Get the model number of your mini split unit (on tag on indoor unit and outdoor unit) Google hitachi error codes. You should be able to pull up a code list for that unit. I believe it may be a communication problem between the indoor and outdoor unit. Possible bad connection of wire going from outdoor to indoor unit
SOURCE: laptop won't turn on
I am facing a similar problem with 5160 and my power button will not power up the laptop. I presses the shift key, it got powered up (offcourse only fan started but the screen is black)
Try pressing shift key to power up.
SOURCE: red blinking and ac not working
If the power "flickers" and unit fails but will restart once the breaker is reset, this sounds absolutley normal. It is a safety device that keeps the unit from burning up things due to improper power being supplied. As long as resetting puts it back into service with no issues, don't worry about it.
SOURCE: my carrier split type non-inverter aircon always blinking
I got the same problem in Samsung aircon. The unit I purchsed died slowly. After that Samsung replaced it with the one have the same problem. They are swearing that the green light blinking problem as a normal function and refusing to fix. Their user manual says it is a problem. I think the affected consumers should join hands to take legal action against this scam.
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