Dishwasher Lifespan: How Long Should It Last?

Quick answer

Dishwashers typically last 9-12 years. If yours is older and having issues, consider repair. For frequent breakdowns or high repair costs, replacement might be better. Always prioritize safety when troubleshooting.

Confirm the symptom

• Dishwasher is not cleaning dishes properly.
• Dishwasher makes loud or unusual noises.
• Dishwasher leaks water onto the floor.
• Dishwasher doesn't drain properly.
• Dishwasher doesn't start or stops mid-cycle.
• Control panel is unresponsive.
• Dishes come out with spots or residue.

Tools and prep

• Turn off power at the circuit breaker.
• Shut off water supply to the dishwasher.
• Gather screwdrivers, pliers, and a multimeter.
• Have replacement parts ready if needed.
• Clear the area around the dishwasher for easy access.
• Wear safety gloves and glasses.
• Consult the dishwasher's manual for specific instructions.

Step-by-step troubleshooting

1. Check Power Supply
   Do: Ensure the dishwasher is plugged in and the circuit breaker is on.
   Observe: Check if the dishwasher responds to control panel inputs.
   Means: Power issue
   Next: If no response, check the next step.
2. Inspect Water Supply
   Do: Check the water supply valve under the sink and ensure it's open.
   Observe: Look for any kinks or damage in the water supply hose.
   Means: Water supply issue
   Next: If the hose is damaged, replace it.
3. Clean the Filter
   Do: Locate and remove the filter at the bottom of the dishwasher.
   Observe: Check for debris or blockages.
   Means: Clogged filter
   Next: Clean the filter and reassemble.
4. Check the Drain
   Do: Remove the lower rack and locate the drain at the bottom.
   Observe: Look for any blockages or debris.
   Means: Clogged drain
   Next: Clear the drain and test the dishwasher.
5. Inspect the Spray Arms
   Do: Remove the lower and upper racks.
   Observe: Check the spray arms for clogs or damage.
   Means: Blocked spray arms
   Next: Clean or replace the spray arms if necessary.
6. Test the Heating Element
   Do: Use a multimeter to test the heating element for continuity.
   Observe: If there's no continuity, the element is faulty.
   Means: Faulty heating element
   Next: Replace the heating element.
7. Check the Control Board
   Do: Inspect the control board for any visible damage.
   Observe: Look for burnt components or loose wires.
   Means: Faulty control board
   Next: Replace the control board if damaged.
8. Run a Test Cycle
   Do: After making repairs, run a test cycle with a dishwasher cleaner.
   Observe: Monitor the dishwasher for proper operation.
   Means: Final check
   Next: If issues persist, consult a professional.

Common causes

Parts matching

Common parts that may need replacement as your dishwasher ages include:

• Drain pump: Ensures water is properly drained.
• Control board: Manages dishwasher operations.
• Spray arms: Distribute water to clean dishes.
• Heating element: Heats water for effective cleaning.
• Door seals: Prevent leaks around the dishwasher door.
• Float switch: Regulates water level inside the dishwasher.
• Motor: Powers the dishwasher's operations.

Always ensure you have the correct replacement parts for your specific dishwasher model.

When to call a professional

• Dishwasher continues to malfunction after troubleshooting.
• Major components like the motor or control board fail.
• Dishwasher is leaking water excessively.
• Dishwasher emits strange smells or smoke.
• Dishwasher is older than 12 years and frequently breaks down.
• Repair costs approach or exceed the cost of a new dishwasher.

FAQ

Related guides

• dishwasher repair
• dishwasher not draining
• dishwasher heating element
• dishwasher float switch

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