Goodman Air Conditioner Problems And How To Fix

You do not have to be an expert on air conditioner units to tell when something is wrong with your central air conditioner. When you’re aware of the various problems that Goodman air conditioners experience, you will understand your unit.

Are Goodman Air Conditioners Reliable?

Goodman AC units aren’t the most advanced systems for technology or the most efficient, but they are very reliable. Apart from being reliable, they are affordable and have a 10-year limited parts warranty and a two or 10-year unit replacement warranty. Amazing, right?

How Do I Reset My Goodman Air Conditioner?

Just like restarting your computer when there’s a problem, at times, all your Goodman HVAC system could need is a reset to get it back to normal and working as expected. Sometimes the electrical components of your air conditioner could need a reboot.

Most, but not all, Goodman products have a reset button located along the bottom edge near the ground, and the button is always red and quite visible, so spotting it is easy. If your air conditioning unit lacks a reset button, then be sure to follow these troubleshooting tips to reset the unit.

  1. Shut off the power to the condenser.
  2. Shut off the breaker in your circuit breaker box.
  3. Unplug the unit from the power supply board and disconnect the air conditioner.
  4. Wait for about 30 minutes, then plug the air conditioning system back in.
  5. Ensure you set the thermostat to a cooling system, then switch the breaker back on and the external power supply.

If your problem has not been resolved, contact an HVAC tech to check the unit.

Goodman Air Conditioner Problems and Solutions

Below are some of the most common problems that Goodman air conditioning systems face.

Goodman Air Conditioner not Turning On

One of the most fundamental problems causing your heating equipment not to turn on is if the power source is not on. Another reason that could be causing your AC unit to turn on is a thermostat malfunction. Check if the batteries to your thermostat are working, and if they are, check whether the thermostat display is lit.

If your HVAC unit is low on refrigerant, then it will cause your AC unit not to turn on. Low refrigerant levels occur due to refrigerant leaks due to the formation of cracks in the AC coils.

A defective capacitor will force your unit not to turn on. Why? The capacitor is connected to the motor’s circuit and works by giving the motor a push to start running and disconnects once the motor reaches a specific speed.

Dormancy issues could also make the air conditioner not turn on. If your cooling system was lying off, especially in winters, and you switch it on after a long time, then the unit’s fans may find it hard to start rotating again. The fans not rotating once more could be due to the accumulation of dirt.


By calling a technician, they could help bring the refrigerant levels back to normal, do not try doing this yourself. Check the power switch and make sure it’s turned on. An HVAC guy will also help you reset the fans manually if they have been dormant for a while.

2. Goodman Air Conditioner not Cooling

Your air conditioner is not blowing cold air due to clogged and a dirty air filter. A clogged filter will hinder proper airflow through the air conditioner. Clogged air filters will also cause the evaporator coil to frost over.

Dirty condenser coils will also cause your system not to cool. Condenser coils work by dissipating the heat as the refrigerant passes through the coils, and if they are dirty, the condenser coils will not be able to dissipate. Another reason behind your unit not cooling is a defective compressor.


Regularly clean and replace your air filters, which go to the condenser coils. A defective compressor will need replacement with a brand new one.

3. Goodman Air Conditioner Noisy or Loud

If dirt particles, leaves, or sticks are stuck in the condenser, your air conditioning unit will produce a noisy or loud sound. This is usually common if your outdoor AC unit is surrounded by shrubs, as the tiny leaves and twigs are likely to get stuck if you forget to clean your unit regularly.

Loose screws could also be a reason for the rattling noise coming from your unit. When you turn on your unit, both the indoor and outdoor units vibrate, and over time the vibration can cause the crews around them to become loose.

Another reason for the noisy sounds is a broken motor fan or an imbalanced motor. A broken compressor will also cause your unit to make loud sounds.


Always clan your condenser regularly to ensure no dirt, twigs, or leaves accumulate in the unit. Be sure to tighten up the loose screws using a screwdriver. Contact a technician to better understand the situation as replacing a broken motor fan or compressor could be expensive.

4. Goodman Air Conditioner Leaking Water

One of the most common problems for leaking water is low refrigerant levels. As the refrigerant levels go down, the unit’s pressure also lowers. This, in turn, causes the evaporator coils to freeze hence creating a mess.

A clogged condensate drain line with dust, debris, dirt, or mold will cause water to escape and drain outside the home. Dirty filters will also make your HVAC unit leak water. A dirty filter causes your air conditioner to work extra hard, resulting in possible damage and wear out to your unit.

The dirty filters result in poor airflow causing the evaporator coils to freeze up, and as the frozen coil melts, the excess water may start flowing out of the unit to your home.


Contact your technician to help you get the refrigerant levels back to normal. Make sure to clean your air filters regularly. On the condensate drain line, try to unclog it to remove any debris or dirt from it.

5. Goodman Air Conditioner Short Cycling

Your AC system short-cycling is caused by several reasons, such as frozen evaporator coils. Sometimes ACs freeze up when they are running during cold seasons. The freezing of evaporator coils is usually due to dirty filters.

