Air Conditioner Repair Checklist
1. AC Won’t Turn On
There can be several explanations why your air conditioner won’t start: an overloaded circuit breaker, incorrect thermostat settings, a shut off switch or a full condensate drain pan.
Overloaded Circuit Breaker
Your air conditioner won’t start when you have an overloaded breaker.
To check if one has tripped, locate your residence’s main electrical panel. You can locate this metallic 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 labeled “AC” and ensure it’s in the “on” spot. If it’s tripped, the breaker will be in the middle of the panel or “off” location.
- Steadily transfer the switch back to the “on” spot. If it instantly trips again, don’t reset it and reach us at 319-229-2318. A breaker that keeps flipping could mean your home has electrical trouble.
Incorrect Thermostat Settings
If your thermostat isn’t telling your air conditioner to work, it won’t turn on.
The key part is ensuring it’s set to “cool” and not “heat.” Otherwise your air conditioning might not start running. Or you might have warm air blowing from vents because the heater is on instead.
If you have a regular thermostat:
- Put in new batteries if the readout is clear. If the monitor is displaying scrambled characters, replace the thermostat.
- Make sure the correct option is displaying. If you can’t change it, cancel it by dropping the temperature and pressing the “hold” button. This will make your AC start if programming is not right.
- Try setting the thermostat 5 degrees below the room’s temperature. Your AC won’t work if the thermostat is set the same as the space’s temperature.
Once your thermostat is calibrated correctly, you should receive refreshing air promptly.
If you’re using a smart thermostat, like one produced by Nest, Ecobee, Lux, Honeywell or Bosch, go to the manufacturer’s website for help. If it still won’t work, reach us at 319-229-2318 for help.
Your AC typically has a shut-down device by its condenser. This lever is typically in a metal box attached to your house. If your equipment has recently been maintained, the switch may have accidentally been positioned in the “off” location.
Blocked Condensate Drain Pan
Condensate drain pans keep the additional liquid your equipment removes from the air. This pan can be found either below or within your furnace or air handler.
When there’s a clog or blocked drain, water can become concentrated and prompt a safety feature to turn off your equipment.
If your pan includes a PVC pipe or drain, you can get rid of the additional water with a formulated pan-cleaning tablet. You can purchase these capsules at a home improvement or hardware store.
If your pan has a pump, look for the float switch. If the mechanism is “up” and there’s moisture in the pan, you may need to replace the pump. Reach us at 319-229-2318 for support.
2. AC Blows Warm Air
If your AC is working but not providing cold air, its airflow might be blocked. Or it could not have adequate refrigerant.
Your unit’s airflow can be restricted by a blocked air filter or dirty condenser.
How to Replace Your Air Filter
A dirty filter can create a lot of troubles, including:
- Reduced cooling
- Frozen refrigerant lines or evaporator coil
- Uneven cooling
- Larger energy expenses
- Leading your system to wear out sooner
We propose changing flat filters every four weeks, and pleated filters every three months.
If you can’t remember when you last changed yours, shut off your equipment totally and take out 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 case or wall-mounted return air grille.
Angle the filter up to the light. If you can’t see through it, you should buy a new filter.
5 Steps to Cleaning Your Air Conditioning Unit
Brush, plants and leaves can block your condensing equipment. This may reduce its airflow, lower its energy efficiency and change your comfort. Here’s a way you can get your system running well again.
- Shut off the electrical current totally at the breaker or outdoor device.
- Remove yard rubbish around the equipment. Once you’ve gotten rid of bigger clutter within a two-foot radius, you can use a fine-bristled brush or vacuum to carefully remove dust from the unit’s fins. Distorted fins can also affect performance, so you can attempt to straighten them with a small knife.
- Lift off the upper grate of your AC and take out any leaves or sticks that has accumulated. Then wipe down the condenser fan with a wet rag.
- Use a hose nozzle to carefully take off dirt on the fins from inside the equipment. Don’t get liquid on the fan motor.
- Replace the top and turn the power back on.
Not Enough Refrigerant
When air conditioning systems don’t have sufficient refrigerant, they’ll have to work much harder to remove heat and humidity from your house.
Here are several signs that your system is seeping refrigerant:
- It takes too long to refresh your house and you’re constantly turning down the thermostat.
- Air moving through the ducts isn’t as chilled as it should be.
- You’re experiencing hissing or gurgling sounds when the air conditioning is on.
- Your evaporator coil is frosty on account of having an issue handling warmth.
Suspect your equipment is leaking refrigerant? You need a qualified heating and cooling service professional to fix the leak and restore the proper level of refrigerant in your system. Call us at 319-229-2318 for support.
3. AC Not Blowing Enough Air
When it seems like you’re not receiving ample amounts of chilled air, there’s likely an obstruction or detachment inside your AC equipment.
- The beginning stage is examining your air filter. Get a new one if it’s dirty.
- Then make sure the vents are free throughout your rooms.
- If you’re still not experiencing enough cold air, you should have your duct system examined by a professional like WM J Kraus & Son. Your duct system might need to be repaired or reconnected in tricky areas like your attic, basement or crawl space.