Portable Tristar unit shows P2 and stops; may occur in dehumidify mode.

Safety first: Unplug the unit before tilting or draining.

Steps to try:

• Level the unit: Ensure the air conditioner is on a flat, level surface.
• Drain completely: Use both primary and secondary drain ports (if present) to remove all water.
• Flush drain passages: Use a small amount of warm water and mild detergent to flush internal drains, then fully drain again.

When to call a technician: Persistent P2 suggests a defective float or sensor that should be replaced.