Operating Instructions

16
10. Troubleshooting
Error Possible cause Remedy
Device is switched on,
no display, screen not
illuminated
• Battery flat
• Battery inserted incorrectly
• Device or switch faulty
• Replace battery
• Insert battery correctly
• Contact dealer and have device
repaired
Display jumps or screen
“frozen”
• Program error • Remove battery, wait one minute,
reinsert batteries
Irregular display screen • Battery power low • Replace battery
Device switches itself on
Commissioning
immediately out again
• Battery empty • Battery empty