10
5 Maintenance
6 Troubleshooting
Troubles
Analysis of causes
Resolution
Black display screen
Power off
Poor switching
Broken controller
Check power supply and re-
plug power socket;
Replace switch;
Contact us.
Display Screen shows “PT
EEROR” and it sends alarm
tone
Open circuit or open circuit of
temperature control sensor
Contact us.
Module did not heat up
Heater malfunction
Contact us.
Key malfunction
Broken membrane switch
Contact us.
Regularly clean longhole on module with clean soft cloth that takes a
little absolute alcohol. Make sure tube contact wall of taper hole
sufficiently, good thermal conductivity and avoiding contamination. Use
soft cloth that takes cleansing cream to clean the surface.
Must turn off power before cleaning the device. Cleaning Solution is
forbidden to pour into holes on module. Do not use corrosive cleaning
solution.