If you’re experiencing problems with your dishwasher, the diverter motor may be the culprit. This small but essential component is responsible for directing water to the correct parts of the dishwasher during the wash cycle. When the diverter motor fails, it can cause a variety of problems, including:
- No water entering the dishwasher
- Water only entering the bottom rack
- Water only entering the top rack
- Leaking water
If you’re experiencing any of these problems, it’s important to troubleshoot the diverter motor to determine if it’s the cause. Here are a few steps you can take:
Understanding the Diverter Motor’s Function
The diverter motor is a crucial component in your dishwasher, responsible for directing water flow to the correct wash zones during the wash and rinse cycles.
Its operation is both simple and essential. When you start a wash cycle, the detergent dispenser opens and releases detergent into the water. This water-detergent mixture is then pumped into the diverter motor by the circulation pump. The diverter motor’s main job is to regulate the flow of this mixture to the upper and lower wash arms. By opening and closing specific ports within the motor, it ensures that water is distributed evenly to both wash zones.
The diverter motor is usually located in the base of the dishwasher, near the circulation pump. It consists of a small electric motor, a series of valves or ports, and a control circuit board. The control circuit board receives signals from the dishwasher’s main control module, which instructs the motor to open and close the ports at specific intervals. This coordinated operation ensures that water is directed to the appropriate wash zones at the right time during the wash cycle.
Faults with the diverter motor can lead to insufficient water flow or incorrect distribution of water to the wash arms, resulting in poor cleaning performance or even flooding. If you suspect an issue with your dishwasher’s water flow, the diverter motor should be one of the first components to be checked.
Common Problems and Troubleshooting
Diverter motor not receiving power: Check the electrical connections to the motor from the control board, ensuring secure connections and no damaged wires.
Faulty control circuit board: The board may not be sending the correct signals to the motor. It should be inspected for damaged components and continuity issues.
Clogged diverter motor ports: Food particles or scale buildup can block the ports, preventing proper water flow. Inspect and clean the ports using a soft brush or toothpick.
Defective diverter motor: If other troubleshooting steps fail, the diverter motor itself may be faulty. It should be replaced with a compatible part.
Common Symptoms of a Faulty Diverter Motor
A faulty diverter motor can manifest in several ways, including:
1. Dishwasher Not Washing or Cleaning Properly
The diverter motor plays a crucial role in directing water to the different parts of the dishwasher, including the spray arms. If the motor is malfunctioning, water may not be reaching these areas properly, leading to inadequate washing performance.
2. Water Leaking from the Dishwasher
A defective diverter motor can cause water to leak from the dishwasher in various ways. For example, if the motor is unable to correctly divert water, it may overflow from the machine’s tub. Additionally, if the motor’s seals are worn or damaged, water may escape from the motor housing.
| Leak Location | Possible Cause |
|---|---|
|
Bottom of the Dishwasher |
Damaged motor housing seals |
|
Near the Spray Arms |
Faulty motor diverting water |
|
From the Door |
Loose or damaged door gasket |
3. Unusual Noises
A malfunctioning diverter motor can produce unusual noises, such as grinding, whining, or humming. These sounds may indicate wear and tear on the motor’s components or internal damage.
Disassembling the Dishwasher for Motor Inspection
Finding and Removing the Motor Assembly
Locate the dishwasher’s motor assembly, usually situated at the bottom of the unit. Access may vary depending on the dishwasher model. Once found, disconnect any electrical connections and water lines attached to the motor.
Removing the Motor
Typically, the motor is secured in place with bolts or screws. Remove these fasteners carefully to avoid damaging surrounding components. Gently lift the motor out of its housing, taking note of the orientation of the wires and connectors.
Checking Wire Connections and Conductors
Thoroughly inspect the motor’s electrical wires and connectors for signs of damage, such as fraying, burns, or corrosion. Use a multimeter to test the continuity of the wires and ensure they are properly connected. Also, check the motor’s conductors for any signs of wear, arcing, or overheating. If any issues are found, repair or replace the affected components as necessary.
