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How do you fix the Bosch Dishwasher H 01?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

The Bosch dishwasher h 01 error code indicates that there is a problem with the water heating system. This can be caused by a number of things, such as a faulty heating element, a problem with the water supply, or a blockage in the water line. If the dishwasher is not able to heat the water to the proper temperature, it will not be able to wash the dishes properly. This error code can also be caused by a lack of water in the dishwasher.

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1. Check the water supply and ensure that it is turned on and that there is adequate pressure

  1. Verify that the water supply is turned on by checking the faucet.
  2. Inspect the water pressure gauge to ensure that it is reading at least 800 psi.
  3. If the water pressure is low or if the gauge does not read at 800 psi, then the water supply may need to be replaced.

2. Check the drain hose and ensure that it is not kinked or blocked

  • Open the dishwasher door
  • Check the drain hose and ensure that it is not kinked or blocked
  • If the drain hose is blocked, remove the obstruction and replace the hose
  • Close the dishwasher door and check the operation

3. Clean the filters and ensure that they are not clogged

-Remove the filters from the dishwasher by unscrewing them. -Rinse the filters with hot water. -Scrub the filters with a brush if necessary. -Place the filters back in the dishwasher. -Start the dishwasher and wait until the filters have heated up. -Pour hot water into the dishwasher and run the dishwasher until the water is hot. -Place the dishwasher detergent tablets into the dishwasher and run the dishwasher until the tablets have dissolved. -Empty the dishwasher of water. -Screw the filters back on to the dishwasher. -Close the dishwasher door. -Wait until the dishwasher has cooled down. To ensure that the filters are not clogged: -Check the filters every month if the dishwasher is not being used frequently. -If the filters are dirty, clean them with a brush. -If the filters are clogged, use a plunger to clear the clog.

4. Clean the dishwasher itself, including the spray arm, to remove any build-up of dirt or debris

  1. Open the dishwasher door and remove any food or dishes that may be blocking the spray arm.
  2. If the dishwasher has a spray arm, spray a small amount of dishwashing detergent onto the arm and let it run through the entire spray pattern.
  3. Wipe down the spray arm and the inside of the dishwasher with a clean, damp cloth.
  4. Replace any food or dishes that were removed in step 1 and close the dishwasher door.
  5. Run the dishwasher on the hottest water setting for a few minutes to heat up the dishwashing detergent and loosen any debris.
  6. Close the dishwasher door and wait a few minutes for the dishwasher to finish cleaning.

5. Check the heating element to ensure that it is working properly

  1. Look for any malfunctions with the heating element
  2. Check the breaker to ensure that it is not tripping
  3. Check the fuses to ensure that they are not blown
  4. Check the wires to make sure that they are not frayed
  5. Check the thermostat to ensure that it is not broken

6. Replace any worn or damaged parts as necessary

  1. Open the dishwasher door.
  2. Remove the dishwasher top.
  3. Remove the dishwasher bottom panel.
  4. Remove the arm and motor.
  5. Remove the spray arm.
  6. Remove the spray arm bracket.
  7. Remove the spray arm stem.
  8. Remove the spray arm washer.
  9. Remove the spray arm seal.
  10. Remove the spray arm bracket seal.
  11. Remove the spray arm stem seal.
  12. Remove the spray arm.
  13. Remove the arm and motor.
  14. Remove the spray arm bracket.
  15. Remove the spray arm stem.
  16. Remove the spray arm washer.
  17. Remove the spray arm seal.
  18. Remove the spray arm bracket seal.
  19. Remove the spray arm stem seal.
  20. Clean the arm and motor.
  21. Clean the spray arm.
  22. Clean the spray arm bracket.
  23. Clean the spray arm stem.
  24. Clean the spray arm washer.
  25. Install the arm and motor.
  26. Install the spray arm bracket.
  27. Install the spray arm stem.
  28. Install the spray arm washer.
  29. Install the spray arm seal.
  30. Install the spray arm bracket seal.