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Answers from the experts

Frequently Asked Questions

These are the most frequently asked questions about air conditioning, ventilation, heating and other systems. Feel free to contact us if you don't see your answer below.

  • General questions
  • Engineering questions

The air conditioner is not working normally

Lightning and radio waves can sometimes cause abnormal operation of air conditioners.
Disconnect the power by unplugging the power cord or turning off the circuit breaker, then restore the power and restart the air conditioner.

How do I change the date and time in my unit?

A. Daikin Altherma 3rd generation units (MMI - built-in user interface)
  -Use the left wheel to navigate to "User settings"

  -Click on the left wheel to enter the menu

  -Browse to "Time/Date"

  -Click on the left wheel to enter the menu

  -Use the right wheel to adjust the fields

B. Daikin Altherma 1st/2nd generation units (room thermostat - external user interface)

  -Use the thermostat Click on the radio button (bottom-right)

  -Go to "Set time/date"

  -Click on "OK"

  -Set the current date and time

Enable/disable the LEDs on the network gateway

The network gateway LEDs are not turned on or off just like that.

The text looks too big on the screen. What should I do?

Make sure the font size of your mobile device is set to "Normal".
"Settings" → "Accessibility" → "Font size" → "Font size

During a network gateway software update, an error code appeared. What should I do?

During firmware updates, the network gateway stops communicating with the user interface. This results in an error code being displayed on the user interface. When the network gateway is fully upgraded, communication will be restarted and the error will disappear from the user interface.

BRP069A6x:
A temporary display of the error code "U8-01" is expected in the user interface.

DRGATEWAYAA:
A temporary display of error code "U4-66" is expected in the user interface.

I lost my Daikin ID password, how can I recover my password?

If you have forgotten your Daikin ID password, click the "Forgot password" link on the login screen
On the next screen, enter your email address to receive a message containing a link to reset your password. Follow the link in the message to select a new password.

The fan of the indoor unit continues to run after the heating program has stopped.

In order to reduce the temperature of the heater, the fan runs for 60 to 100 seconds after the air conditioner stops running.

The outdoor unit is emitting water or steam

The defrost function activated during the heating programme removes the ice, which is converted into water or steam. A small amount of water is also evacuated during the heating programme.

The defrost function activated during the heating programme removes the ice, which is converted into water or steam. A small amount of water is also evacuated during the heating programme.

The plastic parts of the air conditioner, such as the grille, make a squeaking sound as they expand or contract slightly due to the change in temperature.

The air conditioner does not start working as soon as it is switched on

To reduce excessive load during restart, the air conditioner does not operate for three minutes when the start (ON) switch is pressed immediately after the unit is turned off or when the operating program (setting) is changed by the remote control.

You can hear the sound of water flowing from the air conditioner

This water flow sound is produced by the refrigerant circulating inside the air conditioner.
This sound is most likely to be generated when the defrost function is activated during the heating program.

The airflow suddenly becomes stronger during a heating program

When the airflow is set to LOW, the amount of airflow increases when the overload control is activated. ("Overload" is the condition in which the air conditioner operates under an excessive load. Overload can be caused by unclean filters.)

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