Tosot Condensate Drainage Failure

Indoor unit leaks water from the front panel or bottom

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Possible Causes

Clogged condensate drain line, Indoor unit not level (tilted away from drain), Algae or slime buildup in drain pan, Cracked or disconnected drain hose

How to Fix / Troubleshooting

Safety first: Turn off the unit and disconnect power before working near water.

  • Check unit level: Use a level to ensure the indoor unit is slightly tilted toward the drain side. Adjust mounting if necessary.
  • Clear drain line: Use a wet/dry vacuum at the drain outlet to remove clogs. Flush with a mixture of water and a small amount of bleach to kill algae.
  • Inspect drain pan and hose: Remove the front cover and check for cracks or disconnected hoses. Reconnect or replace as needed.
  • Preventive maintenance: Clean the drain line at the start of each cooling season.
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Repair Difficulty

Easy 2/5

Required Part

Condensate Drain Hose
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