repairing solar panels

which exact model of sanyo module do you have?  how many cells does it have?  what type of frame, and what type of wiring ( junction box, solarline 1, solarline 2)?

that info would help, i dont recall a sanyo 24v module of recent vintage.

it is possible for bypass diodes to fail although it is rare, generally the manufacturer would have those available if it is a j-box style module.  the techs at the module manufacturer would likely want to know measured voc, and isc apart from the array, as well as the serial number on the module and the irradiance level at test time if you have the cabability of measuring it.

james
altE staff

interesting, thanks for sharing.  i had not heard of that model.  since it has a j box, i would call sanyo and see what they have to say.  i would bet they would have the diodes available or at least could tell you the specs.

james
altE staff