Hotpoint HDA3600HWW 24 in Built-In Dishwasher with 48 dBA Noise Level and 5 Wash Cycles MECH-08 Error Fix: Detergent Dispenser Not Opening

Error code MECH-08 on the Hotpoint HDA3600HWW 24 in Built-In Dishwasher with 48 dBA Noise Level and 5 Wash Cycles means: Detergent Dispenser Not Opening. The detergent cup/dispenser door does not open during the wash cycle, leaving the detergent tab undissolved — the dispenser release mechanism uses a wax motor or bi-metal actuator that heats up and triggers a spring release at the correct point in the cycle; the actuator may have failed; the spring mechanism can also fatigue or break; check that the dispenser door is not physically blocked by a large dish or pot positioned directly in front of it on the lower rack; clean any detergent residue buildup from the dispenser latch and hinge with hot water and a toothbrush

The most successful fix is "Test and Replace Detergent Dispenser Wax Motor or Spring" (hard difficulty, ~60 minutes). Estimated DIY cost: $15-$25. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Test and Replace Detergent Dispenser Wax Motor or Spring") is rated hard difficulty and takes about 60 minutes. Tools needed: Torx T20 screwdriver, Multimeter, Needle-nose pliers.

DIY cost: $15-$25. Professional repair typically costs $150-$200. Many homeowners save money by trying the top-ranked community fix first.

The Hotpoint HDA3600HWW 24 in Built-In Dishwasher with 48 dBA Noise Level and 5 Wash Cycles has 8 other known error codes, including: MECH-01 (Not Draining — Water Standing in Tub After Cycle), MECH-02 (Not Filling with Water), MECH-03 (Dishes Not Getting Clean), MECH-04 (Leaking Water on Floor), MECH-05 (Not Drying Dishes), and 3 more.

Error code MECH-08 also appears on 7 other Hotpoint models: HPS18BTHBB 18 cu ft Top Freezer Refrigerator with LED Lighting and Humidity-Controlled Crispers, HSS25GFTWW 25.3 cu ft Side-by-Side Refrigerator with Ice & Water Dispenser and LED Interior Lighting, HTS18GBSSS 18 cu ft Top-Freezer Refrigerator with Adjustable Wire Shelves, HTW200ASKWW 3.5 cu ft Top Load Washer with Deep Water Wash and Dual Action Agitator, HTW240ASKWS 3.8 cu ft Top Load Washer with Deep Fill and Heavy Duty Agitator, HTX24EASKWS 7.0 cu ft Electric Dryer with Sensor Dry and Wrinkle Prevent Option, and 1 more. The fix may vary by model, so check each model's specific page for tailored repair steps.