Samsung DV457EVGSGR/AA Technical Information page 6

ALIGNMENT AND ADJUSTMENTS
To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before
servicing, unless testing requires power.
DR modem connection test
Check if the parts from the Main PBA to the DR modem are properly connected electronically.
DV457* Model Only
- If you press the "3" button in service mode, the DR wire test is performed.
- If the DR wire test is successful, SG is displayed. Otherwise, the AE3 error occurs.
Service Mode
* If "AE3" or "AE4" error occured, press the Start button then error will be cleared.
How to exit :
DV455*
- Press Wrinkle Prevent + Temp. Keys for 3 second again, or Power Key. If no key is operated
during Service Mode for 5 minutes, the machine will return to normal user mode.
DV457*
- Tap Segment "4" three times Tap Segment "1" two times Tap Segment "4" once On the Service
Mode. If no key is operated during Service Mode for 5 minutes, the machine will return to
normal user mode.
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WARNING
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