What are the specs for this Pressure Switch?

The correct replacement for Goodman model GMH951155DXAG — 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 GMH951155DXAG — 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" NO Pressure Switch for GMH951155DXAG — 20197308

Name: OEM Goodman -.10" NO Pressure Switch for GMH951155DXAG — 20197308
Brand: Goodman
SKU: GOODMAN-11549
Price: 32.95 USD
Availability: InStock

SKU: GOODMAN-11549 Brand: Goodman

$32.95 $42.95

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The Goodman 20197308 Pressure Switch is a genuine OEM draft-proving safety control for the GMH951155DXAG gas furnace, rated at -0.10 in. w.c. with normally-open (NO) contacts. Connected to the induced-draft blower, this switch confirms proper venting airflow before the ignition sequence begins — closing its contacts only when the correct negative pressure is sensed. If draft is blocked or the inducer fails, the switch stays open and locks out the furnace, preventing dangerous combustion. A weak diaphragm or off-spec switch is a leading cause of no-ignition and lockout codes.

Specifications

Part Number: 20197308
Category: Pressure Switch — Draft Proving
Set Point: -0.10 in. w.c. (water column)
Contact Type: Normally Open (NO), closes on draft
Equipment: Gas Furnace
Primary Fit: Goodman GMH951155DXAG
Brand: Goodman (OEM)

OEM vs. Generic

OEM (20197308): Factory-calibrated to the exact -0.10" set point and tube-port layout this furnace needs — critical, since an incorrect set point defeats the safety function. Strongly recommended.

Generic: Aftermarket switches must match the exact pressure rating, contact configuration, and hose fitting. Never substitute a different set point on a safety control.

Installation Difficulty

Easy (2/5). Power down the furnace, note the wiring, disconnect the two spade terminals and the rubber sensing hose, unscrew the bracket, and install the new switch. About 15–20 minutes. Confirm the -0.10" rating printed on the switch matches the original.

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" NO Pressure Sw...

$32.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman GMH951155DXAG — 20197308?

Yes. This is the factory-specified OEM pressure switch for the Goodman GMH951155DXAG — 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 GMH951155DXAG — 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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