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Panasonic Error Codes & Troubleshooting

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Panasonic Error Codes & Troubleshooting

Panasonic air conditioners offer reliable performance with nanoe-X technology for air purification.

43 Error Codes Listed3 Critical Issues

Error Code: F10

Communication error

MEDIUM
Troubleshooting Steps:

Communication fault between indoor and outdoor units. Check wiring connections.

Call for Help

Error Code: F11

Outdoor temperature sensor

LOW
Troubleshooting Steps:

Outdoor ambient temperature sensor error. Check sensor and connections.

Call for Help

Error Code: F12

Indoor temperature sensor

MEDIUM
Troubleshooting Steps:

Indoor temperature sensor malfunction. Affects temperature control.

Call for Help

Error Code: F13

Outdoor coil sensor

MEDIUM
Troubleshooting Steps:

Outdoor heat exchanger temperature sensor fault.

Call for Help

Error Code: F14

Indoor coil sensor

MEDIUM
Troubleshooting Steps:

Indoor heat exchanger temperature sensor error.

Call for Help

Error Code: F15

Compressor temperature sensor

MEDIUM
Troubleshooting Steps:

Compressor temperature sensor malfunction. Check sensor operation.

Call for Help

Error Code: F16

Discharge pipe temperature sensor

MEDIUM
Troubleshooting Steps:

Discharge pipe temperature sensor error. Check sensor and wiring.

Call for Help

Error Code: F17

Suction pipe temperature sensor

MEDIUM
Troubleshooting Steps:

Suction pipe temperature sensor fault. Professional diagnosis required.

Call for Help

Error Code: F18

Heat exchanger mid-point sensor

MEDIUM
Troubleshooting Steps:

Heat exchanger mid-point temperature sensor malfunction.

Call for Help

Error Code: F19

Liquid pipe temperature sensor

MEDIUM
Troubleshooting Steps:

Liquid pipe temperature sensor error. Check sensor connections.

Call for Help

Error Code: F20

High pressure protection

HIGH
Troubleshooting Steps:

High pressure switch activated. Check system pressures and airflow.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F21

Compressor protection

CRITICAL
Troubleshooting Steps:

Compressor thermal protection activated. System overheating detected.

Critical Issue: Turn off your system immediately and contact a professional technician.
Call for Help

Error Code: F22

Low pressure protection

HIGH
Troubleshooting Steps:

Low pressure protection activated. Check refrigerant levels.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F23

Compressor overcurrent

CRITICAL
Troubleshooting Steps:

Compressor overcurrent protection. Professional diagnosis required.

Critical Issue: Turn off your system immediately and contact a professional technician.
Call for Help

Error Code: F24

Fan motor error

HIGH
Troubleshooting Steps:

Fan motor malfunction detected. Check motor and connections.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F25

Power supply error

MEDIUM
Troubleshooting Steps:

Power supply voltage abnormality. Check electrical supply.

Call for Help

Error Code: F26

Inverter error

HIGH
Troubleshooting Steps:

Inverter circuit malfunction. Professional repair required.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F27

Drain pump error

MEDIUM
Troubleshooting Steps:

Drain pump malfunction. Check pump operation and drainage system.

Call for Help

Error Code: F28

Float switch activated

MEDIUM
Troubleshooting Steps:

Condensate overflow detected. Check drainage and float switch.

Call for Help

Error Code: F29

Indoor fan motor error

HIGH
Troubleshooting Steps:

Indoor fan motor malfunction. Check motor operation and obstructions.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F30

Outdoor fan motor error

HIGH
Troubleshooting Steps:

Outdoor fan motor fault. Check motor and remove any obstructions.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F31

Current transformer error

MEDIUM
Troubleshooting Steps:

Current sensing circuit malfunction. Professional diagnosis needed.

Call for Help

Error Code: F32

Phase detection error

MEDIUM
Troubleshooting Steps:

Power supply phase error detected. Check electrical connections.

Call for Help

Error Code: F33

Freeze protection activated

MEDIUM
Troubleshooting Steps:

Indoor coil freeze protection. Check airflow, filters, and refrigerant.

Call for Help

Error Code: F34

EEV driver error

HIGH
Troubleshooting Steps:

Electronic expansion valve driver malfunction. Professional repair required.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F35

4-way valve error

HIGH
Troubleshooting Steps:

4-way valve malfunction in heat pump mode. Check valve operation.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F36

Defrost sensor error

MEDIUM
Troubleshooting Steps:

Defrost temperature sensor fault. Check sensor and defrost operation.

Call for Help

Error Code: F37

PCB temperature sensor

MEDIUM
Troubleshooting Steps:

Control board temperature sensor error. Check board cooling.

Call for Help

Error Code: F38

DC bus overvoltage

HIGH
Troubleshooting Steps:

DC bus overvoltage protection. Check power supply and inverter.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F39

DC bus undervoltage

HIGH
Troubleshooting Steps:

DC bus undervoltage protection. Check power supply stability.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F40

Compressor locked rotor

CRITICAL
Troubleshooting Steps:

Compressor motor locked. Immediate professional attention required.

Critical Issue: Turn off your system immediately and contact a professional technician.
Call for Help

Error Code: F41

Outdoor PCB error

HIGH
Troubleshooting Steps:

Outdoor unit control board malfunction. Professional replacement needed.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F42

Indoor PCB error

HIGH
Troubleshooting Steps:

Indoor unit control board fault. Professional replacement required.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F43

Remote controller error

LOW
Troubleshooting Steps:

Remote controller malfunction. Check batteries and replace if needed.

Call for Help

Error Code: F44

Filter sign reset

LOW
Troubleshooting Steps:

Filter cleaning reminder. Clean filter and reset indicator.

Call for Help

Error Code: F45

System address error

MEDIUM
Troubleshooting Steps:

Unit address setting error. Check DIP switch configuration.

Call for Help

Error Code: F46

Oil return operation

LOW
Troubleshooting Steps:

Oil return cycle in progress. Normal operation for multi-unit systems.

Call for Help

Error Code: F47

Refrigerant shortage detection

HIGH
Troubleshooting Steps:

Low refrigerant detected. Check for leaks and recharge system.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F48

Inverter overload

HIGH
Troubleshooting Steps:

Inverter overload protection activated. Check electrical load.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F49

Heat sink overheat

HIGH
Troubleshooting Steps:

Heat sink temperature too high. Check cooling and ventilation.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: F50

Outdoor unit capacity mismatch

MEDIUM
Troubleshooting Steps:

Outdoor unit capacity does not match indoor units. Check system configuration.

Call for Help

Error Code: F51

nanoe-X device error

LOW
Troubleshooting Steps:

nanoe-X air purification device malfunction. Check device operation.

Call for Help

Error Code: F52

Humidity sensor error

LOW
Troubleshooting Steps:

Indoor humidity sensor malfunction. Check sensor and connections.

Call for Help

Still Having Issues with Your Panasonic System?

Our certified technicians are experts in Panasonic air conditioning systems. We provide professional diagnosis, repair, and maintenance services across Melbourne.

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Same-day service available
Genuine parts and warranty
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Call 0405 133 761

Available 24/7 for emergencies

Quick Actions

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Error Severity Guide

CRITICALTurn off system immediately
HIGHProfessional attention needed
MEDIUMSchedule service soon
LOWMonitor and maintain

Safety First

  • Always turn off power before inspection
  • Never attempt electrical repairs yourself
  • Check for gas leaks if you smell refrigerant
  • Call professionals for critical errors
  • Regular maintenance prevents problems