What are the specs for this Pressure Switch?

The correct replacement for Goodman model OEM Goodman -.30/-.75" WC Combination Pressure Switch — 11177113 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 OEM Goodman -.30/-.75" WC Combination Pressure Switch — 11177113.

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 -.30/-.75" WC Combination Pressure Switch — 11177113

Name: OEM Goodman -.30/-.75" WC Combination Pressure Switch — 11177113
Brand: Goodman
SKU: GOODMAN-14518
Price: 109.95 USD
Availability: InStock

SKU: GOODMAN-14518 Brand: Goodman

$109.95 $144.95

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Goodman 11177113 Combination Pressure Switch (-.30" / -.75" WC)

The Goodman 11177113 is a genuine OEM dual (combination) draft pressure switch for the two-stage WGFM295070V4CAA gas furnace. It combines two set points — -.30" WC and -.75" WC — in one gray housing to prove adequate inducer draft on both low-fire and high-fire stages before the control board allows ignition. A failed or drifted pressure switch is one of the most common causes of a furnace that clicks but won't light, or that short-cycles on stage changes.

OEM Part Number: 11177113
Set Points: -.30" WC and -.75" WC
Type: Combination / two-stage draft proving switch
Housing Color: Gray
Brand: Goodman
Equipment: Two-Stage Gas Furnace
Fits: WGFM295070V4CAA and compatible Goodman/Amana models

OEM vs. Generic

Pressure switch calibration is safety-critical — the set points must exactly match the furnace's designed inducer draft. The genuine Goodman 11177113 is factory-calibrated to the -.30"/-.75" WC spec. Generic switches with approximate set points can allow ignition under weak-draft conditions or lock out a healthy furnace. For a safety proving device, use the OEM part.

Installation Difficulty

Moderate (3/5) — Power off, photograph the hose and wire routing, then transfer the pressure tubing and spade connectors to the new switch in the same positions. Confirm no pinched or cracked hoses. Test firing on both stages after install.

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 -.30/-.75" WC Combin...

$109.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman OEM Goodman -.30/-.75" WC Combination Pressure Switch — 11177113?

Yes. This is the factory-specified OEM pressure switch for the Goodman OEM Goodman -.30/-.75" WC Combination Pressure Switch — 11177113. 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 OEM Goodman -.30/-.75" WC Combination Pressure Switch — 11177113?

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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