Hitachi RAC E14H2 Errore LD 301 10 times.

[anesti]

Hello friends.
The air conditioner has not been used for several years and as such the compressor parts may be stuck. The external device shows error code 10 times. I have changed the connection cable of the internal unit and the outside unit. The 45 mf/200 vot capacitor is OK. How to start without pcb control? Thanks

[anesti]

After checking with the lens I saw that the logic PCB and the load circuit PWB were corroded by the salty coastal air. I tried to repair part of the printed circuit, I also made a bridge in the compressor load relay RL1 G4A, and the device started working, but in heat mode. It seems that in conditions without power, the reverse valve works in a heat process. Under these conditions, I installed a 220 volt solenoid coil and the system returned to cooling.I may already have a problem with the defrost process. If I need to completely replace the electronic Power PWB and Main PWB package of the external device. Can I to buy them here on the forum?