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Ts 790?

System has locked out displaying R. REM 02.

What does it mean and how can I correct it please.
Raul, January 2013
Keypad 2 removed from the system.

The panel isn't seeing rkp 02, so i would think it damaged or there's a problem with the wiring,

When was this system last serviced?

e manno, January 2013
link Click here to see other fixes for DSC PC790.