Thermo Pride Condensate Drain Blockage (Condensing Models)

Furnace leaks water around the base or inside the blower compartment.

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.

Possible Causes

Clogged condensate trap, Blocked condensate drain line, Cracked condensate collector box on Thermo Pride furnace, Improper drain slope

Safety First: Turn off power before working near electrical components. Water and electricity are a hazard.

Locate condensate system: Identify the plastic trap and drain tubing connected to the furnace.
Clear trap: Remove the trap (if serviceable) and flush with warm water to remove slime and debris.
Flush drain line: Use a wet/dry vacuum at the drain termination outside or at the floor drain to pull clogs out.
Inspect collector box: Look for cracks or leaks at the condensate collector on the secondary heat exchanger. Replace if damaged.

Medium 3/5

Condensate Trap

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