Sanyo VRV

[Kad]

Hello guys, i need your help here.

I have a sanyo vrv unit

outside unit model - SPW-CR903GVH8
inside - RCS-SH80TG

and with this unit i have a weird problem, 5 inside units, 3 of them ok, with 2 others something weird happens, they just turn them self on, always in cooling mode, tried to reset the controller, checked for timers, all ok.

can any of u guys have the service manual for these units ?

regards,

[regcooldude]

maybe you have a centralized controller somewhere? or a scheduled timer ?

[techguy]

Hey Kad

Strange this should not happen unless as reg say's you have a central control device or are connected to an optional plug on the indoor PCB

Can you give some more info.

Check if any optional wiring is connected to the indoor unts PCB
Are the three units controlled off the same remote??

If there is a central control device and you can't find or access it try deleting the indoor units central address

This will stop it getting an on command from a timer or central control de.vice

Pres the test/chk set and Clr buttons for 4 seconds
use temp arrows to go down to code 3 after display changes.

Use the clock buttons to change the value of code 3 to 0099 then press set button.

If necessary press the unit button to access the next connected indoor unit and repeat he process.

Press test/chk to get out of this engineers mode.

Let me know if this helps if not get back to me with more info.