Repair Clinic - Replacing the Air Breather Assembly in a Dishwasher

Introduction

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Preparation

1. Turn off power to the dishwasher.
2. Shut off water supply valve.
3. Uninstall the appliance:
   • Lift the lower access panel.
   • Use a 5/8 inch or adjustable wrench to unthread the water supply line (be prepared for water spill).
   • Use a Phillips head screwdriver to unthread the screw securing the junction box cover.
   • Pull the cover off and note the wire locations.
   • Untwist wire nuts to disconnect wires.
   • Unthread strain relief nut and detach strain relief from the junction box.
   • Disconnect drain hose from sink drain or garbage disposer; feed through cabinet.
   • Open dishwasher door and remove mounting bracket screws.
   • Adjust legs to lower appliance if necessary and carefully pull dishwasher away from the cabinet.

Removing the Old Air Breather Assembly

1. Open dishwasher door and pull the upper rack forward.
2. Remove front stop clips from support rails and slide out the rack.
3. Unthread nut securing air breather assembly to side panel and remove the assembly.
4. Note orientation of the three hoses.
5. Release clamps to detach hoses; break pinch clamp to detach inlet hose.
6. Disconnect wire connector to fully remove the old breather assembly.

Installing the New Air Breather Assembly

1. Transfer O-ring from old assembly to new one.
2. Slide new clamp onto inlet hose.
3. Attach three hoses to appropriate ports on new assembly and secure with clamps.
4. Connect wire connector.
5. Position assembly on side panel and thread assembly nut to secure.
6. Reposition insulation blanket and secure fasteners.

Reassembling the Dishwasher

1. Realign upper rack on support rails; replace front stop clips.
2. Ensure drain hose is accessible through cabinet wall.
3. Slide dishwasher back into cabinet; adjust leveling legs if necessary.
4. Replace screws to secure mounting brackets to cabinet or countertop.
5. Feed drain hose through cabinet and connect to sink drain or disposer.
6. Fully position wire strain relief in junction box, secure the strain relief nut.
7. Reconnect wires and secure with wire nuts.
8. Realign junction box cover and replace securing screw.
9. Reconnect water supply line to inlet valve elbow fitting.
10. Realign lower access panel and snap into place.

Final Steps

1. Turn water supply back on.
2. Restore power to the dishwasher.
3. Test dishwasher to ensure it’s functioning.

Conclusion

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