Sanyo ecoi - problem

[yanev22]

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

[Brian_UK]

Did you connect all of the indoor unit to the main unit when you tested them?

[install monkey]

auto address em-
red light on indoor pcb is normal
power outdoor , link cno4 for auto address
wire all controllers in, check setting modes 12,13,14 on remotes
then ring tony duffy-tech guy on RE

[install monkey]

click on link below for service manual
http://www.mediafire.com/view/yzyby3...%20service.pdf

[yanev22]

No i just run one by one each with wired control to check if they work . Even i did not connect to the outdoor .

[install monkey]

did you get the manual from my previous link

[yanev22]

Yes, i did . Looks so complicated as i never run VRF .
So you said red blinking is normal ?

[install monkey]

yep its it shows indoor pcb is powered and transmitting a signal- transformer hasnt 2 outputs 12 and 24v - best option is get them fitted quick to then test it properly
usually sanyo kit is ok, compressors are expensive- but you can disable a faulty pot