1. AC Won’t Turn On
There can be a couple of causes why your central AC system won’t start: an overloaded circuit breaker, incorrect thermostat settings, a switched off switch or an overflowing condensate drain pan.
Blown Circuit Breaker
Your air conditioner won’t turn on when you have a tripped breaker.
To check if one has gotten overloaded, go to your home’s main electrical panel. You can spot this metallic box on the wall in the basement, garage or closet.
- Confirm your hands and feet are dry before you work on the panel or breakers.
- Locate the breaker labeled “AC” and make sure it’s in the “on” location. If it’s tripped, the breaker will be in the middle of the panel or “off” location.
- Firmly shift the breaker back to the “on” spot. If it instantly flips again, don’t reset it and contact us at 610-257-7035. A switch that keeps flipping may indicate your home has an electrical problem.
Wrong Thermostat Settings
If your thermostat isn’t signaling your air conditioner to start, it won’t switch on.
The first point is making sure it’s switched to “cool” and not “heat.” Otherwise your AC might not switch on. Or you may get hot air moving from vents being the furnace is running instead.
If you’re using a traditional thermostat:
- Replace the batteries if the readout is clear. If the monitor is displaying scrambled letters, replace the thermostat.
- Check the correct setting is displaying. If you can’t update it, reverse it by dropping the temperature and pressing the “hold” button. This will force your AC to work if programming is not right.
- Try setting the thermostat 5 degrees below the room’s temperature. Your AC won’t cool if the thermostat is set the same as the space’s temperature.
Once your thermostat is calibrated accurately, you should begin getting cold air promptly.
If you rely on a smart thermostat, like one made by Nest, Ecobee, Lux, Honeywell or Bosch, look at the manufacturer’s website for troubleshooting. If it still won’t work, call us at 610-257-7035 for help.
Your cooling equipment typically has a shut-down lever around its condenser. This lever is typically in a metal box attached to your home. If your equipment has recently been worked on, the switch may have unintentionally been placed in the “off” position.
Blocked Condensate Drain Pan
Condensate drain pans hold the extra liquid your air conditioner takes out of the air. This pan is located either below or within your furnace or air handler.
When there’s an obstruction or backed up drain, water can become concentrated and trigger a safety setting to switch off your equipment.
If your pan has a PVC pipe or drain, you can clear the surplus liquid with a special pan-cleaning capsule. You can purchase these tabs at a home improvement or hardware store.
If your pan includes a pump, locate the float switch. If the mechanism is “up” and there’s moisture in the pan, you may need to replace the pump. Call us at 610-257-7035 for help.
2. AC Blows Warm Air
If your system is going but not providing cold air, its airflow could be obstructed. Or it could not have enough refrigerant.
Your system’s airflow can be reduced by a clogged air filter or dirty condenser.
How to Change Your Air Filter
A filthy filter can cause numerous problems, such as:
- Reduced comfort
- Icy refrigerant lines or evaporator coil
- Intermittent cooling
- Larger cooling costs
- Making your system break down sooner
We propose replacing flat filters monthly, and creased filters every three months.
If you can’t recall when you last replaced yours, shut off your AC completely and remove the filter. You can spot the filter in your furnace or air pump’s blower compartment. It might also be found in an attached filter box or wall-mounted return air grille.
Tilt the filter up to your light fixture. If you can’t see any light, you need to get a new one.
5 Tips on Cleaning Your Air Conditioning System
Greenery, plants and leaves can block your condensing unit. This could restrict its airflow, make it less energy efficient and affect your comfort. Here’s a method you can follow to get your unit working smoothly again.
- Shut off electricity completely at the breaker or outdoor device.
- Remove yard rubbish around the AC. Once you’ve cleared bigger clutter within a two-foot radius, you can use a soft brush or vacuum to gingerly remove dust from the condenser fins. Bent fins can also hurt efficiency, so you can attempt to adjust them with a small knife.
- Lift off the top of your air conditioner and pull out any leaves or grass clippings that has built up. Then wipe off the condenser fan with a moist rag.
- Use a hose nozzle to slowly take off dirt on the fins from inside the system. Be careful to avoid getting liquid on the fan motor.
- Install the top again and turn the power back on.
When cooling equipment doesn’t have enough refrigerant, they’ll have difficulty removing heat and humidity from your residence.
Here are a few symptoms that your unit is leaking refrigerant:
- It takes a long time to cool your space and you’re constantly turning down the thermostat.
- Air conditioning moving through the registers isn’t as chilled as it should be.
- You’re hearing hissing or bubbling racket when the air conditioning works.
- Your evaporator coil is iced over on account of having an issue taking on humidity.
Suspect your unit is leaking refrigerant? You need a authorized heating and cooling service specialist to fix the leak and refill the right measurement of refrigerant in your system. Get in touch with us at 610-257-7035 for support.
3. AC Not Blowing Enough Air
When it feels like you’re not having ample amounts of chilled air, there’s potentially a clog or disconnection within your cooling equipment.
- The beginning place is examining your air filter. Replace it if it’s dusty.
- Then make sure the registers are free throughout your house.
- If you’re still not getting sufficient chilled air, you should have your ducts inspected by a expert like O'Brien Heating & Air Conditioning. Your ductwork may need to be fixed or hooked up again in limited space areas like your attic, basement or crawl space.