The following maintenance recommendations must be carried out by someone who is trained and competent to do the work. For work you are competent to carry out on the solar system you must follow standard industry practice and safety requirements.
| Subsystem or component | maintenance action | frequency | remarks |
| site |
verify the following: (a)Â Â Â cleanliness (accumulation of debris around or under the array)(b)Â Â no shading of array |
quarterly | clean site as required trim trees, if required |
| PV modules | verify cleanliness (accumulation of dust or fungus on array) | quarterly | clean modules if necessary, with warm soapy water and a soft brush then hose down |
| PV modules | check for visual defects including: (a) fractures (b) browning (c) moisture penetration (d) frame corrosion |
yearly | PV modules with visual defects should be further inspected by a solar electrician for performance and safety and to determine the need for a replacement |
| wiring installation | check for visual defect: (a)Â Â integrity of cable entrance and/or conduit sealing |
yearly | wiring with visual defects should be further inspected by a solar electrician for performance and safety and to determine the need for a replacement |