Troubleshooting the Phase Capacitor
The phase capacitor is responsible for providing the motor with a starting voltage. Use a capacitance meter to verify the capacitor’s value matches the motor’s specifications. If the capacitor fails to meet specifications, it should be replaced with a compatible model.
Inspecting the Motor’s Bearings and Housing
Examine the motor’s bearings for any signs of wear or excessive play. Lubricate the bearings with an appropriate lubricant as needed. Additionally, check the motor’s housing for cracks, damage, or any other irregularities that may affect its performance.
Reassembling the Motor and Dishwasher
After inspecting and repairing any issues, reassemble the motor in reverse order of disassembly. Ensure that all connections are secure and the motor is properly positioned in its housing. Reconnect the electrical wires and water lines, then reassemble the dishwasher.
Testing the Continuity of the Diverter Motor
To test the continuity of the diverter motor, you will need a multimeter. Set the multimeter to the ohms setting and then touch the probes to the terminals of the motor. If the motor is functioning properly, the multimeter should read 0 ohms. If the motor is not functioning properly, the multimeter will read infinity ohms.
Here are some additional tips for testing the continuity of the diverter motor:
- Make sure that the motor is disconnected from the power supply before testing it.
- Be careful not to touch the probes to any other metal surfaces, as this could give you a false reading.
- If you are not sure how to use a multimeter, consult the manufacturer’s instructions.
| Symptom | Possible Cause |
|---|---|
| The dishwasher does not fill with water |
|
| The dishwasher does not drain |
|
| The dishwasher leaks water |
|
Checking for Power Supply to the Diverter Motor
Verifying the power supply to the diverter motor is crucial. Here’s a detailed guide to troubleshoot this issue:
1. Safety Precautions
Before proceeding, ensure the dishwasher is disconnected from the power source and water supply. Safety first!
2. Access the Diverter Motor
Locate the diverter motor, usually situated beneath the dishwasher, accessible by removing the bottom panel or kickplate.
3. Identify the Wiring
Once you’ve accessed the diverter motor, identify the wires connected to it. Typically, these will include a power wire and a ground wire.
4. Use a Multimeter
With a multimeter, set to the voltage setting, check the power wire for voltage. Place the probes on the power wire at the point where it connects to the diverter motor.
5. Troubleshooting Results
| Voltage Reading | Possible Causes and Actions |
|---|---|
| 120 volts | Power is reaching the diverter motor. Proceed to test the motor further. |
| 0 volts | No power is reaching the diverter motor. Check the power supply, wiring connections, and circuit breaker. |
| Fluctuating voltage | Unstable power supply. Ensure the dishwasher is connected to a stable power source and the wiring is not damaged. |
Replacing the Faulty Diverter Motor
When troubleshooting your dishwasher, replacing the faulty diverter motor is a crucial step in ensuring proper operation. Follow these detailed steps to replace the diverter motor effectively:
1. Safety First: Before beginning, disconnect the dishwasher from the power source to prevent electrical shock.
2. Remove the Lower Rack: Remove the lower dish rack to access the diverter motor.
3. Locate the Diverter Motor: Typically located at the bottom of the dishwasher tub, the diverter motor is connected to the water inlet valve.
4. Disconnect Electrical Components: Unplug the electrical connector from the diverter motor.
5. Remove Mounting Screws: Using a screwdriver, remove the mounting screws that secure the diverter motor in place.
6. Remove and Replace the Diverter Motor: Carefully pull the old diverter motor out of its housing. Insert the new diverter motor into the housing and secure it with the mounting screws.
7. Reattach Electrical Connections: Connect the electrical connector to the new diverter motor.
8. Reinstall the Lower Rack: Replace the lower dish rack.
9. Reconnect Power and Test: Connect the dishwasher to the power source and run a test cycle to ensure the diverter motor is functioning properly.
