39
LED Colour Flash/illumination
sequences
Possible cause Corrective action
Red
• Photocell interrupted/defective • Remove obstacle
• Repair/replace photocell
• Safety contact strip triggered/
defective
• Remove obstacle
• Remove obstacle
• Repair/replace safety contact
strip
• Programmed motor run time
exceeded
• Check that the roller door runs
smoothly: repair/replace if
necessary
• Check limit switch of tubular
motor: repair/replace if necessary
• Check tubular motor: repair/
replace if necessary
• Locking mechanism triggered • Repair/replace locking
mechanism
• Hardware error on circuit board • Replace control unit
Red
On
• Buzzer not active/defective • Connect/replace Buzzer
if necessary
O
• Buzzer active • If necessary, check settings
in SOMlink
12. Troubleshooting
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