What are the specs for this Pressure Switch?

The correct replacement for Goodman model GUPI120-5 — B1370133 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 GUPI120-5 — B1370133.

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 -0.35" WC NO Pressure Switch for GUPI120-5 — B1370133

Name: OEM Goodman -0.35" WC NO Pressure Switch for GUPI120-5 — B1370133
Brand: Goodman
SKU: GOODMAN-B1370133
Price: 25.95 USD
Availability: InStock

SKU: GOODMAN-B1370133 Brand: Goodman

$25.95 $34.95

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The Goodman B1370133 is a genuine OEM air-proving pressure switch rated at -0.35" WC, normally open (NO), for the Goodman GUPI120-5 furnace. It confirms the inducer/draft motor has established proper negative pressure before the control board allows ignition. If the switch never closes, the furnace won't light; if it fails closed, it defeats a key safety interlock. Symptoms of a bad switch include no ignition, short cycling, or a furnace that runs the inducer but never fires.

Specifications

Set point: -0.35 in. WC (water column)
Configuration: Normally open, closes on negative pressure
Ports: Single-port draft sensing
OEM part number: B1370133
Brand: Goodman
Fits model: GUPI120-5 furnace

OEM vs. Generic

The OEM B1370133 is calibrated to Goodman's exact -0.35" WC set point, which is critical — an incorrectly rated switch can cause nuisance lockouts or bypass a safety. A generic equivalent can save money if the pressure rating, port count, and terminal style match precisely; otherwise choose OEM.

Installation Difficulty

Easy (2/5). Kill power, note and transfer the rubber sensing hose, move the two electrical terminals, and remove the mounting screws. About 20 minutes. Verify the new switch actuates by checking inducer draft at startup.

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 -0.35" WC NO Pressur...

$25.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman GUPI120-5 — B1370133?

Yes. This is the factory-specified OEM pressure switch for the Goodman GUPI120-5 — B1370133. 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 GUPI120-5 — B1370133?

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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