P1
TCL Full Condensate Tank / Water Level Protection

TCL portable AC displays P1 and stops; water full indicator may be on

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Possible Causes

Internal condensate tank full, Blocked internal drain passage, Faulty water level float switch, Unit not leveled properly

How to Fix / Troubleshooting

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

  • Step 1 – Drain water: Move the unit to a location where water spillage is acceptable. Remove the drain cap at the bottom rear and allow water to drain into a shallow pan or floor drain.
  • Step 2 – Clear blockage: If little water comes out but P1 remains, gently insert a flexible plastic rod into the drain port to clear any blockage.
  • Step 3 – Check float switch: Access the internal tank (per user manual) and ensure the float moves freely. Clean any slime or debris.
  • Step 4 – Level the unit: Ensure the portable AC is on a level surface so water flows correctly to the tank.

Warning: Do not tip the unit excessively; this can cause water to spill into electrical components.

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Repair Difficulty

Very Easy 1/5

Required Part

Condensate Float Switch
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