Hisense Air Conditioner: E5 Error Code

If your Hisense portable air conditioner is flashing the E5 error code, then it simply means that the water collection tank needs to be drained. While this is an easy fix, frequent E5 errors may indicate an underlying problem with your unit.

The water collection tank, or drain pan, is meant to catch the condensate dripping from your unit. The drain pan may fill up from time to time, especially if you live in an area with high humidity in the air. However, if you find yourself frequently draining the water collection tank, check for any problems or issues with your unit.

Troubleshooting the E5 Error Code

To troubleshoot the E5 error code, simply shut off your Hisense portable air conditioner using the power button, and carefully remove the drain pan from the unit. Dump out the water, and give the water collection tank a proper cleaning before placing it back into the unit. Your air conditioner should function normally.

Causes of the E5 Error Code

#1 Clogged Condensate Drain Line

The most common cause of the E5 code is a clogged condensate line. This condensate line is what delivers the condensation from the unit to the water collection tank, but it can get dirty and clogged from time to time.

Depending on the model of your portable air conditioner, you may be able to unplug the condensate line from the unit. Unclog the dirt and debris from inside the pipes, then let it air dry for a few hours before placing it back into the unit. Plug the condensate line back into place, and see if this solves the issue.

#2 Dirty Air Filter

A dirty filter limits the air circulation around your unit, leading to poor airflow, and a plethora of common AC issues such as overheating and faulty compressor. A portable air conditioner with a dirty or clogged filter may not provide cool temperature settings into the room as well, which you may notice from your unit as you power it on.

A dirty filter may be causing condensate to freeze and thaw within the unit, dripping into the water collection tank, and causing the E5 error code. Power off your air conditioning unit, and unplug the unit from the socket. Remove the filter carefully to clean it.

Helpful guide: How to Clean Aircon Filters

Clean the filter by running it under some water, and use a soft-bristled brush to gently brush away at the dirt. Wait for the filter to try completely before placing it back into the unit. Connect the filter into your portable air conditioner, and see if this solves the issue.

#3 Frozen Evaporator Coils

Frozen evaporator coils may ice up, causing an ice buildup inside your unit, around the fan motor, filter, and other components of your AC unit. When heat thaws the ice, the condensate drips down into the water collection tank, filling it up quickly.

Frozen coils may be caused by dirty evaporator coils, which can be easily cleaned with a vacuum cleaner and a can of compressed air. Clean the evaporator coils regularly to ensure your aircon unit is working in tip top condition!

#4 Refrigerant Leak

A refrigerant leak can be a serious issue with your Hisense portable air conditioner. The AC unit relies on refrigerant to operate, and regulate the temperature within the room. Without refrigerant, your air conditioner cannot sufficiently cool down the area.

Refrigerants are also hazardous to your health, and should be handled only by professional aircon technicians. A refrigerant leak may cause problems within your air conditioner such as a frozen AC unit, which may have caused condensation to pool in the drain pan.

More Error Codes

Not the right error code for your Hisense portable air conditioner? Check out our full list of Hisense error codes on our blog, or contact one of our licensed technicians to fix the issue for you! At Luce Aircon, you can trust we'll enhance your air conditioner experience with top notch cleaning, maintenance, and repair services!

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Check out our guide on troubleshooting Hisense portable aircons