Why heating operation CANNOT be selected on my Daikin FTXA25A2V1BW?
- DDonna FergusonSep 23, 2025
If you cannot select heating operation, check if the user interface's jumper J8 has not been cut.

Why heating operation CANNOT be selected on my Daikin FTXA25A2V1BW?
If you cannot select heating operation, check if the user interface's jumper J8 has not been cut.
Why does my Daikin FTXA25A2V1BW system suddenly stop operating?
Your Daikin Air Conditioner might stop operating due to sudden large voltage fluctuations to protect the system. It will automatically resume operation after about 3 minutes.
What to do if my Daikin FTXA25A2V1BW Air Conditioner operates, but cooling or heating is insufficient?
If your Daikin Air Conditioner isn't cooling or heating sufficiently, consider the following: * Check the airflow rate and temperature settings. * Ensure the airflow direction is appropriate. * Make sure the air inlet or outlet of both the outdoor and indoor units isn't blocked; remove any obstructions. * Clean the air filters if they are clogged. * Close any open doors or windows to prevent drafts. * Check if the unit is operating in Econo or Outdoor unit quiet operation mode. * Move any furniture that might be directly under or next to the indoor unit.
What to do if my Daikin FTXA25A2V1BW ON/OFF timer does NOT operate according to the settings?
If the ON/OFF timer on your Daikin Air Conditioner isn't working as expected: * Check if the Weekly timer and ON/OFF timer are set to the same time; if so, change or deactivate one of the settings. * Verify that the clock and day of the week are set correctly.
What to do if my Daikin FTXA25A2V1BW is operating, but cooling or heating is insufficient?
If your Daikin Air Conditioner isn't cooling or heating sufficiently, consider the following checks: * Make sure that the airflow rate and temperature are set properly. * Check if the airflow direction is appropriate. * Ensure that neither the air inlet nor the outlet of the outdoor or indoor unit is blocked by obstacles. Remove any obstructions to allow free airflow. * Clean the air filters if they are clogged. * Close any open doors or windows to prevent drafts. * Check if the unit is operating in Econo or Outdoor unit quiet operation mode. * Move any furniture that might be directly under or next to the indoor unit.
What to do if my Daikin FTXA25A2V1BW user interface signals operate other electric appliances?
If the user interface signals from your Daikin Air Conditioner are operating other electric appliances, move the other appliances away and contact your dealer.
What to do if my Daikin FTXA25A2V1BW unit does NOT receive signals from the user interface?
If your Daikin Air Conditioner unit isn't responding to the user interface: * Check the batteries in the user interface. * Ensure the transmitter isn't exposed to direct sunlight. * Check if there are any electronic starter type fluorescent lamps in the room.
What to do if my Daikin FTXA25A2V1BW Air Conditioner front panel does NOT open?
Check for any obstructions and try to open the front panel using the user interface.
What to do if my Daikin FTXA25A2V1BW Air Conditioner user interface display is blank?
If the user interface display of your Daikin Air Conditioner is blank, replace the batteries in the user interface.
Why does my Daikin FTXA25A2V1BW ON/OFF timer does NOT operate according to the settings?
If the ON/OFF timer isn't working as expected, check if the Weekly timer and ON/OFF timer are set to the same time. If they are, change or deactivate one of the settings. Also, verify that the clock and day of the week are set correctly.
| Brand | Daikin |
|---|---|
| Model | FTXA25A2V1BW |
| Category | Air Conditioner |
| Language | English |
Defines all hazard symbols (Danger, Warning, Caution, Notice, Information) used within the document.
Provides essential safety advice and warnings for end-users of the air conditioner.
How to select operational modes and set the desired temperature.
Features for enhanced comfort and energy saving via sensor detection.
Explains Powerful, Econo, and Outdoor Unit Quiet modes for performance and efficiency.
Details Flash Streamer air cleaning and OFF/ON/Weekly timer settings.
Provides tips and precautions for efficient operation and energy conservation.
Lists typical problems and their corresponding solutions and troubleshooting steps.
How to interpret and address error codes displayed by the unit.
Solutions for connectivity issues and problems with the wireless adapter.












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