Air Conditioner Repair Checklist
1. AC Won’t Turn On
There can be a couple of explanations why your AC equipment won’t work: a triggered circuit breaker, wrong thermostat settings, a switched off switch or an overfull condensate drain pan.
Overloaded Circuit Breaker
Your system won’t work when you have a blown breaker.
To determine if one has gotten overloaded, go to your residence’s main electrical panel. You can find this silver box on the wall in the basement, garage or closet.
- Ensure your hands and feet are dry before you check the panel or breakers.
- Look for the breaker identified “AC” and confirm it’s in the “on” position. If it’s triggered, the breaker will be in the "off" position.
- Quickly transfer the breaker back to the “on” location. If it instantly trips again, don’t touch it and reach us at 203-357-5913. A switch that keeps tripping may signal your home has an electrical issue.
Wrong Thermostat Settings
If your thermostat isn’t giving a sign to your AC to run, it won’t turn on.
The main point is ensuring it’s switched to “cool” and not “heat.” Otherwise your air conditioning might not turn on. You could also receive warm air blowing from vents because the furnace is going instead.
If you rely on a traditional thermostat:
- Replace the batteries if the screen is empty. If the screen is presenting garbled numbers, get a new thermostat.
- Check the right mode is on the display. If you can’t change it, override it by lowering the temperature and pressing the “hold” button. This will make your AC start if scheduling is incorrect.
- Attempt to set the thermostat 5 degrees below 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 properly, you should start getting cool air promptly.
If you have 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 203-357-5913 for help.
Your air conditioner probably has a shut-down device around its outdoor unit. This switch is generally in a metal box mounted on your home. If your unit has recently been tuned up, the lever may have accidentally been turned off.
Blocked Condensate Drain Pan
Condensate drain pans keep the additional liquid your system takes out of the air. This pan can be situated either under or inside your furnace or air handler.
When there’s an obstruction or backed up drain, water can become concentrated and prompt a safety setting to stop your system.
If your pan involves a PVC pipe or drain, you can get rid of the surplus liquid with a formulated pan-cleaning tablet. You can get these tablets at a home improvement or hardware shop.
If your pan has a pump, look for the float switch. If the mechanism is “up” and there’s water in the pan, you could need to install a new pump. Reach us at 203-357-5913 for support.
2. AC Blows Warm Air
If your equipment is working but not delivering cold air, its airflow could be congested. Or it could not have adequate refrigerant.
Your system’s airflow can be decreased by a plugged air filter or dirty condenser.
How to Change Your Air Filter
A dirty filter can cause numerous troubles, like:
- Reduced comfort
- Frosted refrigerant lines or evaporator coil
- Intermittent cooling
- Increased utility bills
- Making your system stop working sooner
We propose installing new 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 fully and take out the filter. You can spot the filter in your furnace or air pump’s blower compartment. It could also be situated in a connected filter box or wall-mounted return air grille.
Tilt the filter up to the sunshine. If you can’t see any light, you need to replace it.
How to Clean Your Air Conditioning Equipment
Greenery, vegetation and sticks can get in the way of your condensing system. This can limit its airflow, make it less energy efficient and affect your comfort. Here’s how you can get your unit running properly again.
- Shut off electricity completely at the breaker or outdoor lever.
- Remove yard debris around the AC. Once you’ve removed bigger debris within a two-foot range, you can use a soft brush or vacuum to slowly clean the condenser fins. Bent fins can also hurt effectiveness.
- Use a hose nozzle to slowly clean the fins from inside the equipment. Be careful to avoid getting water on the fan motor.
- Turn on the power.
Not Enough Refrigerant
When cooling equipment doesn’t have adequate refrigerant, they’ll have difficulty removing heat and humidity from your rooms.
Here are a few symptoms that your system is leaking refrigerant:
- It takes an extended amount of time to refresh your rooms and you’re continually turning down the thermostat.
- Air conditioning moving through the ducts isn’t as cold as it should be.
- You’re experiencing fizzing or burbling noises when cooling works.
- Your evaporator coil is icy on account of having an issue taking on humidity.
Suspect your unit is leaking refrigerant? You need a certified heating and cooling service specialist to repair the leak and restore the proper measurement of refrigerant in your equipment. Contact us at 203-357-5913 for support.
3. AC Not Blowing Enough Air
When it feels like you’re not getting ample amounts of chilled air, there’s possibly an obstruction or separation somewhere in your AC unit.
- The beginning place is looking at your air filter. Buy a new one if it’s soiled.
- Make sure the ductwork is open around your rooms.
- If you’re still not experiencing enough chilled air, you should have your duct system inspected by a expert like Central Air LLC. Your ductwork may need to be fixed or hooked up again in tricky spots like your attic, basement or crawl space.