What are the specs for this Pressure Switch?

The correct replacement for Goodman model GMH950453BXAF — 20197308 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 GMH950453BXAF — 20197308.

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 Pressure Switch -.10" NO for GMH950453BXAF — 20197308

Name: OEM Goodman Pressure Switch -.10" NO for GMH950453BXAF — 20197308
Brand: Goodman
SKU: GOODMAN-11149
Price: 41.95 USD
Availability: InStock

SKU: GOODMAN-11149 Brand: Goodman

$41.95 $54.95

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Goodman 20197308 Pressure Switch (-.10" WC, Normally Open)

The Goodman 20197308 is a genuine OEM air-proving pressure switch for the GMH950453BXAF 96% AFUE two-stage gas furnace and compatible Goodman/Amana models. This normally-open switch senses negative pressure from the induced-draft blower and closes at approximately -0.10" of water column, proving adequate venting airflow before the ignition sequence is allowed to proceed — a critical safety interlock against blocked flues or a failed draft motor.

Specifications

OEM Part Number: 20197308
Component Type: Air pressure / draft-proving switch
Trip Setpoint: -0.10" WC (water column)
Contact Configuration: Normally Open (NO)
Fits: Goodman GMH950453BXAF furnace

OEM vs. Generic

The OEM 20197308 is factory-calibrated to the exact -0.10" setpoint and contact type required by this furnace's control sequence — essential for reliable ignition and safe operation. Generic switches cost less but must match the setpoint, NO/NC configuration, and port style precisely; a mismatch causes lockouts or unsafe operation. For a safety-critical switch, OEM is strongly recommended.

Installation Difficulty

Moderate (2/5) — Disconnect power, note wire and hose positions, remove the mounting screw(s), and install the new switch with the tubing reconnected to the correct port. Typical time: 15–20 minutes. Verify proper sequencing on startup.

Fits Goodman GMH950453BXAF. Match setpoint (-.10") and NO configuration 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 Pressure Switch -.10...

$41.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman GMH950453BXAF — 20197308?

Yes. This is the factory-specified OEM pressure switch for the Goodman GMH950453BXAF — 20197308. 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 GMH950453BXAF — 20197308?

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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