Here are common Whirlpool portable air conditioner error codes that you may encounter when using your unit. Portable air conditioners are a convenient way to cool a room, but like all appliances, they can sometimes encounter issues that need to be addressed.
In this guide, we will discuss the most common error codes associated with Whirlpool portable air conditioners and provide you with information on how to troubleshoot them.
Whirlpool Portable Air Conditioner Error Codes Explained:
Remember to always unplug the unit and exercise caution when attempting any repairs.
E1: Indoor ambient temperature sensor error
If the indoor ambient temperature sensor malfunctions, the air conditioner will stop working to prevent damage, and the error code “E1” will appear.
Causes:
- Damage to the sensor harness.
- Disconnected sensor.
- Open or short-circuited sensor.
Solutions:
- Inspect the sensor harness for any damage or breaks.
- Verify the connection of the sensor to the main board.
- Check for any moisture around the connector.
- Measure the ohm reading of the sensor.
| Electric part name | Temperature | Ohmic value |
|---|---|---|
| RT Sensor | 25°C | ~ 5.4 KΩ |
E2: Indoor tube temperature sensor error.
When the indoor tube temperature sensor experiences a failure, the air conditioner will turn off for protection, and “E2” will appear.
Causes:
- Damage to the sensor harness.
- Disconnected sensor.
- Open or short-circuited sensor.
Solutions:
- Inspect the sensor harness for any damage or breaks.
- Verify the connection of the sensor to the main board.
- Check for any moisture around the connector.
- Measure the ohm reading of the sensor.
| Electric part name | Temperature | Ohmic value |
|---|---|---|
| IN-Door Sensor | 25°C | ~ 5.4 KΩ |
E3: Error with the outside tube temperature sensor.
In the case of a heat pump-type air conditioner, if the outside tube temperature sensor malfunctions, the unit will turn off and display the error code “E3”.
Causes:
- Damage to the sensor harness.
- Disconnected sensor.
- Open or short-circuited sensor.
Solutions:
- Inspect the sensor harness for any damage or breaks.
- Verify the connection of the sensor to the main board.
- Check for any moisture around the connector.
- Measure the ohm reading of the sensor.
| Electric part name | Temperature | Ohmic value |
|---|---|---|
| OUT-Door Sensor | 25°C | ~ 5.4 KΩ |
E5: Full water tank notification
In the event that the high-water level switch is closed, the air conditioning unit will stop working for protection, and “E5” will appear on the display.
Causes:
- The water tank is full of water.
- The float switch is not functioning properly.
Solutions:
- Empty the water tank manually.
- If the tank is empty and the error code is still displayed, test the float switch circuit.
- Inspect the wiring between the main board and the float switch for any breaks.
- Check the float for any physical issues or obstructions.
E6: Upper motor malfunction.
When the upper electric motor fails to provide feedback, the air conditioner will turn off for protection, and “E6” will be displayed. On the other hand, “E7” will be displayed when there is a lower motor malfunction.
Related error code:
- E7: Lower motor malfunction.
Causes:
- The fan motor is physically jammed.
- Defective fan motor.
- Faulty main board
Solutions:
- Attempt to turn the fan by hand and check for any obstructions around the fan that could be causing it to jam.
- Test the fan circuit.
- If voltage is present at the fan but it still doesn’t turn, replace the fan motor.
- If there is no voltage to the fan, replace the main board.
EA: communication failure between the main board and user interface board.
This error message is displayed when the communication system malfunctions. The possible causes of this error code include a supply voltage issue, a wiring problem between the main board and the UI board, or a defective board. To resolve the issue, you should first ensure that the supply voltage to the unit is within the correct range and matches the rated voltage required. You should also check the wiring harness to ensure it is properly connected and not damaged. If any issues are found, replace the wiring harness or reseat connectors on both boards. If the issue persists, you may need to replace the main board or UI board.
Conclusion:
Understanding the error codes associated with your Whirlpool portable air conditioner can save you time and money in the long run. By knowing how to troubleshoot common issues, you can avoid costly repairs or replacements and keep your unit running efficiently.
I am a master Appliance Repair technician with over 35 years of experience in the field. I am passionate about helping people troubleshoot their appliances and fix common problems. My website, appliancemode.com, provides a wealth of information on troubleshooting common appliance issues and deciphering error codes. This website aims to empower people to tackle appliance repairs themselves and save money on service calls.
