System type: ICS system.
No problem with system operation once valve position corrected.
Original client had moved. New owner did not know what solar system was all about. Explained system design and operation The system collector loop valves were turned to the wrong position - collector was isolated. Inspector corrected this. System is now working fine. Advised owner that water will have small air bubbles for next few days and then clear up. Owner was glad to know about the system. Will send ICS system owner’s manual.
As usual, the exterior insulation was deteriorating. In many cases such as this one, and others listed in the report, when the insulation deteriorates, it often leaves small sections of collector loop piping exposed. Duct tape used to cover insulation had also deteriorated.