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Goodman

OEM Goodman Dual Pressure Switch -.30/-.75 for AMVC950453 — 11177113

SKU: GOODMAN-8719 Brand: Goodman
$79.95 $104.95

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Texas CMBL #19328542014
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Govt POs Accepted

The Goodman 11177113 Combination Pressure Switch is a genuine OEM dual-stage draft-proving control for the AMVC950453BXBA modulating variable-speed gas furnace and compatible Goodman and Amana models. This single gray assembly houses two switches — set at -0.30" WC and -0.75" WC — that verify proper inducer draft at both low-fire and high-fire stages before the control board permits ignition. It protects against blocked flues, condensate blockage, and inducer failure by preventing the burners from firing without adequate venting.

Specifications

  • Type: Combination (dual) negative-pressure / draft switch
  • Set points: -0.30" W.C. and -0.75" W.C.
  • Color: Gray housing
  • Function: Proves inducer draft at low and high fire stages
  • Fits: AMVC950453BXBA and compatible Goodman/Amana modulating furnaces
  • OEM Part Number: 11177113

OEM vs. Generic

Pressure-switch set points are furnace-specific and safety-critical. The OEM 11177113 is factory-calibrated to the exact -0.30"/-0.75" trip values your control board expects. A generic switch with different set points causes pressure-switch lockout codes or, dangerously, allows firing with poor draft. For a two-stage modulating furnace, use OEM.

Installation Difficulty

Moderate (2/5) — Shut off power and gas. Label and transfer the hoses to the matching ports and move the wiring to the new switch, keeping tubing routing identical. Confirm hoses are free of condensate and cracks. After install, cycle the furnace and verify both stages prove draft correctly.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $75
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Pressure Switch fit my Goodman AMVC950453 — 11177113?
Yes. This is the factory-specified OEM pressure switch for the Goodman AMVC950453 — 11177113. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the pressure switch on my Goodman AMVC950453 — 11177113?
Difficulty: Medium (20–30 min)
Step 1: Turn off power. Step 2: Locate pressure switch near draft inducer. Step 3: Note tubing orientation. Step 4: Disconnect tubing and wires. Step 5: Remove screw, install new switch. Step 6: Reconnect tubing and wires, restore power.
My furnace shows a pressure switch error. What do I replace?
Furnace LED showing pressure switch error = switch not detecting draft inducer airflow. Try first: clear the rubber tubing to the switch (often clogged with condensation). If problem persists, replace the pressure switch.
Is this pressure switch compatible with Bryant or Payne too?
Many Goodman parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Goodman pressure switch?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
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