Panasonic Air Conditioner Error F31
⚡ Quick Answer: The Panasonic Air Conditioner F31 error indicates a communication failure between the indoor and outdoor units, primarily caused by an abnormality in ... ✅ DIY Fixable
What Does Error F31 Mean?
The Panasonic Air Conditioner F31 error indicates a communication failure between the indoor and outdoor units, primarily caused by an abnormality in the EEPROM (non-volatile memory) of the outdoor unit. This error prevents the air conditioner from operating normally, often requiring a power reset that may not resolve the issue. If the error persists, further diagnosis and repairs are needed to address the EEPROM fault.
Common Symptoms:
- Air conditioner stops operation and displays F31 error
- Outdoor unit fails to proceed with normal operation
- Reset by power cycling may be attempted but error persists
Possible Causes
- EEPROM abnormality in outdoor unit (high)
How to Fix Error F31
DIY Fix Power reset the air conditioner
- Turn off the air conditioner completely.
- Switch off the breaker or disconnect power for at least 1–2 minutes.
- Restore power and turn the unit back on to see if the error clears.
Technician Only Diagnose and repair EEPROM fault in outdoor unit
- Connect diagnostic equipment to the outdoor unit according to service manual.
- Check the EEPROM module on the outdoor unit control board.
- Replace the EEPROM chip or outdoor unit PCB if confirmed faulty.
- Test the unit to verify normal operation after repair.
Parts needed: Outdoor unit EEPROM / control board
- If F31 persists after power reset
- If there are unusual noises, smells, or no display on the unit
- If the outdoor unit fails to start or communicate with indoor unit
Technical Specifications
| wattage | 2000W |
|---|---|
| component | Control Board |
| resistance | 5-15 ohms |
| part_number | PZ-1A |
| voltage_rating | 230V AC |
Common Questions
What does F31 error mean on Panasonic Air Conditioner?
The F31 error signifies a communication failure between the indoor and outdoor units due to an EEPROM abnormality.
Can I fix Panasonic Air Conditioner F31 error myself?
Yes, you can attempt to power reset the unit by turning it off and disconnecting power for 1-2 minutes.
How much does it cost to fix F31 error?
Repair costs for the F31 error range from ¥20,000 to ¥80,000, depending on model and region.
When should I call a technician for F31?
Call a technician if the F31 error continues after a power reset or if you notice unusual noises or smells.
Sources & References
- Panasonic HVAC Error Code Search – F31 (official)
- F31 Panasonic Air Conditioner Repair Info (community)
Data last verified: 2026-07-07
User Comments (0)
Share your experience or solution below.
Please login to post a comment.
Be the first to comment!