LeaF

Ok...I finally got a chance to try your suggestion. I unplugged each component (blower, ozone, circ pump, pump 2) and they all did the same turn on/off immediately. On pump 1 (TB1-1,3,5) I did not get the same reaction however it seemed to come on, but when I looked at LCD panel I couldnt see anything (almost like the reading faded out yet I could still not get anything to work and the LCD wasnt lit up orange - it was black but faint messaging ---- that faded out). I turned off power inbetween each component. Then I tried the sensors plug again. When I removed it, turned power on the LCD came up and read SN3, 106F, SN1, ILOC.

My Sundance Altamar 850 recently stopped working unexpectedly. Power comes on for a second then goes blank. Originally thought it was the LCD panel but trouble shooting found that when I unplugged the sensors plug it stayed on. Tested all 3 (temp/ hi-limit/flow switches) and they all has power. None of the fuses were blown either? Any thoughts?