Air Conditioner Repair Checklist
1. AC Won’t Turn On
There can be several causes why your central AC system won’t cool: a triggered circuit breaker, incorrect thermostat settings, a switched off switch or an overfull condensate drain pan.
Tripped Circuit Breaker
Your cooling won’t run when you have a tripped breaker.
To see if one has tripped, locate your house’s main electrical panel. You can find this gray box on the wall in the basement, garage or closet.
- Ensure your hands and feet are dry before you work on the panel or breakers.
- Find the breaker marked “AC” and make sure it’s in the “on” spot. If it’s tripped, the switch will be in the middle or “off” spot.
- Firmly move the breaker back to the “on” spot. If it instantly trips again, don’t reset it and contact us at 325-200-4667. A switch that keeps turning off might signal your home has electrical trouble.
Inaccurate Thermostat Settings
If your thermostat isn’t signaling your system to work, it won’t activate.
The most important step is making sure it’s set to “cool” and not “heat.” Otherwise your air conditioner will probably not switch on. Or you may have hot air blowing from vents being the heater is on instead.
If you have a traditional thermostat:
- Swap out the batteries if the monitor is empty. If the screen is presenting garbled letters, buy a new thermostat.
- Ensure the correct program is on the display. If you can’t change it, override it by decreasing the temperature and pushing the “hold” button. This will make your AC start if programming is incorrect.
- Attempt to set the thermostat 5 degrees colder than the house’s temperature. Your AC won’t start if the thermostat is set the same as the space’s temperature.
Once your thermostat is adjusted accurately, you should begin getting cold air promptly.
If you’re using a smart thermostat, such as one manufactured by Nest, Ecobee, Lux, Honeywell or Bosch, go to the manufacturer’s website for help. If it still won’t work, reach us at 325-200-4667 for support.
Your air conditioner typically has a shut-off lever by its outside unit. This switch is typically in a metal box mounted on your home. If your AC has recently been repaired, the lever may have accidentally been put in the “off” position.
Blocked Condensate Drain Pan
Condensate drain pans catch the extra liquid your air conditioner pulls from the air. This pan can be positioned either below or within your furnace or air handler.
When there’s an obstruction or backed up drain, water can accumulate and initiate a safety control to switch off your system.
If your pan involves a PVC pipe or drain, you can drain the extra condensation with a special pan-cleaning tab. You can purchase these tablets at a home improvement or hardware shop.
If your pan involves a pump, look for the float switch. If the mechanism is “up” and there’s water in the pan, you might have to get a new pump. Call us at 325-200-4667 for help.
2. AC Blows Warm Air
If your air conditioner is on but not providing cold air, its airflow might be congested. Or it could not have sufficient refrigerant.
Your system’s airflow can be reduced by a blocked air filter or dirty condenser.
How to Replace Your Air Filter
A dirty filter can lead to many troubles, like:
- Reduced cooling
- Frosted refrigerant lines or evaporator coil
- Intermittent cooling
- Larger electricity costs
- Making your system break down more quickly
We recommend installing new flat filters once a month, and accordion filters every three months.
If you can’t recall when you last changed yours, switch off your system completely and remove the filter. You can locate the filter in your furnace or air pump’s blower compartment. It could also be found in an adjoining filter holder or wall-mounted return air grille.
Angle the filter up to the light. If you can’t see any light, you certainly should buy a new filter.
5 Steps to Cleaning Your Cooling System
Brush, grass and shrubbery can block your condensing system. This can reduce its airflow, make it less energy efficient and affect your comfort. Here’s a way you can get your equipment running smoothly again.
- Switch off the electrical current completely at the breaker or external switch.
- Clear vegetation debris around the unit. Once you’ve cleared all the refuse within a two-foot area, you can use a soft brush or vacuum to carefully remove dust from the equipment’s fins. Warped fins can also affect effectiveness, so you can attempt to straighten them with a small knife.
- Take off the upper part of your system and remove any leaves or yard waste that has collected. Then clean the condenser fan with a damp cloth.
- Use a hose nozzle to carefully clean the fins from inside the unit. Make sure to avoid getting moisture on the fan motor.
- Install the top again and turn the power back on.
When air conditioning units don’t have adequate refrigerant, they’ll have difficulty removing heat and humidity from your home.
Here are a few signs that your equipment is leaking refrigerant:
- It takes an extended amount of time to refresh your residence and you’re constantly turning down the thermostat.
- Air coming through the ducts isn’t as chilly as it should be.
- You’re noticing fizzing or bubbling noises when the AC is on.
- Your evaporator coil is frosty because it’s having trouble taking on humidity.
Worried your unit is leaking refrigerant? You need a licensed heating and cooling service specialist to take care of the leak and restore the proper measurement of refrigerant in your equipment. Contact us at 325-200-4667 for support.
3. AC Not Blowing Enough Air
When it appears like you’re not having ample amounts of cold air, there’s likely a blockage or disconnection inside your cooling unit.
- The initial stage is examining your air filter. Buy a new one if it’s soiled.
- Then ensure the registers are clear around your home.
- If you’re still not getting enough cold air, you should have your ducts checked by a specialist like Abilene Air-Tech Inc. Your duct system could need to be serviced or reconnected in difficult areas like your attic, basement or crawl space.