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No display on interface. There’s 120v coming in so there is power.

Model Number
WF42H5200AW/A2
Serial Number
000F5NAJ606284E
What have you tried so far?

Replaced main board with DC92-01621D. Board blinking slowly red led. When pressed power on at the interface, the inverter starts blinking green but no display. Looks like there are different version of the main board from A to E. The model number is WF42H5200AW/A2 big space then 11. Am I using the wrong board version? When I look up the model number at Sears Parts Direct I only see two version which are 00 or 01.

Request Resource Materials
Service diagnostics guide, Parts manual, Service pointers, Job aids, Videos, Any available materials
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Hello
On all parts look ups for Samsung or LG we call either Marcone or Union to verify. I would call you local PDA to have them look it up. If it is the correct board, then run it through the diagnostics with the technician manual link below.

Marcone.com

https://www.ued.net/index.html

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