Detailed Steps for Removing and Replacing the Diverter Motor
| Steps | Description |
|---|---|
| 1. Unplug the old diverter motor. | Locate the electrical connector and carefully unplug it from the diverter motor. |
| 2. Remove mounting screws. | Identify the screws that secure the diverter motor to the housing and remove them using a screwdriver. |
| 3. Pull out old diverter motor. | Gently pull the old diverter motor straight out of its housing. Be careful not to damage any components. |
| 4. Insert new diverter motor. | Align the new diverter motor into the housing and push it in until it is securely seated. |
| 5. Secure with mounting screws. | Replace the mounting screws to secure the new diverter motor in place. Tighten them securely. |
| 6. Reconnect electrical connector. | Locate the electrical connector and firmly plug it into the new diverter motor. Ensure a snug connection. |
Reassembling the Dishwasher Properly
Once the diverter motor has been replaced, it’s time to reassemble the dishwasher. Follow these steps to ensure proper reassembly:
1. Reconnect the Electrical Connections
Plug the wire harness back into the diverter motor. Make sure the connection is secure.
2. Install the Door Panel
Align the door panel with the dishwasher and snap it into place.
3. Reinstall the Lower Dishwasher Rack
Slide the lower dishwasher rack back into place. Make sure it’s fully inserted.
4. Reinstall the Upper Dishwasher Rack
Lift the upper dishwasher rack and slide it back into its tracks.
5. Close the Dishwasher Door
Close the dishwasher door firmly.
6. Check for Leaks
Run a test cycle to check for leaks. If any leaks occur, tighten the connections or call a qualified repair technician.
7. Dishwasher Diverter Motor Troubleshooting Table
If you are experiencing issues with your dishwasher diverter motor, refer to the following troubleshooting table for assistance:
| Issue | Possible Cause | Solution |
|---|---|---|
| Dishwasher is not washing properly | Diverter motor is not operating | Replace diverter motor |
| Dishes are not getting dry | Diverter motor is not opening the vent | Clean or replace vent |
| Water is leaking from the bottom of the dishwasher | Diverter motor is leaking | Replace diverter motor |
Resetting the Dishwasher’s Control Panel
Resetting the dishwasher’s control panel can clear any minor issues that may be affecting the diverter motor. Here’s a step-by-step guide:
- Unplug the dishwasher from its electrical outlet.
- Wait at least 60 seconds.
- Plug the dishwasher back in.
- Turn the dishwasher on and check if it is operating normally.
- If the problem persists, try resetting the control panel again.
If resetting the control panel does not resolve the issue, it may be necessary to contact a qualified appliance repair technician.
Troubleshooting the Diverter Motor
If the dishwasher’s diverter motor is not working, there are a few things you can check:
| Possible Cause | Possible Solution |
|---|---|
| Obstructed water inlet valve | Clean the water inlet valve and remove any debris. |
| Faulty solenoid coil | Replace the solenoid coil. |
| Electrical problem | Check the wiring and connections, and contact an electrician if necessary. |
If you are not comfortable troubleshooting the diverter motor yourself, it is best to contact a qualified appliance repair technician.
Verifying Successful Motor Replacement
Once you have replaced the diverter motor, it’s crucial to ensure it operates correctly. Here’s a detailed guide to verify successful motor replacement:
1. Power On the Dishwasher
Turn on the dishwasher at the circuit breaker or fuse box.
2. Check for Motor Hum
Listen carefully for a humming sound coming from the dishwasher. This indicates that the motor is receiving power.
3. Start a Cycle
Initiate a normal wash cycle to observe the diverter’s operation.
4. Monitor Water Flow
Open the dishwasher door and observe the water flow into the lower and upper racks. The water should be distributed evenly to both racks.
5. Check for Leaks
Inspect the connections and hoses for any leaks or dripping water.
6. Listen for Unusual Noises
Pay attention to any grinding, squealing, or rattling noises that may indicate a problem with the motor or other components.
7. Repeat Cycle with Clean Dishes
Once the cycle is complete, unload the dishwasher and run an empty cycle to ensure proper operation.
8. Inspect Dishware
Examine the cleanliness of the dishes. If there are still food particles or water spots, it may indicate an issue with the diverter or other dishwasher components.
9. Troubleshooting Water Flow Distribution
If the water flow is not evenly distributed between the upper and lower racks, follow these additional steps:
| Symptom | Possible Cause |
|---|---|
| Water only flows into the lower rack | Clogged lower spray arm or clogged water inlet valve |
| Water only flows into the upper rack | Clogged upper spray arm or clogged water inlet valve |
| Water flows unevenly between racks | Blocked or misaligned diverter valve or clogged spray arm jets |
If you encounter any of these issues, consult the appropriate repairs section for further troubleshooting.
