The green LED lights can be found:
1. On the two-button hand control for non-MaxiComfort® models. The MaxiComfort AutoDrive™ hand control features backlit buttons which serve as the SmartTek light for those models.
2. On the transformer.
3. On the wire that plugs from the motor into the transformer.
If all three LED lights are not lit, the user should first check that the chair is plugged into an electrical outlet, that the fuse or breaker for that outlet is properly working and all other connections are plugged together properly.
When the green LED on the transformer is not lit, it means that electricity is not getting to the transformer or there is a malfunction with the transformer and it needs to be replaced. When the green LED on the wire from the motor to the transformer is not lit (but the light on the transformer is), it means there is no power coming from the transformer to the motor.
When the green LED on the hand control is not lit, or the buttons on an AutoDrive hand control are not lit, and the chair is not working, there is a possible defect with the hand control.