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Goodman

OEM Goodman -.30/-.75 in WC Combination Pressure Switch for GMV950453BXBA — 11177113

SKU: GOODMAN-12752 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 safety control for the GMV950453BXBA two-stage variable-speed gas furnace. It monitors inducer draft on both firing stages, closing at -0.30 in WC (low stage) and -0.75 in WC (high stage) to confirm proper venting before the gas valve is allowed to open.

  • Part number: 11177113
  • Setpoints: -0.30 in WC / -0.75 in WC
  • Housing color: Gray
  • Type: Combination (two-stage) negative-pressure switch
  • Fits: Goodman GMV950453BXBA two-stage furnaces
  • Category: Pressure Switch

OEM vs. Generic: A pressure switch is a life-safety device — its setpoints must match the furnace vent design exactly. The OEM 11177113 is factory-calibrated to both stages; a mismatched generic can allow ignition under blocked-vent conditions or cause chronic lockouts. Always use OEM for combustion safety controls.

Install difficulty: Moderate (3/5). Disconnect power, label and transfer the wiring and hose(s) to the matching ports, then mount the new switch. Verify low- and high-stage operation with a manometer after install. A licensed technician is recommended.

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 GMV950453BXBA — 11177113?
Yes. This is the factory-specified OEM pressure switch for the Goodman GMV950453BXBA — 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 GMV950453BXBA — 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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