Replaced LG Washing Machine (WM2077CW) Water Inlet Valve but selenoids not opening despite of voltage input

[Satorikn]

After having a semi-permanent open water line on a 3-way selenoid LG Water Inlet Valve on our LG Front Load Washing machine i decided to swap the valve for a new one, it was cheap enough and i've got electromechanic experience, i have to say that i have done this in the past as i am the all-around guy of the family that fixes stuff.

Now, i have tried 3 different water inlet valves and they are not letting water flow into the system.

As far as i know these selenoids (as marked) are supposed to open at the presence of 120V AC, which are present at the time of the beginning of the washing cycle, i used a multimeter and there is no voltage while on mode setting and 120V AC as soon as the cycle begin, there is water (and a strong pressure) on the line and as far as i can tell there are no restrictors on the valve itself.

The pressure switch seems to be operational or it wouldn't be sending voltage, i am no washing machine specialist but this seemed to be simple enough, precense of voltage > valve open/water flow, absence of voltage > valve closed/no water flow, there is 120V AC.

This is the 3rd time, i ordered an LG Original Part, then the same one from the same vendor didn't work, so i tried a different vendor and all 3 do the same, it is unlikely all 3 are defective, and unfortunately, i threw the old one that was working but leaking to test if there was any other changes in the system.

Anybody knows what's going on here that can shed a light?

More info/Pictures:

Inlet Valve Specifications (have correct working voltage): https://imgur.com/dsBbbtF
Voltage tested on water valve plug on mode selection (machine on, washing cycle off): https://imgur.com/iOnuh8b
Voltage tested on water valve plug on washing cycle (machine on, washing cycle on): https://imgur.com/3Mafq0m
Just slightly trying to disconnecting the water line hose causes pressure spilling, there is plenty of water coming: https://imgur.com/zE4gzj3

Thank you!

[john63]

Try using a power cord/plug (with 1/4 female connectors) on the water valves.

If the valve opens...replace the Main Board (if still available).