What are the specs for this Pressure Switch?

The correct replacement for Goodman model OEM Goodman -.30/-.75 in WC Pressure Switch GMV950453BXAB — 11177113 is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Goodman equipment which lists the model number OEM Goodman -.30/-.75 in WC Pressure Switch GMV950453BXAB — 11177113.

Is this pressure switch compatible with Bryant or Payne systems too?

Many Goodman parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

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Goodman

OEM Goodman -.30/-.75 in WC Pressure Switch GMV950453BXAB — 11177113

Name: OEM Goodman -.30/-.75 in WC Pressure Switch GMV950453BXAB — 11177113
Brand: Goodman
SKU: GOODMAN-12739
Price: 79.95 USD
Availability: InStock

SKU: GOODMAN-12739 Brand: Goodman

$79.95 $104.95

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The Goodman 11177113 Combination Pressure Switch is a genuine OEM dual-stage draft-proving control for the GMV950453BXAB two-stage 95% AFUE gas furnace. It combines two set points — -0.30 in WC and -0.75 in WC — in a single gray housing, verifying correct inducer draft on both low-fire and high-fire stages before the ignition sequence is allowed to proceed. If venting is blocked or the inducer is weak, the switch prevents ignition, protecting against unsafe combustion.

Specifications

OEM Part Number: 11177113
Type: Combination (dual) negative-pressure switch
Set Points: -0.30 in WC and -0.75 in WC
Housing Color: Gray
Category: Pressure Switch
Stages: Two-stage (low / high fire)
Equipment: Goodman GMV950453BXAB furnace

OEM vs. Generic

Pressure-switch set points are model-specific and safety-critical. The exact -0.30/-0.75 in WC calibration and dual-port gray body on this genuine Goodman switch cannot be reliably matched by a universal part. An incorrect set point causes nuisance lockouts (Code 6/pressure-switch faults) or, worse, allows firing under poor draft. Always replace with the exact OEM number.

Installation Difficulty

Moderate — Shut off power, label and transfer the pressure tubing to the correct ports, and reconnect the wiring harness. Confirm tubing is free of condensate and firmly seated. Estimated time: 20–30 minutes. Recommended for experienced DIYers or a licensed technician.

Genuine OEM part backed by same-day shipping on in-stock orders.

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

OEM Goodman -.30/-.75 in WC Pres...

$79.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman OEM Goodman -.30/-.75 in WC Pressure Switch GMV950453BXAB — 11177113?

Yes. This is the factory-specified OEM pressure switch for the Goodman OEM Goodman -.30/-.75 in WC Pressure Switch GMV950453BXAB — 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 OEM Goodman -.30/-.75 in WC Pressure Switch GMV950453BXAB — 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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