Panasonic Air Conditioner Error F23

⚡ Quick Answer: The Panasonic Air Conditioner error F23 indicates an abnormality in the outdoor heat exchanger's gas inlet temperature sensor. This error typically le... ✅ DIY Fixable

What Does Error F23 Mean?

The Panasonic Air Conditioner error F23 indicates an abnormality in the outdoor heat exchanger's gas inlet temperature sensor. This error typically leads to the unit ceasing operation, displaying the F23 code on the remote or panel, and may be accompanied by unusual noises or insufficient airflow. If the sensor wiring or unit itself is faulty, it can further exacerbate cooling or heating performance issues.

Common Symptoms:

  • Unit stops operation and displays F23 on remote or panel
  • Potential incorrect outdoor temperature readings
  • Possible cooling/heating performance issues

Possible Causes

  • Outdoor heat exchanger 2 gas (inlet) temperature sensor abnormality (high)
  • Sensor wiring connection fault (medium)
  • Sensor unit itself failure (medium)

How to Fix Error F23

DIY Fix Basic checks and safe restart

  1. Turn off the air conditioner fully using remote and mains breaker.
  2. Wait 5–10 minutes then restore power to see if error clears (temporary glitch reset).
  3. Ensure nothing obstructs the outdoor unit (clear debris, ensure airflow).

Technician Only Sensor inspection and repair

  1. Disconnect power and inspect outdoor unit sensor wiring and connectors for damage or disconnection.
  2. Measure temperature sensor resistance/voltage as per service manual diagnostics.
  3. Replace faulty 2‑gas inlet temperature sensor if abnormal.
  4. Check outdoor control board if sensor replacement doesn’t resolve error.

Parts needed: Outdoor heat exchanger gas inlet temperature sensor, Wiring harness, Possible outdoor unit control board

🛑 When to Call a Pro:
  • If error persists after basic reset
  • If outdoor unit wiring or components show signs of damage
  • If abnormal sounds, smells, or performance issues occur with operation

Next step

Choose the next step for F23

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Temperature Sensor

Monitors the internal temperature to ensure correct operation and prevent overheating.

Typical part-only price
$15 - $35
DIY difficulty
Easy
Estimated time
15-30 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.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Other components that may be involved

Check these only if your diagnosis points to them.

Possible related component

HVAC Control Board

Controls fan, compressor, sensor, and communication functions in the HVAC unit.

$90 - $320 · Hard · 45-120 mins

Check fit & price

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Technical Specifications

wattage 75W
component Indoor Fan Motor
resistance 5-15 ohms
part_number PANA-123456
voltage_rating 230V AC

Common Questions

What does F23 error mean on Panasonic Air Conditioner?

F23 indicates a failure in the outdoor heat exchanger's gas inlet temperature sensor, causing the unit to stop working.

Can I fix Panasonic Air Conditioner F23 error myself?

Yes, you can try a basic reset by turning off the unit and checking for obstructions around the outdoor unit.

How much does it cost to fix F23 error?

Repair costs for the F23 error range from ¥15,000 to ¥50,000+ depending on parts and labor.

When should I call a technician for F23?

Call a technician if the error persists after a reset, or if you notice damage to wiring or components.

Sources & References

Data last verified: 2026-07-22

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