How to Fix the Frigidaire Gallery Dishwasher i20 Error Code

ID: 218159

Description: [youtubevideo|Dvn3Fzb88Yg]Use this guide to...

Steps:

  1. Turn off power to the dishwasher at the breaker before opening or moving the unit.
  2. Shut off the water supply if you need to disconnect the water supply hose.
  3. Disconnect the drain hose and water supply hose if they run through the floor or prevent the dishwasher from sliding out safely.
  4. Keep towels nearby to catch water from hoses or the bottom pan.
  5. Don't pull the dishwasher against connected hoses, because this can damage the hoses or fittings.
  6. Leave the breaker off for 10 or 15 minutes if you only need to finish a cycle.
  7. Restore power and try the cycle again.
  8. Turn the breaker off again if the i20 code returns.
  9. An i20 code is often caused by contamination blocking the pressure switch channel.
  10. Open the dishwasher door.
  11. Remove the filter from the bottom of the tub.
  12. Remove the filter cover from the same area.
  13. Set the filter and filter cover on a towel.
  14. Find the small hole in the sump area near the filter opening.
  15. This hole is the pressure switch channel that connects to the pressure switch under the dishwasher.
  16. Use a cotton swab, small brush, or pipe cleaner to clean debris from the channel.
  17. Clean the filter screen until the mesh is clear.
  18. Clean the filter cover before reinstalling it.
  19. Pull the dishwasher out far enough to reach the lower underside.
  20. Watch the drain hose, water supply hose, and power connection as the dishwasher moves.
  21. Stop if any hose or wire becomes tight, and disconnect it before pulling farther.
  22. Release the insulation from the series of clips along the side of the dishwasher.
  23. Move the insulation out of the way to expose the bottom of the dishwasher.
  24. Keep track of how the insulation sits so it can clip back into the same place.
  25. Look at the bottom of the dishwasher for the switch with black wires coming out of the bottom.
  26. This switch connects to the pressure switch channel you cleaned from inside the tub.
  27. Hold the body of the switch instead of pulling on the black wires.
  28. Unclip the pressure switch from its mount.
  29. Look inside the switch for buildup around the white portion and the D-shaped hole.
  30. Use a cotton swab, small brush, or pipe cleaner to remove the buildup.
  31. Keep water and loose debris away from the wire terminals.
  32. Clip the pressure switch back onto its mount.
  33. Watch for water from the drain hole while the pressure switch is removed.
  34. Use towels to dry any water in the bottom pan under the dishwasher.
  35. Water in the bottom pan can lift the float and trigger an i30 code.
  36. The float is a safety that makes the dishwasher keep pumping to prevent the pan from overflowing.
  37. Reinstall the lower insulation by clipping it back into the side clips.
  38. Reinstall the clean filter cover and filter in the tub.
  39. Reconnect the drain hose and water supply hose if you disconnected them.
  40. Turn the water supply back on if it was shut off.
  41. Restore power at the breaker.
  42. Start the dishwasher and continue or rerun the cycle.
  43. Check for leaks around any hose connections you disturbed.
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