What are the specs for this Pressure Switch?

The correct replacement for Goodman model GMS950704CXA Furnace — 20197312 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 GMS950704CXA Furnace — 20197312.

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 -.37in NO Pressure Switch for GMS950704CXA Furnace — 20197312

Name: OEM Goodman -.37in NO Pressure Switch for GMS950704CXA Furnace — 20197312
Brand: Goodman
SKU: GOODMAN-20197312
Price: 32.95 USD
Availability: InStock

SKU: GOODMAN-20197312 Brand: Goodman

$32.95 $43.95

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The Goodman 20197312 Air Pressure Switch is a genuine OEM -0.37 in. WC, normally open (NO) draft-proving control for the Goodman GMS950704CXA 96% AFUE condensing gas furnace and compatible GMS95-series models. Connected to the induced-draft blower, this switch confirms that the vent system is drawing correctly before the control board allows ignition. If the required negative pressure isn't reached — from a blocked flue, condensate backup, or weak inducer — the switch keeps its contacts open and safely prevents burner light-off.

Specifications

Type: Diaphragm air pressure (draft) switch
Set point: -0.37 in. water column
Contact configuration: Normally Open (NO)
Function: Proves induced-draft airflow before ignition
Fits: Goodman GMS950704CXA and GMS95-series furnaces
Replaces: Goodman OEM #20197312

OEM vs. Generic

Pressure-switch set point and contact type are calibrated to this furnace's inducer and vent design. This OEM switch trips at exactly -0.37 in. WC with the correct NO contacts, so venting is proven precisely as certified. A generic switch with the wrong set point or NC contacts can allow unsafe operation or cause chronic pressure-switch lockouts. Match the rating exactly.

Install Difficulty

Moderate (2 of 3). Power off, note and transfer the pressure hose(s) and spade terminals to the new switch, and remount. Inspect the hose and inducer port for condensate or blockage while you're in there. A 20–30 minute repair.

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 -.37in NO Pressure S...

$32.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman GMS950704CXA Furnace — 20197312?

Yes. This is the factory-specified OEM pressure switch for the Goodman GMS950704CXA Furnace — 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 GMS950704CXA Furnace — 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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