Exposed copper wire at the banana jacks. This is caused by pulling on the wire instead of the jack when trying to remove the jack. Corroded or loose fitting banana plug, banana jacks or electrode connection nut. These may cause electrical arcing between the plugs, resulting in fire or electrical shock. Discard and replace all cords that do not pass the inspection.
Some manufacturers recommend replacing banana jacks annually.
Leaks Inspect gaskets on vertical electrophoresis chambers to ensure they are not leaking. If leaks are found, contact the manufacturer for replacement gaskets. Inspect the electrophoresis chamber for buffer leaks. Leaks may occur if there is crazing or cracks in the plastic. Loss of buffer can lead to electrical arcing and fires.