"E3" on display for upper zone - error of DC
electric fan for upper zone.
I had an E3 on the upper zone. This fix was simple. Unscrew the 2 screws for the middle tray. Pull tray out as far as you can. Check the wires in the back, those are the wires for the fans in the back. The connectors over time corrode, and break off... All I did was connected the 2 wires that had broken off of their connector directly to each other. E3 went away and the cooler is working as it should now.in
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E3 code
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