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Why Do Instruction Manuals Refer to White Indicator Lights as "Blue"? (alien.top)

submitted 11 months ago by [email protected] to c/[email protected]

4 comments fedilink hide all child comments

Just spent hours trying to factory reset a Rachio 3, but instead of it going to "rebooting mode", ie. displaying a pulsing white zone 1 light like in the reset instructions, it kept going to a pulsing blue light in zone 1...

Until I FINALLY I realized they were referring to this gunmetal-grayish blue color as WHITE.

I've noticed several router & gateway companies making the same mistake on their products indicator lights. They'll say, "is the status light a steady white?" And I'll say, "Yeah, if you mean light blue." Silence. "Yeah".

What gives? Are the LEDs getting syphilis over time?

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[–] [email protected] 1 points 11 months ago (3 children)

Looking at the installation video there is a white LED on the far left side which picks up some blue tinting from the plastic it's underneath, this shows up a bit on the outer edges when it's on alone in the startup sequence, but is strongest when the white LED is on and the amber is also on just next to it, that creates a small strong blue section between them.

[–] [email protected] 1 points 11 months ago (2 children)

In the video you definitely see white in the center and blue on the ends (of that leftmost quarter of the bar)

The unit I was working with has that blue color along the whole length of that quarter section.

[–] [email protected] 1 points 11 months ago (1 children)

Worker put the wrong LED in, or it's a defective LED

[–] [email protected] 1 points 11 months ago

OK I was wrong to say the "blue color" runs the whole length of the quarter section - - my video matches their video and your description:

https://drive.google.com/file/d/1ZlhkRvS0S72hyf4QlnEP6Kl_gVBbtp7m/view?usp=sharing

But the pulsing essentially goes from dark blue to very light blue, remaining darker blue on the edges as you say -- I.E. if for some reason I wanted to trick people into referring to this as "blue" while still being able to show in court that it technically was "white", THIS is how I would design it. (Why muddle the issue like this, combine blue & white in such close proximity [in both space AND TIME] and then ask ppl to look for one color? It matters in troubleshooting.)