Air Conditioner Repair Checklist
1. AC Won’t Turn On
There can be a few explanations why your air conditioning system won’t cool: a tripped circuit breaker, incorrect thermostat settings, a shut off switch or a full condensate drain pan.
Tripped Circuit Breaker
Your system won’t run when you have a tripped breaker.
To check if one has tripped, find your residence’s main electrical panel. You can spot this silver fixture on the wall in the basement, garage or closet.
- Confirm your hands and feet are dry before you work on the panel or breakers.
- Find the breaker identified “AC” and make sure it’s in the “on” location. If it’s triggered, the breaker will be in the in between or “off” spot.
- Quickly move the breaker back to the “on” location. If it instantly trips again, leave it alone and contact us at 319-208-3295. A fuse that keeps flipping might indicate your home has electrical trouble.
Wrong Thermostat Settings
If your thermostat isn’t signaling your AC to work, it won’t activate.
The main part is making sure it’s on “cool” and not “heat.” Otherwise your air conditioner may not start running. Or you could get hot air moving from vents since the heater is going instead.
If you have a traditional thermostat:
- Swap out the batteries if the readout is empty. If the screen is displaying scrambled characters, get a new thermostat.
- Check the correct mode is on the display. If you can’t change it, override it by decreasing the temperature and pressing the “hold” button. This will force your AC to work if the configuration is wrong.
- Attempt to set the thermostat 5 degrees lower than the space’s temperature. Your AC won’t cool if the thermostat matches the room’s temperature.
Once your thermostat is calibrated correctly, you should start getting chilled air fast.
If you’re using a smart thermostat, such as one produced by Nest, Ecobee, Lux, Honeywell or Bosch, go to the manufacturer’s website for troubleshooting. If you still can’t get it to work, contact us at 319-208-3295 for assistance.
Your air conditioner usually has a power-cutting device around its outside unit. This switch is typically in a metal box mounted on your house. If your AC has recently been worked on, the lever may have unintentionally been positioned in the “off” setting.
Overflowing Condensate Drain Pan
Condensate drain pans hold the extra water your equipment removes from the air. This pan can be situated either under or in your furnace or air handler.
When there’s an obstruction or clogged drain, water can accumulate and trigger a safety setting to turn off your system.
If your pan involves a PVC pipe or drain, you can clear the additional water with a custom pan-cleaning tab. You can purchase these tablets at a home improvement or hardware shop.
If your pan involves a pump, find the float switch. If the lever is “up” and there’s moisture in the pan, you might have to get a new pump. Call us at 319-208-3295 for assistance.
2. AC Blows Warm Air
If your system is going but not cooling, its airflow might be congested. Or it may not have sufficient refrigerant.
Your equipment’s airflow can be restricted by a blocked air filter or dusty condenser.
How to Replace Your Air Filter
A filthy filter can create numerous issues, including:
- Limited airflow
- Frosted refrigerant lines or evaporator coil
- Inconsistent cooling
- Larger energy costs
- Making your system stop working more quickly
We suggest installing new flat filters monthly, and accordion filters every three months.
If you can’t remember when you last replaced yours, shut off your unit fully and remove the filter. You can find the filter in your furnace or air pump’s blower compartment. It may also be found in an adjoining filter holder or wall-mounted return air grille.
Tilt the filter up to your light fixture. If you see a lot of dust, you should get a new one.
5 Tips on Cleaning Your Air Conditioning Unit
Brush, grass and bushes can block your condensing unit. This may limit its airflow, lower its energy efficiency and affect your comfort. Here’s how you can get your unit running smoothly again.
- Shut off electricity fully at the breaker or outdoor device.
- Clear yard rubbish around the equipment. Once you’ve gotten rid of all the refuse within a two-foot radius, you can use a fine-bristled brush or vacuum to gingerly remove dirt from the unit’s fins. Crooked fins can also hurt performance, so you can attempt to adjust them with a blunt knife.
- Remove the upper grate of your air conditioner and pull out any leaves or weeds that has collected. Then wipe off the condenser fan with a wet cloth.
- Use a hose nozzle to slowly clean the fins from inside the unit. Be careful to avoid getting moisture on the fan motor.
- Put the top back on and restore the power.
Low Refrigerant Levels
When cooling equipment doesn’t have enough refrigerant, they’ll struggle to remove heat and humidity from your residence.
Here are a couple of indications that your unit is losing refrigerant:
- It takes a long time to refresh your house and you’re constantly lowering the thermostat.
- Air coming through the vents isn’t as chilled as it should be.
- You’re noticing fizzing or burbling noises when the AC runs.
- Your evaporator coil is frosted as a result of having trouble handling warmth.
Suspect your equipment is losing refrigerant? You need a certified heating and cooling service specialist to repair the leak and replenish the correct level of refrigerant in your unit. Reach us at 319-208-3295 for help.
3. AC Not Blowing Enough Air
When it seems like you’re not receiving adequate amounts of chilled air, there’s usually a clog or detachment inside your AC unit.
- The beginning step is looking at your air filter. Buy a new one if it’s dirty.
- Then make sure the ductwork is free around your house.
- If you’re still not experiencing enough cold air, you should have your duct system checked by a pro like Ilten's Incorporated. Your ductwork may need to be fixed or rejoined in limited space locations like your attic, basement or crawl space.