/ / / How to Fix E8 Error Code Window Air Conditioner: 2023 Solution Guide

How to Fix E8 Error Code Window Air Conditioner: 2023 Solution Guide

How To fix E8 error code window air conditioner? It is one of the most asked queries by AC owners. If you are also one of those, then don’t worry! I’ve got a comprehensive guide to bring back the chill in your space! 

Read on to learn about 4 possible causes behind the E8 error code and its solution. So, without wasting any time, let’s get started!

An Insight Into E8 Error Code

The E8 error on the window AC means the temperature sensor is malfunctioning. Due to the faulty sensor, the AC will not be able to adjust its temperature and keeps on displaying the error message.

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4 Reasons Behind Error E8

The Error 8 code in window air conditioners can have various causes, and it’s essential to diagnose the specific issue to address it correctly. Let’s dive into the details!

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1. Clogged Air Filters

When your air filters are dirty, this will lead, the:

  • The air conditioner’s airflow will be restricted, impacting the fans and resulting in fan speed malfunction.
  • This can also block the system, which prevents your air conditioner from drawing in enough air to maintain the desired temperature in the room.
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Hence, there might be an E8 error depicting a problem in the temperature sensor. Additionally, with time, your AC will lose durability if it has to work hard to chill your room. 

2. Fan Speed Malfunction

You might also experience a problem with the fan speed if the fan motor is not functioning correctly. Also, water will get into the winding when there is a voltage issue, making the capacitor not work. Subsequently, this will cause a faulty fan motor.

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Note: Moreover, problems with the fan motor also arise if the belt drive bearings lose lubricant.

3. Wiring Problems

The wiring issues brought on by poor installation could be another potential cause of an E8 error. This will lead to broken boards and malfunctioning compressors. So, make sure you’re replacing the wirings to eliminate bigger problems. 

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4. Bad Control Boards

Last but not least, if the control board is short-circuited or malfunctioning, it will result in an E8 error. For this, the only thing you can do is to replace the board. 

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How To Fix E8 Error Code Window Air Conditioner?

Listed below are the easy steps to resolve the E8 error code on window AC. Let’s check them out:

  • Turn Off The Conditioner: Start by turning off the conditioner and unplugging it from the power source to ensure your safety while working on it
  • Check The Filter: Open the frame with a screw drive and check the filters. A dirty or clogged filter can trigger the E8 error code. Remove the filter and clean the frame thoroughly with a leaf blower or a wire brush. If it’s damaged or dirty to clean, consider replacing it with a new one.
  • Inspect The evaporator and Condensor Coils: Over time, dust and debris can accumulate on the condenser coils, reducing the unit’s efficiency. Therefore, gently use a soft brush or vacuum cleaner to clean the coils.
  • Inspect Condensate Drain: Next, check the drain for obstructions and clear any blockages.
  • Check for Refrigerant Leaks: Low refrigerant levels can also trigger this issue. So, inspect the refrigerant lines, and if you suspect a leak, call the professional to repair or recharge it. 
  • Inspect the Temperature Sensor: A faulty temperature sensor can cause an error code. Therefore, ensure it is properly connected and not corroded. If it appears damaged, you may need to replace it. 
  • Reset the Unit: After all the inspections. You need to reset the air conditioner.

For more insights, I would recommend you check out this helpful video.

Resolving E8 Error on Split AC

When a split air conditioner displays error code E8, it usually means a problem with the indoor fan motor or one of its associated parts. Besides, there could be issues with extreme temperatures. 

Here are some things to try if your split air conditioner is giving you an E8 error:

1. Faulty Fan Motor

If your air conditioner reports trouble code E8, the first thing you must look for is always the faulty fan motor. It is one of the most common causes since it is a crucial component of AC as it powers the fan responsible for cool air circulation. 

