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Goodman

OEM Goodman -.30/-.75 in Combination Pressure Switch AMV90704CXBB — 11177113

SKU: GOODMAN-7772 Brand: Goodman
$89.95 $119.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Goodman 11177113 Combination Pressure Switch is a genuine OEM dual-diaphragm draft safety control for the AMV90704CXBB gas furnace and compatible Goodman/Amana two-stage models. This gray-bodied switch combines two set points — -.30 in. W.C. and -.75 in. W.C. — to confirm proper venting and inducer draft at both low- and high-fire before the control board allows ignition. A failed pressure switch is one of the most common causes of a furnace that clicks but will not light.

Specifications

  • Type: Combination (dual) negative-pressure switch
  • Set points: -.30 in. W.C. and -.75 in. W.C.
  • Color code: Gray
  • Function: Vent/draft proving safety
  • Fits: Goodman/Amana AMV90704CXBB furnace
  • OEM Part Number: 11177113

OEM vs. Generic

The OEM Goodman switch is factory-calibrated to both trip points and uses the correct port fittings and electrical terminals for a plug-and-play swap. Generic alternatives may only approximate the set points, risking false lockouts or bypassed safety limits. Because this is a combustion safety device, we strongly recommend OEM.

Installation Difficulty

Moderate (20–30 min). Power down the furnace, label and transfer the tubing to the matching ports, move the wire spades to the same terminals, and mount the switch. Confirm the inducer pulls both switches closed on a call for heat. Recommended for experienced DIYers or an 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 OEM Goodman -.30/-.75 in Combination Pressure Switch AMV90704CXBB — 11177113?
Yes. This is the factory-specified OEM pressure switch for the Goodman OEM Goodman -.30/-.75 in Combination Pressure Switch AMV90704CXBB — 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 in Combination Pressure Switch AMV90704CXBB — 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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Mike Rivera
HVAC Parts Specialist — Online