How To Troubleshoot Dishwasher Diverter Motor
1. Water Not Flowing into Dishwasher
Inspect the diverter motor for any blockages or debris. If found, remove and clean the obstructions.
2. Dishes Not Getting Clean
Check if the diverter motor is properly diverting water to the spray arms. If not, adjust or replace the motor.
3. Diverter Motor Making Noise
If the diverter motor is making excessive noise, it may be worn or damaged. Replace the motor to resolve the issue.
4. Leaking from Diverter Motor
Check for loose or damaged seals around the diverter motor. Replace the seals if necessary to stop the leak.
5. Dishwasher Not Draining
Inspect the diverter motor for obstructions that may prevent water from draining. Remove any debris and check if the motor functions properly.
6. Dishwasher Not Starting
Ensure the diverter motor is receiving power. Check the wires and connections leading to the motor. If no power is supplied, replace the motor.
7. Error Code Indicating Diverter Motor Issue
Refer to the dishwasher’s user manual for specific error codes related to the diverter motor. Troubleshoot based on the error code instructions.
8. Water Leaking Underneath Dishwasher
Check if the leak is coming from the diverter motor or another component. Inspect the seals and connections for damage or leaks.
9. Dishwasher Not Cycling Properly
Ensure the diverter motor is functioning properly and diverting water as intended. Check for any obstructions or malfunctions within the motor.
Additional Troubleshooting Tips for Optimal Dishwasher Performance
1. Clean the dishwasher filter regularly to prevent blockages and ensure proper water flow.
2. Use a dishwasher cleaner to remove any buildup that may affect the diverter motor or other components.
3. Run the dishwasher empty with a cup of vinegar to eliminate mineral deposits and odors.
How To Troubleshoot Dishwasher Diverter Motor
If your dishwasher is not filling with water, not draining, or not washing dishes properly, the diverter motor may be to blame. The diverter motor is responsible for opening and closing the water valve that directs water to the dishwasher’s various components. If the diverter motor is not working properly, it can prevent the dishwasher from operating correctly.
To troubleshoot the diverter motor, follow these steps:
-
Unplug the dishwasher from the power outlet.
-
Locate the diverter motor. It is typically located at the bottom of the dishwasher, near the water valve.
-
Disconnect the wires from the diverter motor.
-
Use a multimeter to test the diverter motor. The multimeter should be set to the ohms setting.
-
Place one probe of the multimeter on each of the diverter motor’s terminals.
-
The multimeter should read between 10 and 20 ohms. If the diverter motor does not read between 10 and 20 ohms, it is faulty and needs to be replaced.
-
If the diverter motor is faulty, replace it with a new one.
-
Reconnect the wires to the diverter motor.
-
Plug the dishwasher back into the power outlet.
-
Start the dishwasher and check to see if it is working properly.
- The dishwasher is not filling with water.
- The dishwasher is not draining.
- The dishwasher is not washing dishes properly.
- The dishwasher is making a loud noise.
- Unplug the dishwasher from the power outlet.
- Locate the diverter motor. It is typically located at the bottom of the dishwasher, near the water valve.
- Disconnect the wires from the diverter motor.
- Remove the mounting screws from the diverter motor.
- Pull the diverter motor out of the dishwasher.
- Insert the new diverter motor into the dishwasher.
- Secure the new diverter motor with the mounting screws.
- Reconnect the wires to the diverter motor.
- Plug the dishwasher back into the power outlet.
- Start the dishwasher and check to see if it is working properly.
People Also Ask About How To Troubleshoot Dishwasher Diverter Motor
What are the symptoms of a faulty dishwasher diverter motor?
The symptoms of a faulty dishwasher diverter motor can include:
How do I replace a dishwasher diverter motor?
To replace a dishwasher diverter motor, follow these steps:
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 the dishwasher, as well as the cost of labor in your area. However, you can expect to pay between $100 and $200 for the repair.