Wiring and electrical problems such as loose or corroded electrical connections can also cause short cycling to your AC system. Another reason for short cycling has an oversized system. Oversized heat pumps or air conditioners are likely to overshoot the target temperature, cycle off, and cycle back.


It would be best if you had an HVAC technician to safely help you repair the electrical problems and make sure you replace your air handler with a sizeable unit that fits your room. When it comes to frozen coils, ensure you shut down your system and allow it to thaw completely.

6. Goodman Air Conditioner not Blowing Hard

A loose fan belt, a dead blower motor, or a clogged fan will always prevent the blower fan from blowing enough air out of the vents to keep your home cool.


An HVAC technician will help you solve the issue, so be sure to contact one from Goodman manufacturing company.

7. Goodman Air Conditioner Fan not Running

A lousy capacitor will always cause your air conditioner fan not to run as expected. The capacitor provides energy to your unit’s motor and is responsible for starting up the system and providing additional power to keep the unit running.

Another reason behind the fan not running is a broken motor. The condenser fan motor on your system turns the blades of the fan to blow outside air across the condenser coils and, in turn, converts hot refrigerant gas into a cool liquid. So a broken or faulty motor is why your system’s fan will stop spinning.


The only way to fix a bad capacitor is by contacting a service technician to help you with the matter. An HVAC guy will also help with a broken motor since it will need replacement.

8. Goodman AC Compressor not Turning On

Your unit’s compressor not turning on is due to dirty condenser coils, blocked suction lines, low refrigerant charge, electrical problems, or insufficient oil lubricant.

Another reason for a compressor not turning on is tripped breakers or blown fuses. Dirty condenser coils also contribute t the compressor not turning on whenever you switch your air conditioning unit on.


Ensure you clean the condenser coils as regularly as possible, and tripped breakers need to be replaced with new ones.

9. Goodman Condensing Unit is not Running

Your condensing unit not running could be due to a blown fuse to the circuit breaker. In most cases, the blown fuse is due to an overloaded circuit breaker which happens when the air conditioner is overworked or loose wires.

Another reason behind the condensing unit not working is a fallen capacitor. Since the capacitor holds the energy that the outside unit needs to power on, a humming sound will come out of the unit if the capacitor is defective. This sound is due to the condenser fan trying to spin without power from the capacitor.


Check the circuit breaker and see if it has a blown fuse, then turn it off, then back again, and if it immediately trips, know that there’s a problem that needs attention from a technician. A fallen capacitor will also need replacement with a new unit.

10. Goodman Air Conditioner Coil Problems

One common coil problem that most ACs face is frozen evaporator coils. This occurs when insufficient airflow, low refrigerant levels cause a refrigerant leak, faulty capacitor, or dirty air filters.


Clean the dirty air filters and replace them often. Look for closed supply vents causing airflow problems and get rid of things that may be blocking the vents. A refrigerant leak is due to a cracked coil, which means you will have to replace it with a new refrigerant.

Goodman Air Conditioner Error Codes

Code A2- Open or short sensor, sensor disconnected, or sensor out of range.

Code B0- Indoor blower motor problem as communication error between indoor and outdoor unit.

Code B9- Indoor blower motor problem, blocked filters, indoor-outdoor mismatch, and undersized ductwork.

Code D0- The air conditioner or heat pump is wired as part of a communicating system, and the integrated control module does not contain any shared data.

Code D3- The shared data sent to the integrated control module does not match the hardware configuration.

Code 01- Low refrigerant charge, indoor blower motor failure, restriction in the liquid line, and indoor thermostat set too low.

Code 02- A blocked condenser coil or outdoor fan not working.

Code 04-Failed compressor run capacitor, faulty compressor wiring, or compressor bearings are seized.

Code 05- Power is disconnected, compressor not appropriately wired, or a failed compressor protector.

Code 06- Faulty run capacitor, compressor start winding is open, or faulty compressor wiring.

Code 07- Compressor not correctly wired to control or faulty compressor wiring.

Code 08- Low line voltage or high line voltage

Code 09- Control detects secondary voltage less than 18, transformer overloaded, or low line voltage.

Maintenance Tips For Goodman Air Conditioners

Change the air filters regularly- You need to frequently replace your air filters at least after every 30 days, primarily if you constantly use your air conditioner. Changing the air filters ensures that your unit serves you the longest.

Clean the drain line- The drain line is sometimes clogged with dirt and mold and needs regular cleaning to unclog it.

Get a programmable thermostat- Having a programmable thermostat will help avoid leaving your AC system running even when the room is already cooled. A programmable thermostat will shut the unit when it’s not in use.

Schedule professional maintenance- Get yourself a sound technician from a company with a good reputation to service your unit. Contacting an HVAC guy once or twice a year ensures that your air conditioning system stays efficient for as long as possible.


It’s essential to understand your Goodman air conditioner and the problems and try as much as possible to follow these guidelines to maintain it.

Please do not ignore any possible signs; pay attention, and be ready to do whatever it takes to maintain your AC unit’s efficiency.