What are the specs for this Door Switch?

The correct replacement for Goodman model GUS075-3 Furnace — B1370819 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 GUS075-3 Furnace — B1370819.

What symptoms indicate I need a new door switch?

Common symptoms that indicate you need a new door switch include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

Is this door 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 Door Interlock Switch for GUS075-3 Furnace — B1370819

Name: OEM Goodman Door Interlock Switch for GUS075-3 Furnace — B1370819
Brand: Goodman
SKU: GOODMAN-13342
Price: 22.95 USD
Availability: InStock

SKU: GOODMAN-13342 Brand: Goodman

$22.95 $29.95

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Goodman B1370819 Blower Door Interlock Switch

The B1370819 is a genuine OEM Goodman door interlock safety switch, a direct-fit replacement for the GUS075-3 gas furnace. Mounted on the blower compartment, it de-energizes the furnace whenever the access panel is removed — preventing the burners and blower from running with the door off. A failed door switch is a common cause of a furnace that won't start at all.

Specifications

Type: Normally-open door interlock (SPST)
Function: Cuts 120V power when blower door is removed
Actuation: Plunger / lever, closes when door is seated
Fits: Goodman GUS075-3 furnace
OEM Part Number: B1370819
Terminals: 1/4 in. quick-connect

OEM vs. Generic

The OEM Goodman switch matches the exact plunger height and mounting bracket of the GUS075-3 cabinet, so the door seats and actuates reliably. Generic switches may sit too high or low, causing intermittent no-heat calls. As a safety interlock, OEM fit is worth the small premium.

Installation Difficulty: Easy

One or two screws and two spade terminals. Roughly 15–20 minutes for a DIYer. Cut power at the breaker before opening the cabinet, and verify the plunger fully engages when the door is reinstalled.

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 Door Interlock Switc...

$22.95

Frequently Asked Questions

Does this Door Switch fit my Goodman GUS075-3 Furnace — B1370819?

Yes. This is the factory-specified OEM door switch for the Goodman GUS075-3 Furnace — B1370819. 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 door switch on my Goodman GUS075-3 Furnace — B1370819?

Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.

What symptoms mean I need a new door switch?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this door 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 door 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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