6600 power switch has flashes red

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several  times power switch has  been flashing red  in receive and had to reconnect
Photo of paul


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Posted 4 months ago

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Photo of Jim Runge

Jim Runge

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My 6600M is doing the same thing.  With SDR or with the radio alone.  The radio then reboots and then I can reconnect.  It has done it twice while I was transmitting and once or twice a day in receive only. Running .33
Photo of K3SF


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in the flex manual are the power button flash code

Power Button Color Codes

The Power button is used to turn the radio on and off and is illuminated with a number of colors to indicate the radio’s operational state:

  • FLASHING GREEN: Radio is starting or shutting down

  • SOLID GREEN: Radio is in receive mode

  • FLASHING RED: See Error Conditions below

  • SOLID BRIGHT RED: Transmitting on PA

  • SOLID DIM RED: Transmit engaged, but transmit interlocks are not ready. Refer to the SmartSDR documentation for description of the transmit interlocks.

  • SOLID ORANGE: Transmitting on XVTR port with low power

  • SOLID PURPLE: Radio is performing a software update

  • FLASHING WHITE: Radio is performing a reset to factory defaults

  • OFF: Radio is off

Error Conditions
  • Certain hardware and software error conditions cause the radio to stop operating and display an error code by flashing the Power button light as follows:

  • One red flash: Fan malfunction

  • Two red flashes: Software crash

  • Three red flashes: Boot failure

  • Four red flashes: Input power over voltage

  • Five red flashes: CPU overcurrent

  • Six red flashes: Input power under voltage

    In the case of a software crash, the error code repeats for about 15 seconds, then the radio will reboot.

  •  In the other cases, the error code repeats until the Power button is pressed, then the radio shuts down. An additional press of the Power button is needed to restart the radio.

  • Avoid removing power from the radio when it is performing a software update (power button is solid purple). Doing so may result in the radio becoming unresponsive.

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N5LB - Lionel

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Similar issue but was rf apparently via the Ethernet. Cable. Grounding the computer to the single point ground and four clamp on cores on the cable fixed it. This happened on the 30 and 20 meter band, one or the other. RF does strange things.