Mitsubishi Electric · MSZ-FH Air Conditioners
After the system turns OFF, the compressor will not restart for approximately 3 minutes. This is a built-in safety feature designed to protect the compressor from potential damage due to overload or rapid restarts. This is normal operation.
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Understand that this is a normal protective function of the air conditioner.
Wait for at least 3 minutes after the system turns off before attempting to restart it.
Avoid repeatedly pressing the ON/OFF button during this protective delay period.