AC unit bypass

[domix]

Hello,
i have Lg AC indoor unit connected to heatpump warm water. To flow thru unit. I have it to heating up garage. I have previus old indoor ac unit. It was only connected to power supply and is was woking.

Now i have new one which has a problem, it needs outdoor unit. It has error, 5 blinks which means that outdoor unit is not connected.

how can i bypass this :/

I need only to turn on and i need only fan to blow, and adjust speed od fan. To blow over a warm pipes.

[lotas]

This indoor unit won't work without the original outdoor unit, and you can't fool it, since it has a CPU built into the firmware, and the outdoor unit also has a board with a CPU. They communicate between the units via two wires, 2 "N" and 3 "C." When turned on, a self-test is performed, and if the indoor unit doesn't detect the outdoor unit, it displays an error and the unit is blocked.
The old indoor unit does not need an outdoor unit, since they do not exchange data; the compressor, fan, and four-way valve are simply switched on via a relay to switch the heat.