MECH-SPRAY
Frigidaire · FDPC4221AS 24 in Front Control Dishwasher 50 dBA with ProDry and Delay Start
The spray arm wobbles, does not spin freely, or produces poor water coverage resulting in dirty dishes — food particles, mineral deposits, or broken glass can clog spray arm nozzles or jam the bearing; remove the spray arms, soak in vinegar, and clear each nozzle with a toothpick; check for tall items blocking spray arm rotation; inspect the spray arm bearing and bushing for wear
Error MECH-SPRAY on the Frigidaire FDPC4221AS 24 in Front Control Dishwasher 50 dBA with ProDry and Delay Start means: Spray Arm Not Spinning or Clogged. The top-ranked community fix is “Replace Spray Arm Bearing and Inspect for Wear” (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: $150-$220.
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
dishwasher · 2 fixes
The Frigidaire FDPC4221AS 24 in Front Control Dishwasher 50 dBA with ProDry and Delay Start has 8 other known error codes:
Error code MECH-SPRAY also appears on 9 other Frigidaire models:
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