All Legrand GFCIs fast flashing

VirutalElectrician

Senior Member
Location
Mpls, MN
Occupation
Sparky - Trying to be retired
Had a weird thing happen the other day. We were out of the house all day and came home to find stuff not working.

Tracked it down to every Legrand GFCI outlet in the house had a fast flashing red light. Every single one.

A reset button push brought them all back to life. But it's really weird that every single Legrand self test GFCI failed at the same time.

Other manufacturers and non-self test GFCIs where fine. The Leviton GFCI outlets and breakers where fine, as where the QO GFCI breakers.

The house has SPDs.

Anyone ever seen anything weird like that?
 
I mostly use Legrand GFCI receptacles. Never seen flashing indicator. They normally are solid red light when tripped. I would suspect flashing would maybe a lockout signal from maybe the "self test" feature. If that is the case the device should be no longer working properly and likely wouldn't reset either- just a guess though. Supposedly the "self test" is for circuit board performance and is supposed to permanently lock out if it fails. Don't confuse it with the function performed when pressing the actual test button, that is an actual introduction of a fault condition to check to see if it will trip and it should reset if the circuit board is still good.
 
snipped from the instructions:

1769323416922.png

It supposedly has failed the "self test" if light is flashing. One would think it would be a permanent failure but OP says it reset and is working so maybe some sort of non fatal failure happened and cleared itself up? Did not mention if they still trip when pressing test button and reset like they are supposed to.
 
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