What are the specs for this Pressure Switch?

The correct replacement for Goodman model AMH80704BNAC — B1370176 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 AMH80704BNAC — B1370176.

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 -0.47" WC Pressure Switch for AMH80704BNAC — B1370176

Name: OEM Goodman -0.47" WC Pressure Switch for AMH80704BNAC — B1370176
Brand: Goodman
SKU: GOODMAN-5371
Price: 29.95 USD
Availability: InStock

SKU: GOODMAN-5371 Brand: Goodman

$29.95 $39.95

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The Goodman B1370176 Pressure Switch is a genuine OEM draft-safety control for AMH80704BNAC Goodman and Amana gas furnaces. This normally-open (NO) switch monitors the inducer draft; when the induced-draft blower creates a vacuum of about -0.47 inches of water column, the switch closes to prove airflow and allow the ignition sequence to continue. If the flue is blocked or the inducer fails, the switch stays open and safely prevents the burners from firing.

Specifications

Part Number: B1370176
Type: Air/draft pressure switch
Set Point: -0.47" WC (water column)
Action: Normally open, closes on negative pressure
Compatibility: Goodman / Amana AMH80704BNAC 80% AFUE furnaces
Brand: Genuine OEM Goodman

OEM vs. Generic

Pressure switch set points are critical — a generic switch rated even a few hundredths of an inch off can cause hard starts, short cycling, or persistent lockout codes. The OEM B1370176 is matched to the exact -0.47" WC trip pressure and hose-port geometry your AMH80704BNAC requires, ensuring reliable proving on every call for heat.

Installation Difficulty: Easy

Rated Easy (1/5). Disconnect power, pull the two electrical terminals and the rubber vacuum hose, remove the mounting screws, and install the replacement. Reconnect the hose firmly and confirm no cracks or kinks. Test the full ignition sequence afterward. Typical replacement takes 15–20 minutes for a DIY-capable owner or any HVAC pro.

Restore safe, code-compliant furnace operation with this genuine Goodman OEM pressure switch.

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 -0.47" WC Pressure S...

$29.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman AMH80704BNAC — B1370176?

Yes. This is the factory-specified OEM pressure switch for the Goodman AMH80704BNAC — B1370176. 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 AMH80704BNAC — B1370176?

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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