P2
Danby Upper Water Tray Full / Secondary Float Triggered (Some Portable Models)

Portable AC displays P2 and may stop cooling or dehumidifying.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Excessive condensate due to high humidity, Blocked upper drain path, Stuck upper float switch, Faulty float wiring

How to Fix / Troubleshooting

Safety: Unplug the unit before draining.

Steps:

  • 1. Drain both ports: Some Danby portables have both upper and lower drain ports. Remove both caps and drain completely.
  • 2. Inspect upper tray: Remove the rear cover to access the internal trays. Check for mold, slime, or debris that could block water flow.
  • 3. Check upper float: Locate the upper float switch and verify it moves freely. Clean any buildup and test continuity with a multimeter while moving the float.
  • 4. Reassemble and test: After cleaning and draining, reassemble and run the unit. If P2 persists, replace the upper float switch assembly.
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Repair Difficulty

Medium 3/5

Required Part

Upper Float Switch
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