System type: Pumped - differential control (not an ICS as had been reported by agency)
No longer operating. Collector taken down.
Had a pumped differential system. Roof was damaged during a storm several years ago. Collector was never replaced. Not sure if collector was damaged.
Checked the auxiliary tank area. Isolation valves were turned to isolation position. Controller was still plugged in. All three operating indicator lights were on. Unplugged the controller from the wall.