What are the specs for this Pressure Switch?

The correct replacement for Goodman model GMNT120-5 — A3468601 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 GMNT120-5 — A3468601.

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 3/16 in ID Pressure Switch Tubing for GMNT120-5 — A3468601

Name: OEM Goodman 3/16 in ID Pressure Switch Tubing for GMNT120-5 — A3468601
Brand: Goodman
SKU: GOODMAN-11749
Price: 2.95 USD
Availability: InStock

SKU: GOODMAN-11749 Brand: Goodman

$2.95 $3.85

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The Goodman A3468601 Pressure Switch Tubing is a genuine OEM 3/16 inch ID silicone/rubber hose that connects the draft-inducer pressure tap to the pressure switch on the GMNT120-5 gas furnace. This small hose carries the vacuum signal that proves proper venting before the burners fire. When the tubing cracks, hardens, kinks, or fills with condensate, the pressure switch fails to close and the furnace locks out with a no-ignition fault — even though the inducer is running fine.

Specifications

Inside diameter: 3/16 in (0.1875 in)
Function: Draft/pressure sensing line to the pressure switch
Material: Heat-resistant flexible tubing
Fit: Goodman/Amana GMNT120-5 and compatible furnaces
Application: Inducer-to-pressure-switch connection

OEM vs. Generic

Genuine OEM A3468601 uses the correct 3/16 in ID and heat-rated material to seal tightly at both the inducer tap and switch port without collapsing under vacuum. Generic hose of the wrong durometer or diameter can slip, leak, or soften near the hot inducer, reintroducing the very fault you're trying to fix. At this price, OEM is the easy call.

Installation Difficulty

Very easy (DIY-friendly). Pull the old hose off both barbed fittings and push the new tubing on. Power off first, route the tubing so any condensate drains away from the switch, and confirm the switch clicks closed on inducer startup.

Compatible with GMNT120-5. Verify tubing ID and length before ordering.

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 3/16 in ID Pressure ...

$2.95

Frequently Asked Questions

Does this Pressure Switch fit my Goodman GMNT120-5 — A3468601?

Yes. This is the factory-specified OEM pressure switch for the Goodman GMNT120-5 — A3468601. 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 GMNT120-5 — A3468601?

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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