How to Reset Your Daikin Air Conditioner: A Comprehensive Guide

How to Reset Your Daikin Air Conditioner

Is your Daikin air conditioner giving you trouble? Before you consider complicated repairs, try resetting it. This step-by-step guide will walk you through various methods to reset your Daikin air conditioner and troubleshoot common issues.

Steps to Reset Your Daikin Air Conditioner:

Step 1: Perform a Hard Reset

  • Unplug the air conditioner or turn off the circuit breaker.
  • Wait for at least a minute, then turn the power back on.
  • Attempt to restart the unit to check if the issue is resolved.

Step 2: Reset After a Power Outage

Step 3: Resetting the Operation Lamp/Light (Flashing Green)

  1. Check for obstructions in the outside unit’s fan. Remove any objects hindering its rotation.
  2. Clean the dust box thoroughly and reset the cleaning lamp by holding the filter cleaning indicator (LED) reset button for about 2 seconds.

Step 4: Reset Daikin Error Codes (e.g., U4 Error)

  • Locate the on/off button on your Daikin remote control.
  • Hold the on/off button for 2 seconds, then release it to stop the operation.
  • Press the on/off button again to restart the unit and reset error codes.

Step 5: Reset Daikin Air Conditioner Remote

  • Find the “ON”/”OFF” button on the remote.
  • Hold the button for about 2 seconds.
  • Press the ON/OFF switch once to cancel the operation.
  • Press the ON/OFF switch again to resume the operation.

Step 6: Daikin AC Thermostat Reset

Refer to our detailed guide on resetting the Daikin AC thermostat for specific instructions.

If so, take a look at Daikin air conditioner fault codes, meaning, and recommended repairs guide-It is super detailed and could help you resolve that stubborn error code.


If resetting your Daikin air conditioner doesn’t solve the problem, consider seeking professional assistance from authorized repair services. For warranty-related concerns or further queries, reach out to Daikin directly. Troubleshooting your AC issues can be straightforward with these reset methods, ensuring your comfort in no time.

You can also reach out to Daikin Company directly here if you have some questions.

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frequently Asked Questions:

1. How can I reset my Daikin air conditioner?

  • Perform a hard reset by unplugging it or turning off the circuit breaker, waiting for a minute, and then restarting.
  • After a power outage, turn off the AC, flip the circuit breaker off, wait for 30 minutes, and then turn it back on.
  • For a flashing green light, check for obstructions in the fan and clean the dust box. Reset the cleaning lamp afterward.

2. What should I do if my Daikin AC shows error codes like U4?

  • Reset error codes by holding the on/off button on the remote for 2 seconds, releasing it, and pressing it again to restart the unit.

3. How do I reset my Daikin AC remote?

  • Hold the “ON”/”OFF” button for 2 seconds, press it once to cancel the operation, and press it again to resume operation.

4. Is there a way to reset my Daikin AC thermostat?

  • Refer to the specific guide provided to reset your Daikin AC thermostat for step-by-step instructions.

5. What if resetting doesn’t fix my Daikin AC issues?

  • If resetting doesn’t work, consider contacting authorized repair services. For warranty concerns or further assistance, reach out to Daikin directly.
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