Should You Repair or Replace a Dishwasher?
Replace a dishwasher if it pools water, has visible rust, leaks despite a new gasket, or a major repair tops half a new unit's price. Otherwise, repair it.
Repair, replace, or neither?
Repair it if…
the problem is a spray-arm blockage, a detergent-dispenser latch, a drain pump, a door-latch switch, or a worn door seal — and the unit is under about 7 years old. These are cheap relative to replacement.
Replace it if…
water pools in the tub between cycles, a circulation pump, heating element, or control board fails past year 8, there's visible rust on the tub floor or rack tines, the door still leaks after a new gasket, or a repair quote tops half the price of a new unit.
What a replacement costs →Do neither yet if…
dishes are coming out gritty or still wet and you haven't cleaned the filter and spray arms yet. A clogged filter is behind a large share of 'my dishwasher stopped cleaning' complaints and costs nothing to fix. If it's still gritty after cleaning both, that's a genuine replace signal, not a jammed-filter false alarm.
Check how old it is →
For a dishwasher, repair is usually right under about 7 years old, and replace is usually right past year 8 — with two exceptions that apply at any age: visible rust on the tub floor, and a door that still leaks after a new gasket. Both mean the enclosure itself has failed, and neither is economically repairable regardless of how new the machine is.
Age matters more here than for a fridge or washer because a dishwasher's average service life is only about 9 years — the shortest of any major kitchen appliance. A repair that would be an easy yes on a 9-year-old refrigerator is often a no on a dishwasher the same age.
Should you repair or replace a dishwasher?
Compare the repair quote to the price of a new comparable unit: if it's half or more, replace. A repair averages $200 to $225, typically running $100 to $600 depending on the part (ConsumerAffairs; Angi). But a motor or pump repair alone can run $400 to $600 — close enough to a full replacement ($540-$2,175 installed) that the 50% line arrives fast once a major component is involved.
What's worth fixing, and what isn't?
Fix it — cheap, and not a sign the machine is failing:
| Problem | Typical age it shows up | Cost | Verdict |
|---|---|---|---|
| 🟢 Spray-arm blockage | Years 1-3 | Free-$20 | Repair |
| 🟢 Detergent-dispenser latch | Years 1-3 | $20-$60 | Repair |
| 🟢 Drain pump | Years 4-7 | $150-$350 | Repair |
| 🟢 Door-latch switch | Years 4-7 | $50-$150 | Repair |
| 🟢 Worn door seal | Years 4-7 | $30-$80 | Repair |
Replace it — the machine is at or near the end of its life:
| Problem | Typical age it shows up | Verdict |
|---|---|---|
| 🔴 Circulation pump, heating element, or control board fails | Years 8-10 | Replace, if past year 8 |
| 🔴 Water pools in the tub between cycles | Any age | Replace |
| 🔴 Dishes stay gritty or wet after cleaning the filter and spray arms | Any age | Replace |
| 🔴 Visible rust on the tub floor or rack tines | Any age | Replace |
| 🔴 Door leaks despite a new gasket | Any age | Replace |
| 🔴 Efficiency has clearly dropped, higher water use | Years 11+ | Replace |
Does the dishwasher's age change the answer?
Yes — the line is 8 years old. Under 7, most faults are cheap parts (spray arm, latch, drain pump, door seal) and repairing is almost always right. From year 8, the failures that start appearing are circulation pump, heating element, and control board faults — the expensive tier — and dishwashers average only about 9 years total, so a machine that age is already well into the window where a major repair is a bet against the clock.
If you don't know your dishwasher's age, the serial number gives it to you — check the inner edge of the door panel, or the tub rim. Bosch is the exception: look for the FD number instead of a dated serial.
How the repair-or-replace math works
Two examples:
- A $60 detergent-dispenser latch on a 4-year-old machine — fix it. Cheap, unrelated to the machine's overall condition, and the unit has years left.
- A $500 circulation-pump-and-motor quote on a 9-year-old machine — replace it. That's a different, pricier repair than the $150-$350 drain pump above — motor repairs run $400-$600 — and it's close to half the average replacement cost on a machine already past the average service life (Bob Vila puts a dishwasher over 9 years as likely nearing the end of its lifespan).
If you decide to replace it
A new dishwasher comes with a full warranty, and most current models use meaningfully less water and energy per cycle than a machine from a decade ago. What a replacement actually costs covers unit prices by tier and what installation adds. Since a dishwasher failure is a when-not-if expense, the maintenance budget calculator folds one into a yearly figure so it isn't a surprise.
Frequently Asked Questions
Is it worth repairing a dishwasher?
Usually, if the fault is a spray-arm blockage, a dispenser latch, a drain pump, a door-latch switch, or a worn seal, and the unit is under about 7 years old — these are cheap fixes. It stops being worth it when a circulation pump, heating element, or control board fails on a unit past 8 years old, or the repair quote is close to half the price of a new machine.
When should you replace a dishwasher instead of repairing it?
When water pools in the tub between cycles, when dishes stay gritty or wet even after cleaning the filter and spray arms, when a major component (circulation pump, heating element, control board) fails past year 8, when there is visible rust on the tub floor or rack tines, when the door leaks despite a new gasket, or when the repair quote tops half the price of a new unit.
How much does it cost to repair versus replace a dishwasher?
A repair averages $200 to $225, typically $100 to $600 depending on the part (ConsumerAffairs; Angi). A motor or pump repair alone can run $400 to $600 (Bob Vila) — close enough to a full replacement ($540-$2,175 installed) that age becomes the deciding factor.
My dishwasher is 10 years old but still runs fine — should I replace it?
No. A dishwasher that's still cleaning well, not leaking, and not showing rust is fine to keep past its average lifespan. Replace it when something fails that meets the criteria above, not on the calendar — though budget for the possibility, since 10 years is past the point where expensive-tier failures become common.
Sources
- ConsumerAffairs — How Much Does It Cost to Repair a Dishwasher? — average repair cost $200, range $160-$600
- Angi — How Much Does Dishwasher Repair Cost? — average $225, typical range $100-$300
- Bob Vila — Solved! 5 Factors for Deciding Whether to Repair or Replace a Dishwasher — repair cost range $50-$600, labor ~$70-$100/hr; part costs — filter $50-100, heating element $150-250, pump $150-350, motor $400-600; the 50% rule; a dishwasher over 9 years old is likely nearing the end of its lifespan
The Dishwasher Series
- 1How Old Is My Dishwasher?Decode the serial number and see where it sits against a typical lifespan.
- 2How Long Does a Dishwasher Last?The failure timeline by age, what shortens it, and the Bosch warranty exception.
- 3How Much Does It Cost to Replace a Dishwasher?Unit price by tier, installation cost, and what pushes the price up.
- 4Should You Repair or Replace a Dishwasher?You’re here — this article.