Why Does My 36M or 72M Module Show 'Error 1 Low Driver' or 'Error 2 Low Driver' in Hot Weather?

If your 36M or 72M module has been sitting in direct sunlight on a hot day, you may see an Error 1 Low Driver or Error 2 Low Driver message on the module display. This is a known thermal behavior on hot days. Your module is not damaged, and the error will clear on its own as the module cools.

Why it happens

As the module warms up in direct sunlight, the internal circuitry becomes more sensitive to temperature. That sensitivity is what trips the error display. This is a known thermal behavior of the 36M and 72M module electronics. It is not new, not a defect, and not a firmware issue.

What resolves it

The module cools naturally as the sun starts to set and temperatures drop. By showtime the error clears on its own and the show fires as designed. You do not need to reflash, or replace anything.

For Error 1 Low Driver specifically: if the message does not clear once your module has cooled, also check that your voltage mode matches your power source. Voltage mode mismatch is the other common cause of Error 1 Low Driver. See 36M/72M Voltage Mode for how to check and change it.

If you need to work with the module while it is still hot

  • Cover the module with something opaque, such as a tarp, blanket, or cooler lid, to keep it out of direct sun.
  • Move the module into a shaded or air-conditioned space for 20 to 30 minutes.

Either option will speed up the cooldown. Once the module has returned to a normal operating temperature, the Low Driver message will clear.

When to reach out

If the Error 1 Low Driver or Error 2 Low Driver message stays on the module after it has fully cooled (moved indoors overnight, or out of direct sun for several hours), Open a support request so we can take a closer look. If you can, include the ambient temperature when you first saw the message and how long the module has been cooling.

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