How to Put Panasonic Air Conditioners and Computers into Test Mode: A Comprehensive Guide


Putting a Panasonic air conditioner or computer into test mode is a crucial step for troubleshooting and maintenance. This comprehensive guide will walk you through the step-by-step process for the Panasonic A5 series, Panasonic CZ-RTC5A, and Panasonic computers, providing detailed technical information and expert-level insights to ensure a successful test mode activation.

Panasonic A5 Series Air Conditioner Test Mode

how to put Panasonic into test modeImage source: Panasonic Ac by RuinDig

To put a Panasonic A5 series air conditioner into test mode, follow these detailed steps:

  1. Turn off the power: Ensure that the power to both the indoor and outdoor units is turned off.
  2. Locate the control board: Identify the control board on the outdoor unit, which is typically located behind a panel or cover.
  3. Find the test mode jumper: Locate the test mode jumper, which is usually a two-pin connector on the control board.
  4. Short the test mode jumper: Using a metal object, such as a screwdriver, carefully short the two pins of the test mode jumper to activate the test mode.
  5. Power on the units: Turn on the power to both the indoor and outdoor units.
  6. Verify test mode activation: The unit should now be in test mode, ready for further diagnostics and troubleshooting.

Panasonic CZ-RTC5A Air Conditioner Test Mode

To put a Panasonic CZ-RTC5A air conditioner into test mode, follow these detailed steps:

  1. Power on the unit: Ensure that the power to the CZ-RTC5A unit is turned on.
  2. Access the menu: Press the “Menu” button on the remote control to access the main menu.
  3. Navigate to test operation: Use the arrow buttons on the remote to navigate to the “Test Operation” option.
  4. Select test operation: Press the “Enter” button to select the “Test Operation” option.
  5. Activate test mode: Select “ON” for the operation mode to start the test operation.
  6. Perform test operation: Carry out the necessary tests and diagnostics while the unit is in test mode.
  7. Exit test mode: Once the test operation is complete, press the “Menu” button to exit the test mode.

Panasonic Heating Mode Units: Automatic Address Setting

For Panasonic heating mode units, you can perform automatic address setting by shorting specific points on the outdoor main unit control PCB. This process involves:

  1. Open service valves: Ensure that the gas and liquid tube service valves are open.
  2. Power on the system: Verify that the power mains switch is turned on for at least 5 hours.
  3. Check indoor unit operation: Confirm that all indoor units are operating in all refrigerant systems where the power is ON.

Panasonic Computer Hardware Diagnostics

For hardware diagnostics on Panasonic computers, you can use the PC-Diagnostic Utility to determine if there is a problem with the hardware. Follow these steps:

  1. Access the PC-Diagnostic Utility: Locate and launch the PC-Diagnostic Utility on your Panasonic computer.
  2. Run the diagnostic tests: Allow the utility to perform the necessary hardware diagnostics.
  3. Interpret the results: If the utility discovers a problem, contact Panasonic Technical Support for further assistance and guidance.


By following the detailed steps and technical information provided in this guide, you can successfully put your Panasonic air conditioners and computers into test mode, enabling you to perform thorough diagnostics, troubleshooting, and maintenance. Remember to always refer to the manufacturer’s instructions and safety guidelines when working with Panasonic equipment, and don’t hesitate to reach out to Panasonic Technical Support if you encounter any issues or require further assistance.