What are the specs for this Pressure Switch?

The correct replacement for Goodman model GMV951155DXAB — 11177114 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 GMV951155DXAB — 11177114.

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 -0.50" WC Pressure Switch for GMV951155DXAB — 11177114

Name: OEM Goodman -0.50" WC Pressure Switch for GMV951155DXAB — 11177114
Brand: Goodman
SKU: GOODMAN-12870
Price: 76.95 USD
Availability: InStock

SKU: GOODMAN-12870 Brand: Goodman

$76.95 $99.95

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Goodman 11177114 Air Pressure Switch (-0.50" WC, NO)

This genuine OEM Goodman 11177114 air pressure switch is a direct-fit safety control for the GMV951155DXAB 96% AFUE two-stage variable-speed gas furnace. The switch monitors combustion draft and confirms proper venting before the ignition sequence is allowed to proceed. A failing pressure switch is one of the most common causes of a furnace that ignites briefly and then locks out, so replacing it with the correct OEM part restores reliable heating and eliminates nuisance trips.

Trip point: -0.50 inch water column (WC)
Contact configuration: Normally Open (NO)
Type: Single-stage negative-pressure diaphragm switch
Application: High-stage draft/vent proving
Fits: Goodman GMV951155DXAB and compatible 95/96% two-stage variable-speed models
OEM Part #: 11177114

OEM vs. Generic

The OEM Goodman 11177114 is calibrated to the exact -0.50" WC setpoint the furnace control board expects, ensuring correct staging and safety logic. Generic universal switches may carry a similar rating but often differ in mounting, hose-barb orientation, and actual trip tolerance, which can lead to false lockouts. For a furnace with a two-stage variable-speed blower, we strongly recommend the OEM part for guaranteed compatibility.

Installation Difficulty

Rating: Moderate (2/5). Requires shutting off power and gas, removing the pressure tubing, and transferring the mounting screws and wiring. Most confident DIYers can complete the swap in 20–30 minutes; verify the tubing is free of condensate and reconnected to the matching port. Professional installation recommended if you are not comfortable working near gas components.

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 -0.50" WC Pressure S...

$76.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman GMV951155DXAB — 11177114?

Yes. This is the factory-specified OEM pressure switch for the Goodman GMV951155DXAB — 11177114. 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 GMV951155DXAB — 11177114?

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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