If your dishwasher is experiencing issues, it’s helpful to know how to test, clean, or replace various components. Here’s a detailed guide to help you troubleshoot and repair your dishwasher.
Testing & Replacement Instructions
1. Air Gap
Testing:
- Purpose: Prevents dirty water from siphoning back into the dishwasher.
- Instructions: Remove the air gap cover and clean any debris with a brush.
Replacement:
- Instructions: Disconnect the hoses and replace the air gap if it’s damaged or cannot be cleaned.
2. Bimetal Terminal Assembly
Testing:
- Purpose: Senses temperature and helps in controlling the drying cycle.
- Instructions: Use a multimeter to test for continuity. No continuity means it needs replacement.
Replacement:
- Instructions: Disconnect the wires, remove the old assembly, and replace it with a new one.
3. Door Hinges
Checking:
- Purpose: Allows the door to open and close smoothly.
- Instructions: Inspect the hinges for damage or wear. Lubricate if necessary.
4. Door Latch
Checking:
- Purpose: Ensures the door is securely closed during operation.
- Instructions: Inspect the latch for damage and ensure it engages properly.
5. Door Seal Gasket
Checking:
- Purpose: Prevents water from leaking out of the dishwasher.
- Instructions: Inspect the gasket for cracks or wear.
Replacement:
- Instructions: Remove the old gasket and press a new one into the groove around the door.
6. Door Springs and Cables
Checking:
- Purpose: Helps in balancing the door weight.
- Instructions: Inspect for breakage or wear.
Replacement:
- Instructions: Disconnect the springs or cables and replace them with new ones.
7. Door Switch
Testing:
- Purpose: Prevents the dishwasher from running when the door is open.
- Instructions: Use a multimeter to test for continuity. No continuity means it needs replacement.
8. Drain Hose
Checking:
- Purpose: Carries waste water out of the dishwasher.
- Instructions: Inspect for blockages or leaks.
9. Drain Valve
Testing:
- Purpose: Controls the draining of water.
- Instructions: Use a multimeter to test for continuity.
10. Drain Valve Lever Arm
Testing:
- Purpose: Operates the drain valve.
- Instructions: Ensure it moves freely and is not obstructed.
11. Drying Fan
Testing:
- Purpose: Assists in drying the dishes.
- Instructions: Use a multimeter to test for continuity.
12. Float Assembly
Checking:
- Purpose: Regulates water level.
- Instructions: Inspect for smooth operation and ensure it moves freely.
Replacement:
- Instructions: Remove the float and replace it with a new one if it’s damaged.
13. Float Switch
Testing:
- Purpose: Prevents the dishwasher from overfilling.
- Instructions: Use a multimeter to test for continuity.
Replacement:
- Instructions: Disconnect the switch and replace it if necessary.
14. Heating Element
Testing:
- Purpose: Heats water for washing and drying.
- Instructions: Use a multimeter to test for continuity.
Replacement:
- Instructions: Disconnect the wires, remove the mounting bolts, and replace the element.
15. Motor
Testing:
- Purpose: Drives the water pump.
- Instructions: If the motor makes noise or doesn’t run, it may need testing and potentially professional servicing.
16. Rust
Cleaning and Repair:
- Purpose: Ensures longevity and appearance.
- Instructions: Clean rust spots with a rust remover and touch up with appliance paint if necessary.
17. Selector Switch
Testing:
- Purpose: Controls different wash cycles.
- Instructions: Use a multimeter to test for continuity.
Replacement:
- Instructions: Remove the switch from the control panel and replace it with a new one.
18. Spray Arm and Tower
Checking:
- Purpose: Sprays water to clean dishes.
- Instructions: Inspect for blockages and ensure they spin freely.
19. Thermostat
Testing:
- Purpose: Regulates water temperature.
- Instructions: Use a multimeter to test for continuity.
20. Timer Motor
Testing:
- Purpose: Controls the timing of different cycles.
- Instructions: Use a multimeter to test for continuity.
21. Water Inlet Valve
Testing:
- Purpose: Controls the flow of water into the dishwasher.
- Instructions: Use a multimeter to test for continuity.
Replacement:
- Instructions: Disconnect the water supply, remove the old valve, and install the new one.
Summary
By understanding and following these testing and replacement instructions, you can troubleshoot and fix many common dishwasher problems. Regular maintenance and timely repairs will help keep your dishwasher running efficiently and extend its lifespan. If any component is beyond repair or you are unsure about performing these tasks, consider seeking professional help.
