I have the ZISS480DXBSS fridge, and the top lights are LED and no longer working (these lights are in addition to the tower halogen lights that are at the bottom of the fridge which are working fine).

i have tried to replace both LED board and the main control board with no help, parts below..

AP4982341 (WR55X11070) BOARD ASM MAIN CONTROL
AP5272342 (WR55X11007) BOARD LED LIGHT ASM

wondering what else it could be.. possible part AP4485257? and if so, how would you change that.. if its from the back, thats going to be a big job as this is a big heavy fridge and not really able to be pulled out.

any thoughts would be great.

thanks

for anyone with this issue, it was the transformer 1541

GE WR62X10070 Transformer - AppliancePartsPros.com

it gets replaced under the fridge from the front, no need to pull out the fridge, just unscrew the kick plate and then remove the 6 screws holding the transformer tray to the bottom of the fridge.. i did have an issue unscrewing the old one, so i just left it in place and mounted it next to it abandoned (there was room)

Hello:
How does this explain the fact you were only getting 27 volts on the input side to the led light transformer, instead of 120?

I am experiencing the same problem on my Monogram ZISS420DKBSS side-by-side refrigerator-freezer.

I have 2 led light transformers on this refrig, so I switched the 120 vac input (red-orange wires) from the left transformer to the right transformer and the refrig ceiling and lower drawer lights worked! So the right transformer is ok, it's just the 120vac (white-orange wires) are only registering 17vac when the refrig door is opened, which should activate the lights.

Does anyone have any ideas what could be bad upstream to cause the drop in voltage into the transformer?

Edited by user Tuesday, January 25, 2022 4:25:40 PM(UTC)  | Reason: Correct refrigerator model number