Gree Low Humidity Sensor Reading or Sensor Open

Dehumidifier displays H2 and may shut down or fail to start.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Humidity sensor open circuit, Broken sensor leads, Loose connector at PCB, Failed humidity sensing element

Safety: Disconnect power before servicing.

Steps:

Connector check: Reseat the humidity sensor connector on the main PCB.
Continuity test: Use a multimeter to check continuity across the sensor leads. An open circuit indicates a failed sensor or broken wire.
Harness inspection: Look for breaks or cuts in the sensor cable. Replace the humidity sensor harness if damaged.
Sensor replacement: Install a new humidity sensor module if the original is open or out of spec.

Medium 3/5

Humidity Sensor Module

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