SoundGuy wrote:
. . . it was a stormy weekend and we did lose power completely but when it was restored my EMS indicated a previous error PE2 which means an open ground. Obviously that open ground condition occurred before power was lost completely . . .
On my PI EMS (with a remote display) and two others that I helped install, ANY error code (Ex or PEx) is permanently lost once input power is removed/lost from the TT (and, as a consequence, the PI EMS).
FWIW, I can replicate your scenario by forcing an E2 error with my generator by removing the bonding plug. However, once the generator is shut-down and commercial power or generator power (with the bonding plug inserted) is reapplied, the PE2 error is permanently lost. At that point there is nothing to indicate any previous error or malfunction of any type. It simply acts like it's being turned on the first time.
It's possible you may have a new version of PI EMS with an EPROM memory capability.
