SOURCE: replace remote control unit model ar-fb2
If your remote control have display but cannot transmit signal to the unit. Confirm first if the remote is really the problem, using your camera or cellphone camera as your eyes point the remote transmitter to your camera and "on" the remote. You should see light emits in your remote control, if no emitted light then the remote control is defective. But if there is a light the defect is in the unit receiver.
Check also if there is a reset or rst button in your remote control and reset it and try.
Check also if there are error codes in the unit, reset the unit by disconnecting the power supply in the unit for 10 sec. and "on" again and try.
The unit can be operate without remote control, use the manual button located in the unit.
If the remote control have no display replacement of remote is recommended.
SOURCE: fujitsu air conditioning remote control not
open the remote and carefully look at where the batteries make contact they sometimes bend in and dont make contact just pry them out a little and reinsert batteries and it often will work again
SOURCE: All the air conditioning units in my apartment
Need to buy an air conditon remote control unit model AR-DJ2
SOURCE: We have a Fujitsu split. remote ar-ry7 will turn
If you look at the remote you will find a small pin hole you will have to use a pin to reset the remote just put the pin in small and push and that resets
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