Diagnostic Event: Thermal Dimming

Potential Symptoms

  • Inappropriate dimming levels. Depending on the ambient light conditions, the display may be too dim to read.

Diagnostic Event(s)

  • Thermal Dimming alert in Diagnostics
 

Environment

  • Product: System Health, IDM
  • Component: DB-1000, AF-2014
  • Control System: 

Cause

  • display cooling system malfunctioned
  • display filters plugged

Resolution

Onsite Troubleshooting Steps

Display face using fans/filtered display:

  • investigate fans, thermostat, and filters in problem area
  • if fans are not running adjust the thermostat to see if will activate the fans
    • if fans do not activate check power to thermostat
    • if there is power to the thermostat and it is still not working, replace thermostat
  • if fans are running check for dirty filters and replace as necessary

Display face using air conditioners:

  • verify thermostat controlling the air conditioning is set properly and that kicks on the AC system
  • HVAC tech will be needed to determine any issues with the air conditioning system itself.

Related Resources

Diagnostic Alert: Too bright at night event, Manual dimming set

Diagnostic Alert: Thermal dimming alert on DD in IDM, display is dim

Diagnostic Event: Controller too Dim

Diagnostic Event: Photocell Failure

KB ID: DD2056556


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