1. Diagnosis and Troubleshooting: Technicians inspect the dishwasher to identify the cause of any malfunctions or performance issues. They check for problems with water flow, drainage, heating, and other operational concerns.

2. Water Inlet Valve Repair or Replacement: If the dishwasher is not filling with water or is experiencing water flow issues, technicians may repair or replace the water inlet valve.

3. Drain Pump Repair or Replacement: A faulty drain pump can cause water to pool at the bottom of the dishwasher. Technicians can repair or replace the drain pump as needed.