Dishwashers are essential appliances in modern kitchens, providing convenience and efficiency in cleaning dishes. However, like any other machine, dishwashers can develop issues over time, one of which is a malfunctioning diverter motor. If you notice that your dishwasher is not distributing water evenly or is making unusual noises, it may be time to troubleshoot the diverter motor. This comprehensive guide will walk you through the steps involved in diagnosing and repairing a faulty dishwasher diverter motor, empowering you to restore your dishwasher to optimal performance.
To begin the troubleshooting process, it is crucial to identify the symptoms indicative of a diverter motor issue. One telltale sign is uneven water distribution during the wash cycle. If some dishes are left with food residue while others are thoroughly cleaned, it suggests that the diverter motor is not functioning correctly. Furthermore, a malfunctioning diverter motor can produce unusual noises, such as loud humming or grinding sounds. These noises are often caused by worn or damaged gears or bearings within the motor.
Once you have identified the symptoms, you can proceed to inspect the diverter motor. Locate the motor, which is typically situated at the base of the dishwasher. Carefully disconnect the power supply to the dishwasher before proceeding further. Once the power is disconnected, you can remove the motor by unscrewing the mounting bolts. With the motor removed, visually inspect it for any obvious signs of damage, such as cracks or broken components. Additionally, check the wires and connectors for any loose or frayed connections.
Testing the Diverter Motor
To determine if the diverter motor is defective, you can perform the following tests:
Using a Multimeter
Disconnect the dishwasher from the power supply. Remove the access panel to expose the diverter motor. Set your multimeter to the resistance setting (ohms). Touch the probes to the terminals of the diverter motor. A reading of approximately 50 to 150 ohms indicates a functional motor. A reading of infinity or zero signifies a faulty motor.
Visual Inspection
Examine the diverter motor for any obvious signs of damage, such as burns, corrosion, or broken wires. If you notice any damage, it is likely the diverter motor is defective and needs to be replaced.
Manual Operation
Disconnect the dishwasher from the power supply. Use a pair of needle-nose pliers to gently pry the diverter valve open. If the valve opens and closes smoothly without resistance, the diverter motor is likely functioning correctly. If the valve is stuck open or closed, or operates with excessive resistance, the diverter motor may be defective.
| **Test** | **Result** | **Interpretation** |
|
Multimeter resistance test |
50-150 ohms |
Functional motor |
|
Multimeter resistance test |
Infinity or zero ohms |
Faulty motor |
|
Visual inspection |
No visible damage |
Motor likely functional |
|
Visual inspection |
Burns, corrosion, or broken wires |
Motor likely defective |
|
Manual operation |
Valve opens and closes smoothly |
Motor likely functional |
|
Manual operation |
Valve stuck open or closed, operates with resistance |
Motor may be defective |
Checking Water Pressure and Supply
The water pressure and supply to your dishwasher are crucial for its proper functioning. Follow these steps to troubleshoot any issues:
1. Check the Water Supply Valve
• Ensure that the water supply valve is fully open and not partially obstructed.
2. Measure the Water Pressure
• Attach a water pressure gauge to an outside faucet and open the valve fully.
• If the pressure is below the manufacturer’s recommended range (typically 20-80 psi), contact a plumber to increase it.
3. Clean the Water Inlet Screen
• Locate the water inlet screen at the bottom of the dishwasher’s interior.
• Unscrew the screen and clean any debris or sediment that may be blocking the water flow.
4. Inspect the Water Hoses
• Examine the water hoses connecting the dishwasher to the water supply for any kinks or leaks.
• Ensure that the hoses are securely attached to both the dishwasher and the water supply valve.
5. Assess the Drain Hose
• **Check for a Clogged Drain Hose:** Debris or food particles can cause the drain hose to become clogged. Disconnect the hose from the dishwasher and inspect it for any obstructions. If necessary, use a drain snake or a wire to clear the blockage.
• **Inspect the Drain Hose Length:** The drain hose should be the correct length and not excessively long or short. An overly long hose can create resistance to water flow, while a short hose may not allow the water to drain properly.
• **Secure the Drain Hose:** Ensure that the drain hose is securely connected to both the dishwasher and the drainpipe. A loose connection can cause water leaks or improper draining.
