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EH

Frigidaire Dehumidifier

Severity:

Source: OnlyErrorCodes.com — Every error code. One place.

Frigidaire Dehumidifier EH Error — How to Fix

What Does This Error Mean?

Frigidaire Dehumidifier EH error indicates that the internal humidity sensor has failed or is reading outside its valid range. Without a valid humidity reading, the dehumidifier cannot regulate itself and shuts down. A power reset clears temporary glitches — a persistently faulty humidity sensor requires professional replacement.

Affected Models

  • Frigidaire FFAD5033W1
  • Frigidaire FFAD7033W1
  • Frigidaire FAD954DWD
  • Frigidaire FGAC7044U1
  • Frigidaire FFAP7033T1

Common Causes

  • The humidity sensor has developed an open or short circuit internally from age or moisture exposure
  • The sensor wiring connector has come loose from the control board
  • Extremely high humidity (above the sensor's measurement range) in the room is triggering an out-of-range fault
  • A power surge has damaged the sensor or its input circuit on the control board

How to Fix It

  1. Unplug the unit for 10 minutes and attempt a full power reset

    Disconnect the dehumidifier from power completely. Wait 10 minutes for a full board reset. Plug back in and power on. A temporary EH error caused by a sensor read glitch or transient fault will clear after a proper reset.

  2. Move the unit away from extreme moisture sources

    If the dehumidifier is positioned very close to a water leak, sump pump discharge, or other extreme moisture source, the sensor may be overwhelmed. Move the unit 1–2 metres away and allow it to stabilise for 30 minutes before restarting.

  3. Check that the room temperature is within the operating range

    Frigidaire dehumidifiers operate between 41°F–90°F (5°C–32°C). At the lower end of this range, the humidity sensor may report anomalous values. Ensure the room is above 50°F before running the dehumidifier.

  4. Check the warranty — humidity sensor failure is typically covered

    The humidity sensor is an internal part covered under Frigidaire's standard warranty (1-year parts and labour). If EH persists after a power reset, contact Frigidaire support at 1-800-374-4432 to arrange a warranty inspection or replacement unit.

  5. Replace the humidity sensor if out of warranty

    The humidity sensor is a small component on a wiring harness connected to the control board. Replacement sensors specific to your Frigidaire model number are available from appliance parts suppliers. This repair requires removing the outer casing and is best performed by an appliance technician.

Frequently Asked Questions

Can the Frigidaire EH error appear in very high humidity conditions?

Yes — if the room humidity is extremely high (above 90–95% RH) or the sensor is directly exposed to condensation, it can momentarily read out of range and trigger EH. Moving the unit to a position with better air circulation and allowing the space to partially dry before restarting often resolves these cases.

Is EH the same as EC on a Frigidaire dehumidifier?

No. EH specifically points to the humidity sensor circuit, while EC indicates a general electrical or wiring fault. EH gives a more specific diagnosis, making the humidity sensor the first component to replace if the error persists. EC has a wider range of possible causes.