Hello All !

I bought a used Sanyo Ecoi VRF systems with one outdoor unit and 12 indoor units fitted with 12 wired controllers.

Before to install everything i powered the indoor units to check them electrical .

5 of the indoor units did not power and red led is blinking inside on the board .

The models of the indoor units are SPW-KR94GXH56B (8 units ) and SPW-KR124GXH56B (4 units)

All SPW-KR124GXH56B did not work + one SPW-KR94 . All with same problem with blinking red led.

The outdoor unit models is SPW-C1155DXH8 .


Anyone can suggest what can be the problem ?


Thanks in advance