What are the specs for this Pressure Switch?

The correct replacement for Goodman model GMH951155DXAF — 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 GMH951155DXAF — 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 -.10 in WC Pressure Switch for GMH951155DXAF — 20197308

Name: OEM Goodman -.10 in WC Pressure Switch for GMH951155DXAF — 20197308
Brand: Goodman
SKU: GOODMAN-20197308
Price: 32.95 USD
Availability: InStock

SKU: GOODMAN-20197308 Brand: Goodman

$32.95 $42.95

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The Goodman 20197308 Pressure Switch is a factory-original combustion air-proving control for the Goodman GMH951155DXAF 96% AFUE two-stage gas furnace. This normally-open switch closes at approximately -0.10 inches of water column to verify the inducer motor is pulling adequate draft before the control board allows ignition. If the switch fails to close — from a weak inducer, blocked vent, clogged drain, or a bad switch — the furnace locks out and will not fire, a common no-heat complaint.

Specifications

Function: Combustion air / draft-proving pressure switch
Set point: -0.10 in. W.C. (negative pressure)
Contact type: Normally Open (NO), single stage
OEM Part Number: 20197308
Brand: Goodman (also fits many Amana equivalents)
Equipment: Condensing Gas Furnace
Direct fit: GMH951155DXAF

OEM vs. Generic

The OEM 20197308 is the genuine Goodman switch calibrated to the exact -.10" set point and hose-port orientation for reliable, code-correct ignition sequencing. The generic equivalent matches the set point and terminals at a lower price for cost-sensitive repairs. Because set point accuracy is safety-critical, OEM is recommended for pressure switches.

Installation Difficulty

Easy (2/5). Remove one or two mounting screws, transfer the two spade wires and the silicone sensing hose, then reinstall. About 15 minutes. Verify the hose is clear and seated. Cut power at the breaker before servicing.

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 -.10 in WC Pressure ...

$32.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman GMH951155DXAF — 20197308?

Yes. This is the factory-specified OEM pressure switch for the Goodman GMH951155DXAF — 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 GMH951155DXAF — 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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