MECH-DETERGENT
GE · GDT665SSNSS 24 in Front Control Dishwasher 50 dBA with Steam and Piranha Hard Food Disposer
The detergent tab or pod remains undissolved in the dispenser cup after the wash cycle — the spring-loaded dispenser door latch is not releasing at the proper time; the latch can be blocked by tall items in the lower rack positioned directly in front of the dispenser; the dispenser actuator spring or bi-metal release mechanism may have failed; check for debris or buildup around the dispenser hinge and latch
Error MECH-DETERGENT on the GE GDT665SSNSS 24 in Front Control Dishwasher 50 dBA with Steam and Piranha Hard Food Disposer means: Detergent Dispenser Door Not Opening. The top-ranked community fix is “Replace Detergent Dispenser Latch Assembly” (medium difficulty, ~45 min, DIY cost: $10-$20). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · dishwasher
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many dishwasher repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $110-$180.
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
Single Beep + Flash — Water Fill Issue
Two Beeps — Door Not Latched
Three Beeps — Water Temperature Issue
Start/Reset Light Flashing — Cycle Interrupted
Start Light Blinks Seven Times — Heating Element Fault
All Indicator Lights On But No Response
Service Code — Fill Valve Stuck Open
Service Code — Fill Valve Stuck Closed
The GE GDT665SSNSS 24 in Front Control Dishwasher 50 dBA with Steam and Piranha Hard Food Disposer has 8 other known error codes:
Error code MECH-DETERGENT also appears on 8 other GE models:
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