Mitsubishi Air Conditioner Error EE
⚡ Quick Answer: The Mitsubishi Air Conditioner error code EE indicates a communication failure between the indoor and outdoor temperature sensors. This issue often le... ⚠️ Difficulty Varies
What Does Error EE Mean?
The Mitsubishi Air Conditioner error code EE indicates a communication failure between the indoor and outdoor temperature sensors. This issue often leads to erratic display behavior, system shutdowns, and the unit's inability to cool effectively. Common causes include a mismatch in the indoor-outdoor unit combination or communication faults due to wiring issues. Addressing these problems may require checking configurations or wiring connections to restore normal operation.
Common Symptoms:
- System shutdown or stopped operation when EE appears
- EE displayed on indoor unit or remote
- Failure to respond to remote inputs
Possible Causes
- Indoor‑outdoor unit combination mismatch (improper configuration or SW5 settings) (medium)
- Communication fault between indoor and outdoor units wiring or interface (medium)
How to Fix Error EE
DIY Fix Check basic pairing and power cycle
- Turn off the air conditioner at the main power switch or breaker.
- Wait 1–2 minutes and restore power.
- Check if the code clears and the unit resumes operation.
- Verify that the model combination (indoor/outdoor) matches the installation documentation.
Technician Only Inspect configuration and communication wiring
- Verify correct indoor and outdoor unit combination based on model and refrigerant compatibility.
- Check and measure continuity of communication wiring between indoor and outdoor units.
- Inspect SW5 and configuration settings on indoor unit control board per service manual.
- Test communication interface boards for faults and replace if necessary.
Parts needed: Communication wiring harness, Indoor unit control board, Outdoor unit interface board
- If EE reappears after power cycle
- If you are not experienced with electrical wiring and service procedures
- If mismatch configuration is suspected but cannot be verified
Next step
Choose the next step for EE
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
- Typical part-only price
- $20 - $120
- DIY difficulty
- Medium
- Estimated time
- 30-90 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
HVAC Control Board
Controls fan, compressor, sensor, and communication functions in the HVAC unit.
Model-compatible Air Conditioner parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Air Conditioner Fin Cleaner
For routine cleaning of accessible coil fins when permitted by the manufacturer. Disconnect power and follow product and appliance instructions.
Model-Compatible Washable AC Filter
A reusable filter option only where the appliance supports one. Match the full model, dimensions, and filter specification.
Compatibility check required: use the complete appliance model and compare the existing filter, bag, or specification before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | N/A |
|---|---|
| component | Indoor/Outdoor Temperature Sensor |
| resistance | 10-15 kOhms |
| part_number | Mitsubishi 281A200A03 |
| voltage_rating | AC 220V |
Common Questions
What does EE error mean on Mitsubishi Air Conditioner?
EE error indicates a communication failure between the indoor and outdoor units, leading to system shutdown and erratic display.
Can I fix Mitsubishi Air Conditioner EE error myself?
Yes, you can try power cycling the unit and checking the basic pairing of the indoor and outdoor units.
How much does it cost to fix EE error?
Repair costs typically range from ¥10,000 to ¥60,000, depending on parts and labor required.
When should I call a technician for EE?
Call a technician if the EE error persists after a power cycle or if you're unsure about electrical wiring and configurations.
Sources & References
Data last verified: 2026-07-22
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