Besides, your faulty motor can stop working for a number of reasons. For instance:

  • Capacitor failure;
  • Voltage problems;
  • Water dripping into the windings;
  • Fan speed malfunction;
  • High humidity.
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The following guidelines will help you get rid of motor problems: 

  • Open the front cover of the air conditioner to access the fan motor assembly. This usually involves removing screws or clips.
  • Carefully disconnect the wires connected to the fan motor. Please note the wire colors or take a picture to remember their positions.
  • Use a multimeter to check if the faulty fan motor is receiving power. If not, inspect the wiring and connections for faults.
  • If the motor is faulty, replace it with a compatible one. Ensure the new motor matches the voltage and specifications of the old one.

2. Clogged Indoor Air Filters

As soon as your split air conditioner heats up, it will show an Error 8, meaning your indoor air handling unit is clogged. When it is obstructed, cold air flow is restricted, making the motor do all the hard work. Therefore, to protect it from dust and debris, you should regularly clean it.

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Let’s see how you can do the cleaning process easily: 

  • Remove the front panel to access the air filters.
  • Wash them in hot and soapy water.
  • Let them dry and put them back in the position.
  • The last step is to reset the device by turning it off at the control panel and then letting it sit idle for at least 30 minutes without power.

3. Damaged Control Boards

The split AC unit is far superior to the traditional window unit. It has multiple control panels to allow you to adjust the system to your own needs. However, if any board starts malfunctioning, it will result in an E8 code.


So, here’s a simple technique to keep it running for long: 

  • Remove the front panel and cover to access the control boards.
  • Use a multimeter to diagnose the damaged components and circuits on the control board. 
  • Identify any components that are visibly burnt or have blown fuses.
  • If you’ve identified specific damaged components, such as capacitors, resistors, or integrated circuits, carefully desolder them and replace them with new ones with the exact specifications.
Credit: www.youtube.com @DuctlessAire Mini Split Systems

However, when working with control boards, you must take extra precautions. Usually, it’s advisable to seek professional help to save yourself from spending a lot on a single mistake. 

An Easy Guide to Reset an Error 8

When you’ve checked all the possible reasons and the problem persists, you might need to reset Error 8. For this, you can simply shut off the appliance and the circuit breaker to clear it. Here’s how to do it: 

  • Switch off the power source for the device, then unhook the power cord from the wall.
  • Turn off the circuit breaker that supplies power to your air conditioner. This is located in the main electrical panel in your house.
  • Wait a while (approx 3 minutes) before turning the power supply and circuit breaker back on.
  • If the E8 error code reappears, repeat steps 1 and 2 until it is gone.

However, before resetting the code, it is essential to keep in mind that you should first identify the potential causes. The culprits might be clogged air filters, faulty wiring, or broken fan motors, which can be rectified during routine maintenance procedures.


How do I fix my E8 air conditioner?

To fix your E8, turn off the air conditioner and unplug the breaker. Turn it back on after three minutes of waiting. If you attempt this and the error code appears, you must further troubleshoot the device to identify the issue.

What is the E8 code on a GE window air conditioner?

When a GE air conditioner displays the diagnostic number E8, it means the evaporator coils are malfunctioning. This error is brought on by an accumulation of ice or frost on the coils, which can cause airflow blockage and lead to an overheated device.

How do I fix error code E8 on my Frigidaire air conditioner?

You can fix error code E8 on Frigidaire AC by cleaning the dirty air filter and condenser. Also, check the refrigerant level. If nothing works, then it is recommended to seek professional help.

How do you reset a window air conditioner?

To reset a window AC, unplug the unit for a few minutes to discharge any stored energy. Then plug it back in and restore power by flipping the circuit switch. This should complete the resetting process.


To summarize it all, how to fix E8 error code window air conditioner is not rocket science. It indicates a problem with the temperature sensor and can result from issues like clogged air filters, faulted fan motors, damaged control boards, or wiring problems.

You should try cleaning the blocked filters and condenser coils. Also, check out the refrigerant levels. Moreover, if control boards are faulty, you should replace them.

When working with air conditioners, you should always prioritize safety by unplugging them before any repair work. If the issue persists after all troubleshooting steps, it is best to seek expert help. Have you also faced this issue? Share your experience with me in the comments.

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