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Goodman

OEM Goodman -.10" WC NO Pressure Switch for GMH950703BXAG — 20197308

SKU: GOODMAN-11229 Brand: Goodman
$44.95 $58.95

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Texas CMBL #19328542014
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Govt POs Accepted

The Goodman 20197308 Pressure Switch is a genuine OEM draft-proving control rated at -.10 in. WC, normally open, for the GMH950703BXAG two-stage gas furnace. It senses negative pressure created by the inducer/draft motor and closes its contacts only when adequate venting airflow is confirmed — allowing the control board to proceed with ignition. This safety interlock prevents the furnace from firing with a blocked flue, failed inducer, or clogged condensate drain.

  • Set point: -.10 in. WC (water column)
  • Contacts: Normally open (close on proven draft)
  • Function: Verifies inducer/venting airflow before ignition
  • Fits: Goodman GMH950703BXAG and compatible furnaces
  • OEM Part #: 20197308

OEM vs. Generic: The exact -.10" set point and normally-open configuration are matched to this furnace's inducer and vent design. Installing a switch with the wrong pressure rating causes hard lockouts or unsafe operation. For a combustion-safety control, use the genuine OEM part.

Install difficulty: Moderate — two spade terminals and a single silicone hose to the inducer, but hose routing and the correct pressure rating are critical. Recommended for a licensed HVAC technician.

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

Frequently Asked Questions

Does this Pressure Switch fit my Goodman GMH950703BXAG — 20197308?
Yes. This is the factory-specified OEM pressure switch for the Goodman GMH950703BXAG — 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 GMH950703BXAG — 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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Mike Rivera
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