Portable Haier AC displays P2 and stops cooling; water full indicator may be on.

Safety first: Turn off and unplug the portable AC before draining water.

• Drain the tank: Move the unit to a location where water spillage is acceptable. Remove the drain plug or cap at the bottom rear and drain water into a shallow pan.
• Check drain hose (if used): Ensure any continuous drain hose is not kinked or elevated above the outlet.
• Clean float switch: If accessible, clean the float and its chamber to remove slime or debris that may cause sticking.
• If P2 persists after draining: The float switch or water level sensor may be faulty and require replacement.