Air Conditioner Repair Checklist
1. AC Won’t Turn On
There can be several causes why your air conditioning won’t start: a tripped circuit breaker, wrong thermostat settings, a switched off switch or an overflowing condensate drain pan.
Triggered Circuit Breaker
Your system won’t turn on when you have an overloaded breaker.
To check if one has tripped, locate your house’s main electrical panel. You can spot this gray box on the wall in the basement, garage or closet.
- Make sure your hands and feet are dry before you work on the panel or breakers.
- Look for the breaker marked “AC” and ensure it’s in the “on” location. If it’s overloaded, the switch will be in the "off" position.
- Steadily transfer the switch back to the “on” location. If it instantaneously flips again, leave it alone and get in touch with us at 916-243-6714. A breaker that keeps flipping could signal your home has electrical trouble.
Inaccurate Thermostat Settings
If your thermostat isn’t signaling your system to start, it won’t turn on.
The first step is ensuring it’s set to “cool” and not “heat.” Otherwise your AC might not switch on. You may also get warm air moving from vents since the heater is running instead.
If you rely on a traditional thermostat:
- Swap out the batteries if the monitor is clear. If the monitor is displaying garbled letters, get a new thermostat.
- Check the right setting is displaying. If you can’t change it, cancel it by dropping the temperature and hitting the “hold” button. This will force your AC to work if scheduling is wrong.
- Attempt to set the thermostat 5 degrees cooler than the house’s temperature. Your AC won’t cool if the thermostat is set the same as the house’s temperature.
Once your thermostat is adjusted properly, you should start getting cold air quickly.
If you rely on a smart thermostat, including ones manufactured by Nest, Ecobee, Lux, Honeywell or Bosch, look at the manufacturer’s website for help. If you still can’t get it to work, call us at 916-243-6714 for help.
Your system typically has a shut-down lever by its condenser. This switch is typically in a metal box mounted on your home. If your equipment has recently been worked on, the switch may have accidentally been turned off.
Overflowing Condensate Drain Pan
Condensate drain pans keep the additional water your air conditioner pulls from the air. This pan is located either below or inside your furnace or air handler.
When there’s a blockage or backed up drain, water can accumulate and initiate a safety setting to switch off your unit.
If your pan involves a PVC pipe or drain, you can clear the surplus condensation with a custom pan-cleaning tablet. You can purchase these tabs at a home improvement or hardware shop.
If your pan has a pump, look for the float switch. If the lever is “up” and there’s moisture in the pan, you could need to replace the pump. Call us at 916-243-6714 for assistance.
2. AC Blows Warm Air
If your air conditioner is going but not providing cold air, its airflow may be obstructed. Or it might not have sufficient refrigerant.
Your system’s airflow can be limited by a plugged air filter or dirty condenser.
How to Replace Your Air Filter
A filthy filter can lead to countless issues, like:
- Lower airflow
- Icy refrigerant lines or evaporator coil
- Inconsistent cooling
- Bigger cooling bills
- Making your system wear out sooner
We propose installing new flat filters once a month, and pleated filters every three months.
If you can’t recall when you last replaced your filter, switch off your system completely and pull out the filter. You can spot the filter in your furnace or air pump’s blower compartment. It might also be located in a connected filter holder or wall-mounted return air grille.
Angle the filter up to the light. If you see a lot of dust, you certainly should buy a new filter.
4 Steps to Cleaning Your Cooling System
Weeds, plants and sticks can block your condensing system. This can limit its airflow, lower its energy efficiency and affect your comfort. Here’s a way you can get your unit working well again.
- Switch off the electrical current totally at the breaker or external switch.
- Remove greenery waste around the AC. Once you’ve removed all the clutter within a two-foot radius, you can use a soft brush or vacuum to slowly remove dirt from the condenser fins. Crooked fins can also impact capability.
- Use a hose nozzle to carefully remove gunk off the fins from inside the equipment. Don’t get water on the fan motor.
- Turn the power back on.
Low Refrigerant Levels
When air conditioning units don’t have sufficient refrigerant, they’ll have to work much harder to remove heat and humidity from your home.
Here are a few indications that your unit is seeping refrigerant:
- It takes an extended amount of time to cool your residence and you’re regularly lowering the thermostat.
- Air conditioning blowing through the registers isn’t as chilled as it should be.
- You’re hearing hissing or burbling sounds when the air conditioning works.
- Your evaporator coil is icy on account of having an issue absorbing warmth.
Worried your equipment is leaking refrigerant? You need a licensed heating and cooling service expert to take care of the leak and replenish the correct measurement of refrigerant in your unit. Reach us at 916-243-6714 for assistance.
3. AC Not Blowing Enough Air
When it appears like you’re not having enough cool air, there’s likely a blockage or separation within your air conditioning unit.
- The beginning place is checking your air filter. Replace it if it’s dirty.
- Make sure the ductwork is open throughout your rooms.
- If you’re still not receiving sufficient cold air, you should have your ductwork checked by a expert like American HVAC Inc. Your ductwork could need to be serviced or hooked up again in difficult areas like your attic, basement or crawl space.