What does the 'dEt' error code mean on the WFW96HEAU0?
The 'dEt' code means the dispenser cartridge is not detected by the washer. To resolve this, ensure the dispenser cartridge is inserted correctly and that the dispenser drawer is shut completely. For single-load doses of detergent, you can ignore this message. (Page 20)
From the official Whirlpool WFW96HEAU0 Front Load Washer manual, page 20
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