Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart

IMAGE COMING SOON

Goodman

OEM Goodman -0.50" WC NO Pressure Switch for GMV951155DXBA — 11177114

SKU: GOODMAN-12883 Brand: Goodman
$89.95 $118.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Goodman 11177114 Pressure Switch is a genuine OEM -0.50" water column, normally-open draft-proving switch for the Goodman GMV951155DXBA 96% AFUE variable-speed gas furnace and compatible GMV/GCV models. This safety control verifies that the induced-draft blower is pulling adequate venting airflow before the furnace is allowed to ignite — a required combustion-safety interlock.

When the inducer starts and pulls the correct negative pressure, the switch closes and permits ignition. If venting is blocked, the inducer is weak, or a hose is cracked, the switch stays open and the furnace safely refuses to fire. A faulty switch is a leading cause of furnaces that hum but never light.

  • Part number: 11177114 (OEM Goodman)
  • Type: Air-proving / draft pressure switch
  • Set point: -0.50" WC (water column)
  • Contacts: Normally open (closes on proven draft)
  • Fits: Goodman GMV951155DXBA and compatible condensing furnaces

OEM vs. Generic: The genuine 11177114 is calibrated to the exact -0.50" WC trip point Goodman engineered for this furnace's venting design. A generic switch with the wrong set point can allow ignition under unsafe draft conditions or cause chronic no-heat lockouts. For a combustion-safety device, OEM calibration matters.

Installation difficulty: Easy to moderate — typically two screws and one or two hose/wire connections, about 15–20 minutes. Confirm the hose ports are clear and the tubing is crack-free during replacement. Shut off gas and power before servicing; if the new switch still won't close, have a technician check for a venting restriction.

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 GMV951155DXBA — 11177114?
Yes. This is the factory-specified OEM pressure switch for the Goodman GMV951155DXBA — 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 GMV951155DXBA — 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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online