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The Goodman A3468601 Pressure Switch Tubing is genuine OEM 3/16" ID hose for the draft-proving circuit on the Amana/Goodman AMH80703AXCA 80% AFUE gas furnace. This tubing carries the negative-pressure signal from the inducer collector box or vent to the pressure switch, allowing the control board to confirm proper venting before energizing the gas valve.
OEM vs. Generic: Cracked, brittle, or clogged sensing tubing is a frequent cause of pressure-switch lockouts and no-heat calls. The OEM A3468601 is the correct 3/16" ID heat-resistant tubing that seals tightly on the switch and inducer ports, delivering an accurate pressure signal. Generic vinyl tubing can harden and leak, producing false open-switch faults.
Install Difficulty: Easy. Slide the new tubing onto the pressure-switch and inducer ports, ensuring no kinks or condensate traps. Shut off power first and route the line so moisture cannot pool inside it.
Restore a reliable draft-proving signal with the genuine Goodman A3468601 pressure switch tubing.