How to Reset Your DELLA Air Conditioner: A Comprehensive Guide


Resetting your DELLA air conditioner can be a straightforward process, but it’s essential to follow the right steps to ensure the successful restoration of your unit’s factory default settings. This comprehensive guide will walk you through the necessary steps, from power resetting to restoring the factory default settings, providing you with the technical expertise and hands-on guidance to get your DELLA air conditioner back in optimal working condition.

Power Reset for Ducted or Split Systems

how to reset my DELLA air conditioner

  1. Locate the Isolator Switch: Begin by identifying the isolator switch located next to the outdoor unit of your ducted or split system DELLA air conditioner.
  2. Turn Off the Isolator Switch: Firmly turn the isolator switch to the “Off” position and wait for a few seconds.
  3. Turn On the Isolator Switch: After the brief pause, turn the isolator switch back to the “On” position.
  4. This power reset process will help to reset the electronics within your DELLA air conditioner, potentially resolving any issues caused by a power surge or fluctuation.
  5. If your DELLA air conditioner unit does not have an isolator switch, you can perform the power reset by turning off the circuit breaker in your home’s power board that supplies electricity to the outdoor unit. Wait a few seconds, then turn the circuit breaker back on.

Test and Reset Button for Portable DELLA Air Conditioners

  1. Locate the Test Button: Identify the “Test” button on your portable DELLA air conditioner, typically located on the unit or the power cord.
  2. Press the Test Button: Firmly press and hold the “Test” button for a few seconds.
  3. Observe the Reset Button: After pressing the “Test” button, the “Reset” button should pop up, indicating that the circuit breaker has been triggered.
  4. Press the Reset Button: Gently press the “Reset” button to ensure that the circuit breaker is properly engaged.
  5. This process helps to reset the internal circuit breaker of your portable DELLA air conditioner, addressing any potential electrical issues that may have caused the unit to malfunction.

Restoring Factory Default Settings

  1. Turn Off the Power: Using the remote control, turn off the power to your DELLA air conditioner.
  2. Disconnect the Outdoor Unit: Locate the circuit breaker that supplies power to the outdoor unit of your DELLA air conditioner and turn it off.
  3. Wait for Two Minutes: Allow the system to remain completely powered off for at least two minutes.
  4. Restore Power to the Outdoor Unit: Turn the circuit breaker that supplies power to the outdoor unit back on.
  5. Turn On the System: Using the remote control, turn the DELLA air conditioner system back on.
  6. This process of completely powering off the system for a minimum of two minutes will reset the DELLA air conditioner to its factory default settings.
  7. It’s important to note that the system may take three or more minutes to begin operating again after the power has been restored.

Troubleshooting and Service Assistance

If the steps outlined above do not resolve the issue with your DELLA air conditioner, it’s recommended to contact your service agent and log a service call. The trained technicians can further diagnose the problem and provide a tailored solution to get your unit back in optimal working condition.


  1. How to Reset Your Air Conditioner Unit | Easy! – YouTube
  2. DELLA 14000 BTU Portable Air Conditioner User Manual
  3. My DELLA 13000 BTU(ASHRAE)/8000 BTU(SACC)… – JustAnswer HVAC