What are the specs for this Pressure Switch?

The correct replacement for Goodman model GMS950453BXA — 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 GMS950453BXA — 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 -0.37" Pressure Switch for GMS950453BXA — 20197312

Name: OEM Goodman -0.37" Pressure Switch for GMS950453BXA — 20197312
Brand: Goodman
SKU: GOODMAN-12194
Price: 32.95 USD
Availability: InStock

SKU: GOODMAN-12194 Brand: Goodman

$32.95 $42.95

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Goodman 20197312 Pressure Switch (-0.37" WC, Normally Open)

The Goodman 20197312 is a genuine OEM air-proving pressure switch calibrated at -0.37 inches of water column (NO — normally open) for Goodman GMS95 gas furnaces such as the GMS950453BXA. The switch senses negative pressure from the induced-draft blower and closes to prove adequate venting before the control board allows ignition. If the switch fails to close — due to a blocked flue, weak inducer, clogged drain trap, or the switch itself failing — the furnace will lock out for safety.

Specifications

Part type: Air pressure / draft-proving switch
Set point: -0.37" WC (water column)
Configuration: Normally open (NO), closes on draft
Fits: Goodman GMS95 series, including GMS950453BXA
OEM part number: 20197312

OEM vs. Generic

The OEM 20197312 is factory-calibrated to the exact -0.37" trip point required for correct, safe operation. Because an incorrect set point causes short-cycling or unsafe firing, we recommend OEM; our generic equivalent is offered only when the pressure rating and configuration are confirmed identical.

Installation Difficulty

Easy (1/5). Shut off power, disconnect the two spade terminals and the sensing hose, remove the mounting screw, and install the new switch — reconnecting the hose without kinks. About a 10-minute repair. Before assuming the switch is bad, inspect the hose, port, and drain for blockage.

Match the pressure value and NO/NC configuration to your original before ordering.

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 -0.37" Pressure Swit...

$32.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman GMS950453BXA — 20197312?

Yes. This is the factory-specified OEM pressure switch for the Goodman GMS950453BXA — 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 GMS950453BXA — 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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