Dishwasher repair: when fixing pays off and when it doesn't

By Sandra Liu, Master appliance repair pro, 18 years · 2026-03-05

Dishwashers have a brutal repair-vs-replace math problem: most major repairs cost 40–60% of a new mid-range dishwasher. Add the install cost on top and you're at parity with a new unit before the tech leaves. Here's how to think about it.

The under-$200 repairs that are no-brainers

Door latch replacement ($120–$210), soap dispenser solenoid ($100–$180), drain hose ($90–$160), float switch ($110–$180). These are all worth doing on any dishwasher under 10 years old. They're simple, fast, and add years of life.

The $200–$400 borderline zone

Drain pump ($210–$380), wash motor ($280–$450), heating element ($240–$390), control board ($310–$520). At these prices, dishwasher age becomes the deciding factor. Under 6 years: fix it. 6–9 years: depends on which other parts are tired. 10+ years: replace, especially since new units run 30–40% more efficient.

Things that almost always mean replacement

Rust spots on the tub interior. Multiple control board failures in 2 years. Cracked spray arms on older machines (parts often discontinued). Persistent leaks that have already led to floor damage. A wash motor replacement on anything over 9 years old.

The hidden repair cost: water damage

Dishwashers are leak-prone. A repair that doesn't address an underlying drain hose or door gasket problem can lead to thousands in floor and cabinet damage 18 months later. Ask techs to verify gasket condition and drain hose integrity when they're inspecting — it's a $0 add if they're already there.