I tried many of the suggestions from the troubleshooting guide from the earlier model, although many do not apply. I cleaned the sensors; if I disconnect the sensor and restart, the 170 fault goes away, the control panel "cell reversing" light comes on, sensor fault codes given, but there is no voltage at the cell. Can panel still light if the transformer is bad? Will a bad sensor cause the system to shut down? Should I just change out the sensor and see what happens?
Mod note: Thread split from here, AQUAPURE APUREM - no lights except Power On and no display