A dishwasher should make life easier, not leave dishes dirty. If you’re buying a home, you might notice the dishwasher not cleaning well. Before assuming you’ll need a new one, it’s important to know what causes poor performance. Some problems are easy to fix, while others may require expensive repairs. Checking the dishwasher during a home inspection can help avoid surprises. Here’s what home buyers should look for.
Common Reasons the Dishwasher Doesn’t Clean Dishes
A dishwasher that doesn’t clean properly often has one of these common issues:
- Clogged or Dirty Filters: Food particles and grease build up in the filter, blocking water flow. Many homeowners forget to clean the filter regularly.
- Hard Water Buildup: In homes with hard water, mineral deposits clog spray arms and coat the heating element. This reduces cleaning power and leaves spots on dishes.
- Blocked or Damaged Spray Arms: Spray arms distribute water during a cycle. If they’re clogged with debris or broken, water won’t reach all the dishes.
- Low Water Temperature: Dishwashers need hot water, around 120°F, to clean effectively. If the water heater is set too low, dishes come out greasy or still dirty.
- Wrong Detergent or Too Much Rinse Aid: Using the wrong detergent or too much rinse aid can leave a filmy residue. Older dishwashers may not work well with some newer detergents.
How to Spot a Dishwasher Problem During a Home Inspection
Before buying a home, take a few minutes to check the dishwasher. You may not be able to run a full cycle, but these signs can reveal trouble:
- Standing Water Inside: If water pools at the bottom, the dishwasher may have a clogged filter or drainage problem.
- Residue on the Interior: Check for food particles, grease, or soap scum inside. A dirty dishwasher often means poor performance.
- Strange Noises: Grinding or rattling sounds can indicate a failing motor or clogged pump.
- Moldy or Burnt Smells: Musty smells suggest drainage problems. A burning smell could mean faulty wiring.
- Leaks Under the Unit: Look for water stains or damage around the base. Hidden leaks can cause bigger problems over time.
Is It an Easy Fix or a Bigger Problem?
A dishwasher not cleaning dishes doesn’t always need an expensive fix. Here’s how to tell if it’s a minor issue or a major problem:
- Simple Fixes: Cleaning the filter, wiping down spray arms, and running a vinegar rinse can restore performance. Adding rinse aid can also help if dishes aren’t drying properly.
- Moderate Fixes: If the water isn’t hot enough, adjusting the home’s water heater can improve results. Switching to a high-quality detergent may also make a difference.
- Major Repairs: If the pump, motor, or heating element is failing, repair costs can add up fast. If the dishwasher is over ten years old, replacing it might be a better option.
How to Test the Dishwasher Before Buying a Home
A quick test during a home inspection can reveal if the dishwasher is in good condition. Even if the seller says it works, check it yourself:
- Run a short rinse cycle if possible. Make sure water circulates and drains properly.
- Open the dishwasher mid-cycle. The spray arms should be spinning and spraying water evenly.
- Inspect the door seal. Cracks, mold, or worn-out seals can lead to leaks.
- Check under the sink for water stains or mold. These may indicate past plumbing issues.
- Ask the seller about maintenance and the dishwasher’s age. A well-maintained unit is less likely to have issues.
Should You Ask the Seller to Repair or Replace the Dishwasher?
If the dishwasher not cleaning properly seems like a big issue, consider asking the seller to fix or replace it. Keep these factors in mind before negotiating:
Condition of Other Appliances: If multiple appliances in the home are outdated, negotiating a price reduction or credit might make more sense than asking for individual repairs.
Age of the Dishwasher: Most dishwashers last 10-12 years. If it’s near the end of its lifespan, replacement may be the better choice.
Cost of Repairs vs. Replacement: Small repairs like cleaning the filter or adjusting the water heater setting are simple. But if the pump or heating element is failing, replacement might be more cost-effective.
Conclusion
A dishwasher not cleaning properly can be caused by something as simple as a clogged filter or as serious as a failing motor. Before buying a home, take time to inspect the dishwasher and test its performance. If the problem is minor, a quick fix might be all that’s needed. If it’s a bigger issue, consider negotiating repairs or a replacement with the seller.
A working dishwasher is essential for daily convenience, but it’s just one of many appliances and systems you should evaluate before purchasing a home. A professional home inspection can help uncover hidden issues with kitchen appliances, plumbing, electrical systems, and more. Contact us today to schedule your home inspection and ensure your new home is move-in ready!
