How to Fix / Troubleshooting

Safety: Turn off power before working near water and electrical components.

Steps to check:

Locate condensate trap: On condensing Luxaire furnaces, find the plastic trap assembly near the inducer or drain outlet.
Clean trap: Remove the trap if accessible and flush with warm water to clear debris or slime. Reinstall securely.
Check hoses: Ensure all vinyl hoses are firmly connected and not kinked. Verify the drain line slopes continuously downward to the floor drain or pump.
Inspect for cracks: Look for visible cracks in the trap or collector box; if found, they must be replaced.

If leaks persist, a technician should inspect the secondary heat exchanger drain and collector box.

Water leaking around the base of the furnace, especially on high-efficiency (PVC vented) models.

Possible Causes