What To Know
- Testing the drain pump is a relatively simple task that can help you determine if it needs to be replaced.
- Using a multimeter, set to the ohms setting, test for continuity between the two terminals on the drain pump.
- If the drain pump is making a loud noise, it may be faulty and need to be replaced.
If your LG dishwasher isn’t draining properly, the drain pump may be the culprit. Testing the drain pump is a relatively simple task that can help you determine if it needs to be replaced. Here’s a step-by-step guide on how to test LG dishwasher drain pump:
Materials You’ll Need
- Multimeter
- Screwdriver
Safety First
Before you begin, unplug the dishwasher and turn off the water supply.
1. Locate the Drain Pump
The drain pump is typically located at the bottom of the dishwasher. It’s usually a black or gray cylindrical-shaped component with wires connected to it.
2. Disconnect the Wires
Carefully disconnect the wires from the drain pump. Note the position of the wires so you can reconnect them correctly later.
3. Remove the Drain Pump
Unscrew the screws that hold the drain pump in place. Gently pull the drain pump out of the dishwasher.
4. Check for Continuity
Using a multimeter, set to the ohms setting, test for continuity between the two terminals on the drain pump. If the multimeter reads “OL” (open line), the drain pump is faulty and needs to be replaced.
5. Check for Resistance
If the multimeter reads a resistance value, the drain pump may still be functional. However, if the resistance is very high (over 100 ohms), the drain pump may be weak and should be replaced.
6. Inspect the Impeller
Remove the impeller from the drain pump. Inspect it for any damage or debris. If the impeller is damaged or clogged, it can prevent the drain pump from working properly.
7. Reassemble the Drain Pump
If the drain pump is still functional, reassemble it by reversing the steps above. Connect the wires, insert the drain pump back into the dishwasher, and secure it with screws.
8. Reconnect the Water Supply and Power
Turn on the water supply and plug the dishwasher back in. Run a test cycle to ensure that the drain pump is working properly.
Troubleshooting Tips
- If the drain pump is not running, check the power supply and ensure that the wires are properly connected.
- If the drain pump is running but not draining water, check the drain hose for clogs or kinks.
- If the drain pump is making a loud noise, it may be faulty and need to be replaced.
Wrapping It Up
By following these steps, you can easily test your LG dishwasher drain pump and determine if it needs to be replaced. Remember to unplug the dishwasher and turn off the water supply before starting the test. If you’re not comfortable performing the test yourself, consult a qualified appliance repair technician.
Questions We Hear a Lot
Q: Can I test the drain pump without removing it from the dishwasher?
A: No, it’s not possible to accurately test the drain pump without removing it from the dishwasher.
Q: How often should I test the drain pump?
A: It’s recommended to test the drain pump every 6-12 months, especially if you use your dishwasher frequently.
Q: Can I replace the drain pump myself?
A: Yes, it’s possible to replace the drain pump yourself if you have some basic DIY skills. However, if you’re not comfortable doing so, consult a qualified appliance repair technician.
