Service Manual Chapter3. User Handling Unit
© 2013
Nautilus Hyosung Inc.
All Rights Reserved.
3-15
Common Occurred Problem List
► Common Occurred Problem List
1. In case the EPP cover is detached-- to whatever extent-- due to a mistake made by
an operator or the maintenance personnel
2. In case there is a damage caused by any external shock or static electricity
3. In case the EPP is not connected with an earth cable, which makes it vulnerable to
static electricity
4. In case the battery is discharged
Troubleshooting
► Since the problem in this unit involves a security issue, you should replace the entire
unit when encountering a problem.
If a problem is confirmed, turn off the power, remove the power cable and bracket, and
then replace the unit with a new one. For the assembly of the unit, follow the reverse
order.
1. If LED1 is off, check the cable connection to see if the power supply is okay.
2. If LED1 is on and LED2 is off, it means EPP is in abnormal operation. Therefore,
replace the EPP
