What are the specs for this Pressure Switch?

The correct replacement for Goodman model AMS950704CXA — 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 AMS950704CXA — 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" WC NO Pressure Switch for AMS950704CXA — 20197312

Name: OEM Goodman -0.37" WC NO Pressure Switch for AMS950704CXA — 20197312
Brand: Goodman
SKU: GOODMAN-7340
Price: 32.95 USD
Availability: InStock

SKU: GOODMAN-7340 Brand: Goodman

$32.95 $42.95

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The Goodman 20197312 Pressure Switch is a genuine OEM air-proving safety control designed for the Goodman/Amana AMS950704CXA gas furnace and compatible models. This normally-open switch monitors negative pressure (vacuum) in the combustion venting system and closes at approximately -0.37 inches water column to confirm proper draft before the ignition sequence begins. If venting is blocked or the inducer fails, the switch keeps the furnace safely locked out.

Specifications

OEM Part Number: 20197312
Type: Negative-pressure (vacuum) proving switch
Contact Configuration: Normally Open (NO)
Trip Setpoint: -0.37" W.C.
Application: Gas furnace draft/pressure proving
Fits: Goodman/Amana AMS950704CXA and compatible units

OEM vs. Generic

This is a genuine OEM Goodman component calibrated to the exact -0.37" W.C. setpoint your furnace's control board expects. Generic or mis-rated switches can trip at the wrong pressure, causing nuisance lockouts or, worse, allowing operation under unsafe draft conditions. For a safety control, we recommend OEM.

Installation Difficulty

Moderate — Requires disconnecting power, transferring the vacuum hose, and swapping two spade terminals. A multimeter for continuity testing is recommended. Most experienced DIYers complete the job in 20–30 minutes; hire a licensed HVAC technician if you are unsure.

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" WC NO Pressur...

$32.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman AMS950704CXA — 20197312?

Yes. This is the factory-specified OEM pressure switch for the Goodman AMS950704CXA — 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 AMS950704CXA — 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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