What are the specs for this Pressure Switch?

The correct replacement for Goodman model WGFM195045S3BAB — 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 WGFM195045S3BAB — 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 -.37" WC Pressure Switch for WGFM195045S3BAB — 20197312

Name: OEM Goodman -.37" WC Pressure Switch for WGFM195045S3BAB — 20197312
Brand: Goodman
SKU: GOODMAN-14282
Price: 32.95 USD
Availability: InStock

SKU: GOODMAN-14282 Brand: Goodman

$32.95 $42.95

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Goodman 20197312 Pressure Switch (-.37" WC, Normally Open)

The Goodman 20197312 is a genuine OEM air-proving pressure switch calibrated at -0.37 inches of water column (WC) with a normally open (NO) contact configuration, built for the WGFM195045S3BAB furnace. This switch verifies that the induced-draft blower is generating adequate negative pressure to safely exhaust flue gases before the control board allows ignition. If proper draft isn't proven, the switch keeps the burners locked out — a critical carbon-monoxide safety function.

Specifications

OEM Part Number: 20197312
Trip Setpoint: -0.37" WC (water column)
Contact Type: Normally Open (NO)
Function: Draft / air-flow proving safety switch
Compatibility: Goodman WGFM195045S3BAB and related Goodman/Amana furnaces

OEM vs. Generic

Pressure switch calibration is model-specific — the -0.37" WC setpoint must match the furnace's blower and venting design exactly. The OEM 20197312 guarantees the correct trip point, while generic switches with approximate ratings frequently cause nuisance lockouts or, worse, allow ignition without adequate draft. Always match OEM on draft-proving safety components.

Installation Difficulty

Moderate — Power down the furnace, transfer the sensing hose and wiring spade connectors, and remount the switch in the same orientation. Verify the hose is free of condensate. About 20–30 minutes for a competent DIYer.

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 -.37" WC Pressure Sw...

$32.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman WGFM195045S3BAB — 20197312?

Yes. This is the factory-specified OEM pressure switch for the Goodman WGFM195045S3BAB — 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 WGFM195045S3BAB — 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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