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Goodman

OEM Goodman -.37" WC NO Pressure Switch for GMV90905CXBA — 20197312

SKU: GOODMAN-12706 Brand: Goodman
$32.95 $43.95

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Texas CMBL #19328542014
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Govt POs Accepted

Goodman 20197312 Air Pressure Switch (-.37" WC, Normally Open)

The Goodman 20197312 is a genuine OEM negative air pressure switch calibrated to -0.37 inches of water column and configured normally open (NO). It is designed for the GMV90905CXBA two-stage, variable-speed 92% AFUE condensing gas furnace. This safety switch proves that the induced-draft blower is pulling adequate combustion airflow before the control board allows ignition. If venting is blocked, the condensate trap is clogged, or the inducer is weak, the switch stays open and safely prevents the burners from firing — protecting against incomplete combustion and CO risk.

Specifications

  • OEM Part Number: 20197312
  • Set Point: -0.37 in. WC (water column)
  • Configuration: Normally Open (NO), single stage of a multi-switch assembly
  • Fits: Goodman GMV90905CXBA condensing furnaces
  • Function: Combustion air / draft proving safety switch

OEM vs. Generic

Pressure switches are calibration-critical. The OEM 20197312 is factory-set to the exact -0.37" WC trip point the GMV90905CXBA control expects. Generic or mismatched-setpoint switches can cause chronic lockouts or, worse, allow firing under poor-draft conditions. Always match the setpoint and NO/NC configuration exactly.

Installation Difficulty

Moderate (3/5) — Roughly 20–30 minutes. Cut power, photograph wiring, transfer the two spade terminals and the rubber pressure hose, and mount the new switch. Verify the hose port is clear and the tubing routes without traps. A manometer check is recommended after install.

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 GMV90905CXBA — 20197312?
Yes. This is the factory-specified OEM pressure switch for the Goodman GMV90905CXBA — 20197312. 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 GMV90905CXBA — 20197312?
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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