Fujitsu · Air Conditioners
If the power supply has suddenly turned off and then on again, the compressor will not operate for approximately 3 minutes. This is a built-in protection mechanism to prevent a fuse blowout.
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This is a normal protective measure by the air conditioner system.
Wait approximately 3 minutes for the compressor protection delay to pass.
The unit should then resume normal operation automatically once the delay concludes.