Frigidaire Ventilation or Drainage Airflow Issue

Garbage disposal causes a gurgling sound in nearby sinks or drains when operating.

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

Partially blocked vent stack, Long horizontal drain run, Undersized or improperly installed air admittance valve, Shared drain line restrictions

Safety note: Drain venting issues often require a plumber to correct.

Step 1 – Check for slow drains: If other fixtures drain slowly, the issue is likely in the shared drain/vent system.
Step 2 – Clean local piping: Ensure the P-trap and nearby drain arms are clear of buildup.
Step 3 – Inspect air admittance valve (if present): Verify it is installed upright and not blocked. Replace if suspected faulty.
Step 4 – Consult a plumber: Persistent gurgling indicates venting or main drain issues beyond the disposal itself.

Medium 3/5

Drain Vent / Air Admittance Valve

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