Why does my air conditioner not start immediately after I turn it back on?
If the indoor unit is stopped and then immediately restarted, the compressor will not operate for about 3 minutes to prevent fuse blowouts. Additionally, whenever the electrical breaker is turned off and then on again, the protection circuit will operate for about 3 minutes, preventing unit operation during that period. (Page 15)
From the official Fujitsu Inverter Halcyon manual, page 15
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