How to Fix Midea Dehumidifier EH Error
Complete DIY troubleshooting guide for humidity sensor malfunctions. Save on expensive service calls.
Quick Fix / Soft Reset
Try these steps first before disassembling the unit:
🔍 Common Causes of EH Error
Loose Wiring
Sensor harness disconnected or corroded connections
Faulty Sensor
Humidity sensor/thermistor has failed or is out of range
Tank Issue
Water tank not properly positioned or float stuck [[1]]
Board Failure
Control board cannot read sensor data properly
🔧 Step-by-Step Troubleshooting
EH60 specifically can indicate the water tank isn’t properly seated [[1]].
How to access: Unplug the dehumidifier. Remove the back panel screws. Use a flathead screwdriver to gently release the top housing clips and lift to expose the control board.
What to check: Locate the humidity sensor wiring harness. Disconnect and reconnect the sensor plug at the control board. Inspect for:
- Corroded or bent pins in the connector
- Frayed or pinched wires
- Loose connections at both ends
- Water damage or moisture on the board
Testing procedure: Disconnect the sensor from the control board. Set multimeter to Ohms (Ω). Touch probes to the sensor terminals.
Dust and debris can interfere with sensor readings.
If the sensor tests correctly, the problem may be on the board.
Visual inspection: Look for:
- Burnt or discolored components
- Bulging or leaking capacitors
- Corroded solder joints around sensor pins
- Cracked traces or physical damage
🛒 Parts Replacement Guide
If testing confirms the humidity sensor has failed, you’ll need to order a replacement part.
Order the Humidity Sensor Assembly or Humidity Sensor Harness specific to your Midea model number (check the label on your unit, e.g., MAD50PS1WWT, MAD35S1QWT). Search using your exact model number on:
- Midea official parts website
- Authorized service centers
- Appliance parts retailers (Repair Clinic, PartSelect)
If OEM parts are unavailable or expensive, you can use a generic 10kΩ or 15kΩ NTC thermistor with a compatible 2-pin connector. Available on Amazon, eBay, or AliExpress for $10-20. Verify:
- Resistance value matches original (10kΩ or 15kΩ)
- Connector type matches (usually JST connector)
- Probe length is similar to original
🛡️ Prevention Tips
- Clean the air filter monthly to ensure proper airflow
- Empty the water tank before it reaches maximum level
- Keep the unit in a location with stable temperature (avoid garages or unheated spaces)
- Vacuum around the air intake regularly to prevent dust buildup on the sensor
- Run the dehumidifier at least once a month during off-season to keep components active
Repair vs Replace Decision
Consider the cost-effectiveness before proceeding with repairs.
- Simple sensor replacement ($15-40 part cost)
- Loose wiring connection (free fix)
- Unit is under warranty (contact Midea support)
- Dehumidifier is less than 3 years old
- Control board replacement needed ($80-150)
- Unit is over 5 years old
- You notice refrigerant leaks (oily residue on coils)
- Compressor makes loud grinding noises
- Multiple error codes appear simultaneously
🚨 When to Call Professional Help
Contact Midea Customer Service or a certified HVAC technician if:
- The EH error persists after sensor replacement
- You see visible damage to the control board
- The unit is still under warranty (DIY repairs may void warranty)
- You’re uncomfortable working with electrical components
- The dehumidifier shows other symptoms like not cooling or unusual noises
Midea Support: Check your user manual or visit the Midea website for authorized service centers [[2]][[5]].
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