Your dehumidifier is designed to keep your home comfortable by removing excess moisture from the air. But like any appliance, it may occasionally run into issues that trigger an error code on the display. Seeing a code you don’t recognize can be frustrating, but don’t worry—these error messages are your dehumidifier’s way of telling you what’s wrong and how to fix it.
In this guide, we’ll walk you through the most common dehumidifier error codes, what they mean, and the steps you can take to resolve them. Whether it’s a simple filter reminder or a more technical issue requiring troubleshooting, understanding these codes will help you get your dehumidifier back to optimal performance quickly. Let’s dive in!
E3 Error
If your dehumidifier is turning off and on and then displaying Error Code E3, this typically indicates a low refrigerant issue. Before seeking service, try the following troubleshooting steps to see if the issue can be resolved:
General Troubleshooting Steps:
- Check Power Source – Are you using a power strip or surge protector? If so, plug the dehumidifier directly into a wall outlet.
- Reset the Unit – Unplug the dehumidifier from the outlet and leave it unplugged for at least 4 minutes.
- Inspect the Drain Hose – Ensure the hose is free from kinks or folds and verify that liquid can flow through it properly.
- Adjust the Humidity Setting – Set the humidity level to 40.
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Perform a System Reset – Press and hold the FAN SPEED button and TIMER button at the same time until the unit beeps 4 times.
- If the unit only beeps 2 times, repeat the process until you hear 4 beeps.
- Test the Unit – Turn it on and observe whether the error reappears.
Additional Steps for M Series Models:
If you have an M Series dehumidifier, follow these additional steps:
- Unplug the Unit – Leave it unplugged for at least 3 minutes to reset.
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Check & Clean the Air Filter
- Remove the filter and inspect it for dust buildup.
- If needed, vacuum the filter or wash it with warm water and mild detergent.
- Allow the filter to fully air dry before reinserting.
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Inspect the Coils
- With the filter removed, check the coils on the back of the unit.
- If there is dust, dirt, or hair buildup, carefully vacuum them.
- Reset the Filter LED (if it is on) – This indicator works on a timer and is not tied to filter cleanliness.
- Check Room Temperature – Ensure the room temperature is above 41°F (5°C), as low temperatures can trigger this error.
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Plug the Unit Back In & Power On
- If your dehumidifier has a pump, disable the pump function while troubleshooting.
- Monitor for Error Codes – If the E2 or E3 error returns, the unit may require service. The issue could be related to the humidity sensor, but a professional inspection is needed to confirm.
Error E1/E2 - Temperature Sensor Fault
Possible Causes of the Error:
- The temperature sensor may have failed.
- The main control PCB may be malfunctioning.
Troubleshooting Steps:
- Perform a Power Cycle – Unplug the unit from the power outlet and leave it unplugged for 3-5 minutes before plugging it back in.
- Check the Power Source – Ensure the dehumidifier is plugged directly into a wall outlet and not into a power strip, surge protector, or extension cord.
Additional Checks for Dehumidifiers:
- Inspect the Drain Hose – If a hose is attached, make sure it is free of kinks or folds that could block proper drainage.
- Check the Water Bucket – Ensure the bucket is properly inserted and seated in place.
After completing these steps, turn the unit back on and monitor for any error messages. If the issue persists, the unit may require service. For further assistance, please contact TCL Customer Support.
Error EH - Humidity Sensor Fault
Troubleshooting Steps:
- Perform a Power Cycle – Unplug the unit from the power outlet and leave it unplugged for 3-5 minutes before plugging it back in.
- Check the Drain Hose – If using a garden hose for drainage, ensure it is free from any kinks or folds that could block water flow.
- Verify the Water Bucket – Make sure the bucket is properly closed and securely in place.
After completing these steps, turn the unit back on and check if the issue is resolved. If the problem persists, please contact TCL Customer Support for further assistance.
Error P1 in Dehumidifiers
Possible Cause:
- The bucket may be dislocated.
- The bucket was removed and not inserted properly.
Troubleshooting Steps:
- Reinsert the Water Bucket – Remove the bucket and securely place it back into position.
- Perform a Power Cycle – Unplug the unit from the power outlet and leave it unplugged for 3-5 minutes before plugging it back in.
- Check the Power Source – Ensure the unit is plugged directly into a wall outlet, not a power strip, surge protector, or extension cord.
- Inspect the Drain Hose – If a garden hose is attached, check that it is free from kinks or folds that could block drainage.
- Ensure the Bucket is Properly Closed – Confirm that the bucket is fully inserted and latched correctly.
After completing these steps, turn the unit back on and check if the issue is resolved. If the problem persists, please contact TCL Customer Support for further assistance.
E5 Error Code Dehumidifier Pump Sensor Fault
Troubleshooting Steps:
- Perform a Power Cycle – Unplug the unit from the power outlet and leave it unplugged for 5 minutes before plugging it back in.
- Check the Power Source – Ensure the unit is plugged directly into a wall outlet, not a power strip, surge protector, or extension cord.
- Inspect the Drain Hose – If using a garden hose for drainage, make sure it is free from kinks or folds that could block water flow.
After completing these steps, turn the unit back on and check if the issue is resolved. If the problem persists, please contact TCL Customer Support for further assistance.