York Condensate Back-Up in Inducer or Pressure Tubes

Furnace inducer starts, but you hear gurgling and furnace shuts down; often on cold days.

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

Frozen or clogged condensate drain, Sagging condensate hoses, Improper vent slope causing water accumulation, Blocked condensate trap

Safety: Turn off power before handling hoses or trap.

Check drain line: Inspect the condensate drain for sags or low spots holding water. Straighten and support as needed.
Clear ice: In freezing weather, ensure the outside drain termination or condensate pump discharge is not frozen.
Flush trap and hoses: Remove and flush the condensate trap and hoses with warm water. Reassemble securely.
Test run: Restore power and run the furnace, listening for smooth inducer operation without gurgling.

Medium 3/5

Condensate Trap Assembly

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