Goodman ac unit not cooling. A problem you can fix on your own. There are a lot of reasons why your air conditioner is running, but not lowering the temperature in your home.
Ranging from simple issues like a thermostat set incorrectly or a dirty filter to complex problems that require replacing components.
Below you will find a list of things to check before calling a repairman to our troubleshooting for an air conditioner.
Goodman ac unit not cooling
How do Goodman air conditioners work? The air conditioner in your home is designed to cool and dehumidify the air in your home. Now let’s take a look at some other things that can go wrong with an air conditioner that does not cool.
Clogged or dirty air filter
If a clogged air filter prevents the flow of fresh air through the AC unit, you both sacrifice cooling capacity and risk damaging the evaporator coils.
Besides, the compressor may not turn on if the circuit is overloaded by dirt or if the thermostat is set too low. And even though most filters don’t need replacing often.
You need to be ready with a replacement at hand when needed as it helps protect your system from dirt build-up and keeps filters clean for larger particles that might damage them otherwise.
Replace the thermostat
The thermostat activates the cooling system in certain conditions, such as when the temperature exceeds a certain set level. If the thermostat is defective, then it may not activate the cooling system when required.
To check if it’s at fault, power off the air conditioner and use a multimeter to test its resistance while connected (or unconnected) to either ground or line power. If there is no continuity while it’s connected to ground power, then the thermostat may be defective.
The compressor is probably defective, but this is only a common problem. Before replacing the compressor, you should check more commonly defective components particularly overload protectors and capacitors.
If your compressor needs to be replaced, only a licensed technician can do it.
Dirty condenser coils
Condenser coils are essential for an air conditioner to operate efficiently. Just as the coils cleanse the refrigerator of any remaining moisture, they also dispel unwanted heat energy for your air conditioning system.
When your refrigeration coils or condenser coils are dirty, partially clogged, or otherwise compromised, it can lead to a variety of problematic issues from increased humidity in the home to improper air circulation and inefficient operation.
Therefore, it’s important that you regularly clean these external components of your AC unit on a biannual basis so that debris doesn’t adversely affect its functionality.
The temperature Control Board does not work
Whenever the heat or air conditioning unit is not working as it should, there are many components that could be specifically at fault.
The first step to diagnosing a problem with your Air Conditioning system is to determine where exactly in the process the error occurs by testing each component individually.
If it fails to turn on, try replacing those parts of your system however if all other attempts have failed you will need to replace the temperature control board system.
Faulty Main Control Board
Compressors and fans need to run on the correct voltage from a device called the main control board. If your main control board fails, your fan or compressor will not work.
Compressors and fans are often misdiagnosed; make sure to check more commonly broken components first before replacing the main control board as they mean you have many other components that can go wrong.
Run Capacitor does not have to continue
The run capacitor is the backbone of a refrigerator’s system. The capacitor is located inside the refrigerator and it is connected to both the compressor and the condenser coils with electrical leads.
If the compressor does not get enough power from the run capacitor, it will not start. To determine if there is a problem with the run capacitor, test if there is continuity in both legs (poles) of the capacitor using a multimeter. If there’s no continuity, replace it.
An issue with Thermistor
A thermistor is a component that provides resistance based on temperature. When the board senses changes in the surrounding air, it adjusts internal resistance to correspondingly reflect a change in temperature.
To determine if your thermistor is broken or malfunctioning, use a multimeter to check for continuity.
If the component does not have continuity or a complete circuit across its pins (totaling to open\close), discard and replace your thermistor with another of similar resistance as specified on your user’s manual.