What To Know
- A sensor that detects water levels in the dishwasher and shuts off the pump when the water is drained.
- Once you’ve completed the repairs, reset the dishwasher by unplugging it for a few minutes and then plugging it back in.
- Pour a cup of white vinegar into the bottom of the dishwasher and run it on a hot cycle to dissolve any mineral deposits or buildup.
If your dishwasher has stopped draining, leaving you with a sink full of dirty dishes, don’t despair. Fixing a dishwasher not draining can be a relatively simple task that you can handle yourself with the right tools and instructions. In this comprehensive guide, we’ll walk you through the step-by-step process of diagnosing and repairing the issue.
Understanding the Dishwasher Drainage System
Before we dive into the repair process, let’s briefly understand how a dishwasher’s drainage system works. The system typically consists of the following components:
- Drain hose: A flexible tube that carries wastewater from the dishwasher to the drainpipe.
- Drain pump: A motor that pumps the wastewater out of the dishwasher.
- Check valve: A device that prevents wastewater from flowing back into the dishwasher.
- Float switch: A sensor that detects water levels in the dishwasher and shuts off the pump when the water is drained.
Troubleshooting and Diagnosis
Before attempting any repairs, it’s essential to troubleshoot and diagnose the issue to determine the root cause. Here are some common symptoms and potential causes:
- Dishwasher won’t drain at all: Clogged drain hose, faulty drain pump, or malfunctioning check valve.
- Dishwasher drains slowly: Partially clogged drain hose or drain pump filter.
- Dishwasher drains intermittently: Faulty float switch or electrical issues.
Step-by-Step Repair Guide
Once you’ve identified the potential cause, follow these steps to repair your dishwasher not draining:
1. Check the Drain Hose
- Disconnect the drain hose from the drainpipe.
- Inspect the hose for any kinks, clogs, or damage.
- If the hose is clogged, use a drain snake to clear the obstruction.
2. Clean the Drain Pump Filter
- Locate the drain pump filter, usually at the bottom of the dishwasher tub.
- Remove the filter and clean it thoroughly under running water.
3. Replace the Drain Pump
- If the drain pump is faulty, you’ll need to replace it.
- Disconnect the electrical connections and drain hose from the pump.
- Unscrew the pump from the dishwasher and install the new one.
4. Replace the Check Valve
- The check valve is located in the drain hose near the drainpipe.
- Disconnect the hose and remove the check valve.
- Install a new check valve and reconnect the hose.
5. Replace the Float Switch
- The float switch is located at the bottom of the dishwasher tub.
- Unplug the dishwasher and disconnect the electrical wires from the float switch.
- Remove the float switch and replace it with a new one.
6. Check for Electrical Issues
- If the dishwasher still doesn’t drain after replacing the components, check for electrical issues.
- Use a multimeter to test the continuity of the wires and connections.
- If you find any faulty wiring, repair or replace it.
7. Reset the Dishwasher
- Once you’ve completed the repairs, reset the dishwasher by unplugging it for a few minutes and then plugging it back in.
Troubleshooting Tips
If you’re still having issues with your dishwasher not draining, try these troubleshooting tips:
- Run the dishwasher with vinegar: Pour a cup of white vinegar into the bottom of the dishwasher and run it on a hot cycle to dissolve any mineral deposits or buildup.
- Check the garbage disposal: If your dishwasher is connected to a garbage disposal, make sure the disposal is running properly and isn’t clogged.
- Call a professional: If you’re unable to repair the dishwasher yourself, don’t hesitate to call a qualified appliance repair technician.
Wrapping Up: Dishwasher Drain Repaired!
By following the steps outlined in this guide, you should be able to successfully repair your dishwasher not draining. Remember to troubleshoot the issue carefully, replace any faulty components, and reset the dishwasher after completing the repairs. If you encounter any difficulties or are unsure about any steps, don’t hesitate to consult a professional. With a little effort and patience, you can get your dishwasher draining properly again and enjoy clean dishes without the hassle.
Answers to Your Most Common Questions
1. Why is my dishwasher not draining completely?
A: Partially clogged drain hose, drain pump filter, or a faulty check valve can prevent the dishwasher from draining completely.
2. How do I know if my dishwasher’s drain pump is faulty?
A: If the dishwasher doesn‘t drain at all, makes excessive noise, or trips the circuit breaker, it may indicate a faulty drain pump.
3. Can I repair my dishwasher myself if it’s not draining?
A: Yes, it’s possible to repair a dishwasher not draining yourself if you have basic plumbing and electrical skills. However, if you’re not comfortable with the repairs, it’s best to call a professional.
4. How often should I clean my dishwasher’s drain hose and filter?
A: It’s recommended to clean the drain hose and filter every 3-6 months to prevent clogs and ensure proper drainage.
5. What causes a dishwasher to drain intermittently?
A: A faulty float switch or electrical issues can cause the dishwasher to drain intermittently.
