What are the specs for this Door Switch?

The correct replacement for Goodman model GMPV125-3 — 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 GMPV125-3 — 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 Door Safety Switch with Wires for GMPV125-3 — B1370820

Name: OEM Goodman Door Safety Switch with Wires for GMPV125-3 — B1370820
Brand: Goodman
SKU: GOODMAN-12175
Price: 40.95 USD
Availability: InStock

SKU: GOODMAN-12175 Brand: Goodman

$40.95 $53.95

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Genuine Goodman B1370820 Blower Door Safety Switch

The B1370820 is a factory-original blower-compartment door interlock safety switch designed for Goodman GMPV125-3 packaged gas/electric units and compatible Amana models. This normally-open switch cuts power to the blower and control circuit whenever the access panel is removed, preventing the furnace from operating with the door off. It ships pre-terminated with color-coded pigtail wires for a plug-and-play replacement — no crimping required.

Specifications

Type: SPST normally-open door interlock switch
Configuration: Pre-wired with lead wires and connectors
Mounting: Snap/screw-mount to blower deck bracket
Fits: Goodman GMPV125-3 packaged units and select Amana furnaces
OEM Part Number: B1370820

OEM vs. Generic

The OEM B1370820 arrives with the correct wire gauge, connector style, and actuator travel matched to the Goodman door bracket, ensuring reliable make/break contact. A generic door switch offers a lower-cost alternative but may require re-terminating leads or adjusting the mounting position. For safety-critical interlocks, the OEM part is strongly recommended.

Install Difficulty

Easy (1/5) — Disconnect power, remove the two mounting screws, transfer the wire connectors, and re-seat. Typical replacement time is under 15 minutes. Always shut off power at the disconnect before servicing.

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 Safety Switch w...

$40.95

Frequently Asked Questions

Does this Door Switch fit my Goodman GMPV125-3 — B1370820?

Yes. This is the factory-specified OEM door switch for the Goodman GMPV125-3 — 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 GMPV125-3 — 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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