FAQ: Split Systems What should I do when the indicator lamps on the indoor unit blink?
If your air conditioner doesn't work, ask for technical assistance.
Count the blinks of each indicator lamp and contact Fujitsu General's customer service or your local service agent.
What to check
Confirm the following three points when checking the indicator lamps.
Types of indicator lamps
The names and colors of indicator lamps on an air conditioner vary from model to model. Check the indicator lamps on the unit or the operation manual to find their names.
- The drawing shows an ASMG09CGTA model.
Different blinking speed correspond to different errors. Check the blinking speed of the indicator lamps.
Count the blinks of the operation indicator lamp and the timer indicator lamp.
*The video shows how an indicator blinks on model ASTG24KMCA.
These are not indications of a failure
The indicator lamps may blink even when no failure occurs.
The operation and timer indicator lamps blink alternately
This happens when the power supply to an air conditioner is interrupted during operation, such as due to a power outage.
The operation and timer indicator lamps blink simultaneously
This happens during a test run. Press the START/STOP button on the remote controller to stop operation, and hit the button again to resume operation.
You can get a diagnosis of your air conditioner based on its model name and the blinking patterns of its indicator lamps (or an alphanumeric code shown on the unit).
You can guess an error symptom based on the manufacturing year of your air conditioner and the blinking patterns of its indicator lamps.
When you need to request check or repair
After checking the blinking patterns of the indicator lamps, shut down the unit and unplug the power cord from the wall outlet. Call your retailer or our call center for assistance. When you call, provide the model name of your air conditioner as well as the blinking patterns of the indicator lamps or the alphanumeric code shown on the unit*.
- Applicable only to air conditioners equipped with a status display on an indoor unit that shows temperature and power usage