Air Conditioner Repair Checklist
1. AC Won’t Turn On
There can be a few reasons why your air conditioning won’t start: an overloaded circuit breaker, inaccurate thermostat settings, a switched off switch or a full condensate drain pan.
Blown Circuit Breaker
Your air conditioning won’t work when you have an overloaded breaker.
To check if one has gotten overloaded, go to your house’s main electrical panel. You can locate this silver device on the wall in the basement, garage or closet.
- Make sure your hands and feet are dry before you check the panel or breakers.
- Find the breaker marked “AC” and ensure it’s in the “on” spot. If it’s tripped, the lever will be in the "off" position.
- Firmly shift the lever back to the “on” position. If it instantaneously trips again, don’t reset it and call us at 832-777-1521. A breaker that keeps flipping might mean your home has electrical trouble.
Wrong Thermostat Settings
If your thermostat isn’t giving a sign to your AC to work, it won’t activate.
The main part is making sure it’s set to “cool” and not “heat.” Otherwise your air conditioner might not turn on. You might also have warm air blowing from vents because the heat is on instead.
If you’re using a regular thermostat:
- Swap out the batteries if the readout is empty. If the readout is presenting scrambled numbers, replace the thermostat.
- Ensure the correct program is on the display. If you can’t change it, reverse it by decreasing the temperature and pushing the “hold” button. This will make your AC start if scheduling is incorrect.
- Try setting the thermostat 5 degrees below the house’s temperature. Your AC won’t cool if the thermostat matches the room’s temperature.
Once your thermostat is set correctly, you should begin getting refreshing air quickly.
If you rely on a smart thermostat, like one produced by Nest, Ecobee, Lux, Honeywell or Bosch, check the manufacturer’s website for help. If it still won’t work, reach us at 832-777-1521 for help.
Your system probably has a power-cutting switch near its outdoor unit. This lever is generally in a metal box hung on your house. If your equipment has recently been repaired, the lever may have inadvertently been turned off.
Clogged Condensate Drain Pan
Condensate drain pans hold the additional condensation your system removes from the air. This pan can be situated either below or in your furnace or air handler.
When there’s an obstruction or clogged drain, water can become concentrated and prompt a safety control to turn off your system.
If your pan has a PVC pipe or drain, you can get rid of the extra liquid with a special pan-cleaning tablet. You can buy these capsules at a home improvement or hardware store.
If your pan includes a pump, look for the float switch. If the lever is “up” and there’s water in the pan, you might have to get a new pump. Reach us at 832-777-1521 for assistance.
2. AC Blows Warm Air
If your AC is going but not providing cold air, its airflow may be blocked. Or it could not have sufficient refrigerant.
Your unit’s airflow can be decreased by a plugged air filter or filthy condenser.
How to Replace Your Air Filter
A dirty filter can cause a lot of troubles, such as:
- Reduced cooling
- Icy refrigerant lines or evaporator coil
- Intermittent cooling
- Higher energy expenses
- Causing your system to break down more quickly
We propose replacing flat filters once a month, and pleated filters every three months.
If you can’t remember when you last replaced your filter, shut off your equipment completely and remove the filter. You can locate the filter in your furnace or air pump’s blower compartment. It may also be situated in an attached filter holder or wall-mounted return air grille.
Angle the filter up to the sunshine. If you see a lot of dust, you should get a new one.
4 Tips on Cleaning Your Cooling Unit
Greenery, grass and shrubbery can get in the way of your condensing unit. This may reduce its airflow, impact its energy efficiency and affect your comfort. Here’s how you can get your system operating well again.
- Switch off electricity fully at the breaker or outdoor lever.
- Get rid of greenery waste around the air conditioner. Once you’ve removed larger refuse within a two-foot radius, you can use a soft brush or vacuum to gingerly remove dust from the condenser fins. Kinked fins can also affect efficiency.
- Use a hose nozzle to carefully take off dirt on the fins from inside the equipment. Be careful to avoid getting liquid on the fan motor.
- Turn the power back on.
Low Refrigerant Levels
When AC units don’t have adequate refrigerant, they’ll have to work much harder to remove heat and humidity from your house.
Here are several signs that your system is leaking refrigerant:
- It takes too long to cool your rooms and you’re continually turning down the thermostat.
- Air coming through the registers isn’t as cold as it should be.
- You’re hearing fizzing or bubbling noises when the air conditioning is on.
- Your evaporator coil is frosty due to having trouble absorbing heat.
Suspect your system is leaking refrigerant? You need a authorized heating and cooling service specialist to take care of the leak and restore the correct level of refrigerant in your equipment. Call us at 832-777-1521 for assistance.
3. AC Not Blowing Enough Air
When it feels like you’re not having ample amounts of cold air, there’s probably a clog or separation somewhere in your air conditioning system.
- The first step is checking your air filter. Get a new one if it’s dirty.
- Make sure the vents are open around your residence.
- If you’re still not experiencing adequate cold air, you should have your duct system checked by a expert like Air Houston Mechanical LLC. Your ducts might need to be fixed or hooked up again in hard-to-reach locations like your attic, basement or crawl space.