Assessing Mechanical Obstructions
Mechanical obstructions can prevent the dishwasher diverter motor from operating correctly. Here are the steps to identify and remove mechanical obstructions:
1. Water Supply: Check if the water supply to the dishwasher is turned on and there is sufficient water pressure.
2. Inlet Hose: Inspect the inlet hose for kinks, bends, or clogs that may restrict water flow to the dishwasher.
3. Drain Hose: Examine the drain hose for clogs or damage that may prevent water from draining properly.
4. Filter Screen: Clean the filter screen located at the bottom of the dishwasher to remove any food particles or debris that may block water flow.
5. Spray Arm: Check for any blockages or food residue on the spray arm that may hinder water distribution during the wash cycle.
6. Drain Pump: Inspect the drain pump for any obstructions, such as food particles, that may prevent it from draining water effectively.
7. Diverter Valve: Ensure the diverter valve is free of obstructions and moves smoothly when manually operated.
8. Impeller: The impeller, located inside the diverter motor, can become clogged with food particles or other debris. To access and clean the impeller, follow these steps:
– Disconnect the power supply to the dishwasher.
– Remove the lower access panel of the dishwasher.
– Locate the diverter motor and detach the impeller by unscrewing the retaining screw.
– Clean the impeller thoroughly using a soft brush or cloth.
– Reassemble the impeller and reconnect the diverter motor.
– Restore power to the dishwasher.
Replacing the Diverter Motor
Replacing the diverter motor is relatively simple and can be done by following these steps:
-
Disconnect the dishwasher from the power supply.
-
Remove the access panel to the dishwasher’s interior, usually located at the bottom of the door.
-
Locate the diverter motor, which is typically mounted on the bottom of the dishwasher tub.
-
Disconnect the wires from the diverter motor.
-
Remove the mounting screws holding the diverter motor in place.
-
Slide the diverter motor out of the dishwasher tub.
-
Insert the new diverter motor into the dishwasher tub and secure it with the mounting screws.
-
Reconnect the wires to the diverter motor.
-
Reinstall the access panel and reconnect the dishwasher to the power supply.
| Step Name | Description |
|---|---|
| Locate the diverter motor | The diverter motor is typically located on the bottom of the dishwasher tub. It will have a round or oval shape and will be connected to the water supply lines. |
| Remove the diverter motor | To remove the diverter motor, you will need to disconnect the water supply lines and remove the mounting screws that hold the motor in place. |
| Clean the diverter motor | Once the diverter motor is removed, you can clean it by removing any debris or build-up. Use a soft cloth and mild detergent to clean the motor. |
| Inspect the diverter motor | Once the diverter motor is clean, you should inspect it for any damage. Look for any cracks, leaks, or other problems. If the motor is damaged, it will need to be replaced. |
| Reinstall the diverter motor | To reinstall the diverter motor, simply reverse the steps that you used to remove it. Be sure to tighten the mounting screws securely and reconnect the water supply lines. |
| Test the diverter motor | Once the diverter motor is reinstalled, you should test it to make sure that it is working properly. Run a cycle on the dishwasher and check to see if the water is being diverted correctly. |
***
How To Troubleshoot Dishwasher Diverter Motor
The diverter motor is a small motor that controls the flow of water in the dishwasher. If the diverter motor is not working properly, the dishwasher may not be able to wash the dishes properly or may not be able to drain the water properly.
There are a few things that you can do to troubleshoot the diverter motor. First, check the power to the diverter motor. If the power is not on, the diverter motor will not be able to operate.
If the power is on, the next step is to check the continuity of the diverter motor. You can do this using a multimeter. If the continuity is not good, the diverter motor will need to be replaced.
If the power is on and the continuity is good, the next step is to check the operation of the diverter motor. You can do this by turning on the dishwasher and listening for the diverter motor to run. If the diverter motor does not run, it will need to be replaced.
People Also Ask
Why is my dishwasher not spraying water?
There are a few reasons why your dishwasher may not be spraying water. One reason could be that the diverter motor is not working properly.
How do I reset my dishwasher diverter motor?
To reset your dishwasher diverter motor, you will need to unplug the dishwasher from the power outlet. Then, wait for a few minutes and plug the dishwasher back in. This should reset the diverter motor.
How much does it cost to replace a dishwasher diverter motor?
The cost to replace a dishwasher diverter motor will vary depending on the make and model of your dishwasher. However, you can expect to pay between $50 and $150 for the part.
