User Manual
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10 | Troubleshooting
10. Troubleshooting
10.1 PSU problems
10.1.1 PSU does not switch on (the screen is black)
• Make sure the power cable is connected and PSU power switch is in the on
“|” position. The off position is marked with “O”.
10.1.2 PSU has old light settings that need to be cleared
• Please perform a factory reset procedure, described in the “PSU factory reset”
chapter.
10.1.3 PSU does not allow to clear error messages
• It is possible that the errors persist. The “Error messages” chapter describes
the various error messages.
• If PSUs are in a stack (several PSUs on top of each other), the red status LED
helps to identify the problematic PSU. Remove it from the stack and try to
troubleshoot it separately.
10.1.4 Some light modules do not respond to light controls
• Make sure that you control the correct channel in PSU.
• If PSUs are in a stack, make sure that the status indicator of the top (master)
PSU is green, and the status indicators of all the other (slave) PSUs are amber
in color. If there are two or more PSUs in the same stack with the green status
indicator, there is a problem with the communication lines between the PSUs.
• Try to change the light using the rotary knob. All the status indicators of the
PSUs in a stack should react to knob manipulations with fast blinking. If the
status indicator does not change, it signies communication problems with
this particular PSU. Check that PSUs are connected together correctly and the
top contact pins along with the bottom contact plates are clean of dust and
debris, to ensure good contact. If the problem persists, the faulty PSU prob-
ably requires maintenance; please contact technical support for assistance.