5 🟡 Repair Required
Mitsubishi Error Code 5: Outdoor Thermistor Open/Short
⚠️ Your Mitsubishi HVAC system has detected an issue with the outdoor thermistor and has shut down to prevent damage.
How to Fix Mitsubishi Code 5
- Check for any visible damage to the outdoor unit and the wiring
- If the issue persists, contact a professional HVAC technician for a thorough diagnosis and repair
What Does Mitsubishi Error Code 5 Mean?
The Mitsubishi 5 error, also known as an 'Outdoor Thermistor Open/Short', indicates that your system has detected an issue with the outdoor thermistor. This component is responsible for measuring the temperature outside your home and communicating this information to your HVAC system. If the system detects that the thermistor is not functioning properly, it will shut down to prevent further damage. This error is typically caused by a faulty thermistor, but it could also be due to a problem with the wiring or the control board.
Common Causes of Mitsubishi Code 5
- Faulty outdoor thermistor
- Damaged wiring to the thermistor
- Issues with the control board
Applicable Mitsubishi Models
Need a Pro to Fix Mitsubishi Code 5?
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Find a Licensed Tech Near You →Replacement Parts for Mitsubishi Mini-Split Code 5
Outdoor Thermistor OEM: 530-243-001