air conditioning won’t run: an overloaded circuit breaker, inaccurate thermostat settings, a turned off switch or an overfull condensate drain pan.
Tripped Circuit Breaker
Your air conditioning won’t work when you have a tripped breaker.
To check if one has blown, go to your house’s main electrical panel. You can find this gray box on the wall in the basement, garage or closet.
- Make sure your hands and feet aren’t wet before you touch the panel or breakers.
- Locate the breaker marked “AC” and confirm it’s in the “on” position. If it’s triggered, the lever will be in the "off" position.
- Firmly transfer the switch back to the “on” spot. If it instantly trips again, don’t reset it and get in touch with us at 772-353-4633. A switch that keeps flipping might signal your house has an electrical problem.
Incorrect Thermostat Settings
If your thermostat isn’t telling your air conditioner to run, it won’t activate.
The most important part is making sure it’s set to “cool” and not “heat.” Otherwise your AC may not switch on. You may also receive warm air moving from vents because the heater is on instead.
If you have a regular thermostat:
- Put in new batteries if the readout is clear. If the monitor is showing garbled numbers, get a new thermostat.
- Check the correct mode is on the display. If you can’t change it, override it by dropping the temperature and pushing the “hold” button. This will cause your AC to run if programming is not right.
- Attempt to set the thermostat 5 degrees lower than the house’s temperature. Your AC won’t start if the thermostat is identical to the room’s temperature.
Once your thermostat is adjusted correctly, you should receive refreshing air promptly.
If you rely on a smart thermostat, including ones made by Nest, Ecobee, Lux, Honeywell or Bosch, go to the manufacturer’s website for troubleshooting. If you’re still having problems, call us at 772-353-4633 for support.
Your cooling equipment typically has a power-cutting lever by its condenser. This device is generally in a metal box mounted on your residence. If your AC has recently been tuned up, the switch may have inadvertently been turned off.
Blocked Condensate Drain Pan
Condensate drain pans hold the surplus water your equipment removes from the air. This pan can be positioned either beneath or within your furnace or air handler.
When there’s a clog or clogged drain, water can build up and trigger a safety setting to switch off your system.
If your pan has a PVC pipe or drain, you can clear the surplus water with a special pan-cleaning tab. You can buy these tabs at a home improvement or hardware retailer.
If your pan has a pump, look for the float switch. If the switch is “up” and there’s moisture in the pan, you might have to replace the pump. Contact us at 772-353-4633 for support.
2. AC Blows Warm Air
If your AC is on but not cooling, its airflow may be congested. Or it might not have sufficient refrigerant.
Your system’s airflow can be limited by a blocked air filter or filthy condenser.
How to Change Your Air Filter
A dusty filter can lead to many issues, including:
- Limited airflow
- Frosted refrigerant lines or evaporator coil
- Inconsistent cooling
- Bigger energy bills
- Making your system wear out faster
We suggest changing flat filters monthly, and pleated filters every three months.
If you aren’t sure when you last replaced your filter, shut off your equipment completely and pull out the filter. You can spot the filter in your furnace or air pump’s blower compartment. It may also be found in an adjoining filter case or wall-mounted return air grille.
Angle the filter up to the sunshine. If you can’t see any light, you certainly should buy a new filter.
4 Steps to Cleaning Your Cooling Unit
Weeds, grass and bushes can block your condensing equipment. This could limit its airflow, make it less energy efficient and impact your comfort. Here’s how you can get your equipment operating well again.
- Shut off power completely at the breaker or outside device.
- Clear plant debris around the AC. Once you’ve removed larger clutter within a two-foot space, you can use a paint brush or vacuum to gingerly remove dust from the unit’s fins. Warped fins can also affect capability.
- Use a hose nozzle to carefully take off dirt on the fins from inside the system. Make sure to avoid getting water on the fan motor.
- Turn the power back on.
Low Refrigerant Levels
When air conditioning equipment doesn’t have ample refrigerant, they’ll have difficulty removing heat and humidity from the air.
Here are a few indications that your equipment is losing refrigerant:
- It takes too long to cool your house and you’re regularly turning down the thermostat.
- Air conditioning moving through the vents isn’t as chilly as it should be.
- You’re experiencing hissing or bubbling racket when the AC runs.
- Your evaporator coil is frosted because it’s having trouble taking on heat.
Worried your unit is losing refrigerant? You need a qualified heating and cooling service specialist to repair the leak and restore the proper level of refrigerant in your equipment. Reach us at 772-353-4633 for assistance.
3. AC Not Blowing Enough Air
When it appears like you’re not having enough chilled air, there’s usually an obstruction or separation within your cooling unit.
- The first place is checking your air filter. Get a new one if it’s filthy.
- Make sure the ductwork is open throughout your home.
- If you’re still not experiencing sufficient cold air, you should have your duct system examined by a professional like Breathe Healthier Air. Your ductwork might need to be serviced or reconnected in limited space locations like your attic, basement or crawl space.