What are the specs for this Door Switch?

The correct replacement for Goodman model GSU080-4 — B1370820 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 GSU080-4 — B1370820.

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 Blower Door Switch w/ Wires for GSU080-4 — B1370820

Name: OEM Goodman Blower Door Switch w/ Wires for GSU080-4 — B1370820
Brand: Goodman
SKU: GOODMAN-13009
Price: 40.95 USD
Availability: InStock

SKU: GOODMAN-13009 Brand: Goodman

$40.95 $52.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

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Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman B1370820 Door Switch is a genuine OEM blower-compartment interlock switch with pre-attached wire leads, built for GSU080-4 gas furnaces. This safety interlock cuts power to the furnace whenever the blower access panel is removed, preventing the unit from running with the door open — a code-required protection against electrical shock and unsafe combustion airflow.

Specifications

OEM Part Number: B1370820
Type: Blower-door safety interlock switch
Configuration: Plunger switch with factory wire leads
Function: Opens power circuit when access panel is removed
Compatible Model: Goodman GSU080-4 furnace
Includes: Switch and pre-terminated wiring

OEM vs. Generic

This factory-original Goodman assembly ships with the correct wire length, connectors, and plunger travel to fit the GSU080-4 blower door bracket exactly. Generic door switches frequently require splicing, re-crimping, or bracket modification, and a mismatched plunger height can leave the furnace unable to start even with the door closed. OEM means true plug-and-play.

Installation Difficulty

Easy–Moderate (2 of 5). Shut off power, note the existing wire routing, disconnect the leads, unscrew the switch from its bracket, and install the replacement — matching the plunger position so it depresses fully when the panel is seated. About 20 minutes. Verify the furnace only energizes with the door closed before finishing.

Genuine Goodman reliability. In stock and ready to ship.

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 Blower Door Switch w...

$40.95

Frequently Asked Questions

Does this Door Switch fit my Goodman GSU080-4 — B1370820?

Yes. This is the factory-specified OEM door switch for the Goodman GSU080-4 — B1370820. 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 GSU080-4 — B1370820?

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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