Hisense Dehumidifier Error E2 — How to Fix It

What it means

Hisense dehumidifier error E2 means the internal humidity sensor has failed or is reading outside its valid range.
Unplug for 30 minutes and restart.
If E2 persists, the humidity sensor needs professional replacement.

How to Fix It

Unplug and perform a 30-minute reset

Disconnect the dehumidifier from the wall socket and wait 30 minutes.
A temporary sensor read error caused by extreme humidity or moisture on the sensor board often clears after a full power reset.
Move the unit to a less extreme humidity environment

The humidity sensor can trigger E2 if the relative humidity is extremely high (near 100%) or extremely low.
Run the unit in a room with moderate humidity to determine if the sensor recovers.
Allow the unit to dry out

If moisture has entered the electronic compartment, unplug the unit and place it in a warm, dry location for 24 hours.
Moisture on the sensor PCB causes false E2 readings.
Clean the air filter and ensure adequate airflow

Poor airflow affects sensor readings by creating stagnant, extreme-humidity air pockets inside the unit.
Clean the filter and ensure the unit has clear space around all sides.
Contact Hisense service for sensor replacement

If E2 persists after a reset and drying period, the internal humidity sensor (hygrometer) has permanently failed.
Contact Hisense customer support for a warranty repair or a replacement sensor.

Frequently Asked Questions

Hisense dehumidifier E2 — can I still use it to collect water?

With E2 active the unit cannot properly regulate humidity.
It may still run but without reliable sensor data it will not dehumidify effectively.
Have the sensor repaired before continued use.

Hisense dehumidifier E2 and E4 at the same time — what does that mean?

Multiple errors appearing together usually indicate moisture damage to the control board rather than individual sensor failures.
The entire control board may need replacing — contact Hisense service.

Hisense dehumidifier purchased on Amazon showing E2 — is it covered under warranty?

Yes, Hisense offers a 1-year limited warranty on their dehumidifiers.
Contact Hisense support with your purchase order number.
Units purchased through Amazon may qualify for Amazon return as well.