Whirlpool Whirlpool WDTA50SAKZ 47 dBA Top Control Dishwasher with 3rd Rack MECH-SPRAY Error Fix: Spray Arm Not Spinning

Error code MECH-SPRAY on the Whirlpool Whirlpool WDTA50SAKZ 47 dBA Top Control Dishwasher with 3rd Rack means: Spray Arm Not Spinning. The spray arms are not rotating during the wash cycle. The spray arm(s) may be blocked by a large dish, pot, or pan extending below the rack. Ensure items are loaded so they do not interfere with spray arm rotation. Check the spray arm bearing and mounting — a worn bearing allows the arm to wobble and stick. Remove the spray arm and check for clogged nozzle holes (use a toothpick to clear them). Also check the wash motor and diverter valve.

The most successful fix is "Replace Spray Arm Bearing and Inspect Wash Motor" (medium difficulty, ~60 minutes). Estimated DIY cost: $10-$15. HomeMD has 2 community-ranked fixes for this error.

This error is rated warning severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Replace Spray Arm Bearing and Inspect Wash Motor") is rated medium difficulty and takes about 60 minutes. Tools needed: T20 Torx screwdriver, Flathead screwdriver, Multimeter, Pliers.

DIY cost: $10-$15. Professional repair typically costs $150-$250. Many homeowners save money by trying the top-ranked community fix first.

The Whirlpool Whirlpool WDTA50SAKZ 47 dBA Top Control Dishwasher with 3rd Rack has 8 other known error codes, including: F1E1 (Stuck Relay on Control Board), F1E2 (Control Board Memory Error), F2E1 (Stuck Button on User Interface), F2E2 (User Interface Board Communication Error), F3E1 (Wash Thermistor/Sensor Fault), and 3 more.

Error code MECH-SPRAY also appears on 1 other Whirlpool model: Whirlpool WDT750SAKZ 24 in. Top Control Dishwasher. The fix may vary by model, so check each model's specific page for tailored repair steps.