What are the specs for this Door Switch?

The correct replacement for Goodman model GMPV075-1.5 — 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 GMPV075-1.5 — 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 Safety Switch w/ Wires for GMPV075-1.5 — B1370820

Name: OEM Goodman Blower Door Safety Switch w/ Wires for GMPV075-1.5 — B1370820
Brand: Goodman
SKU: GOODMAN-12123
Price: 40.95 USD
Availability: InStock

SKU: GOODMAN-12123 Brand: Goodman

$40.95 $53.95

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Goodman B1370820 Blower Door Safety Switch (with Wires)

The Goodman B1370820 is a factory-original blower-compartment door interlock switch, pre-assembled with its wire harness, for the GMPV075-1.5 gas furnace and compatible Goodman/Amana models. 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 critical protection against electric shock and, on many systems, against operation with an unsafe combustion-air environment.

Specifications

Type: Normally-open plunger door interlock switch
Wiring: Supplied with factory wire leads (plug-and-play harness)
Function: Disables furnace when blower door is removed
Fits: Goodman GMPV075-1.5 and select GMP/GMPV series furnaces
Equipment: Gas furnace

OEM vs. Generic

This genuine OEM Goodman assembly arrives with the correct plunger length, mounting footprint, and pre-terminated wiring so it drops in without splicing or guesswork. Generic door switches frequently require adapting connectors and can misalign with the panel, defeating the interlock. The included harness makes the OEM part the fastest, safest install.

Installation Difficulty

Easy (2/5) — Remove the old switch (usually one or two screws), unplug or disconnect the leads, mount the new switch, and reconnect the supplied harness. About 15 minutes. Verify the plunger is depressed fully when the door is closed so the furnace energizes correctly.

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 Safety S...

$40.95

Frequently Asked Questions

Does this Door Switch fit my Goodman GMPV075-1.5 — B1370820?

Yes. This is the factory-specified OEM door switch for the Goodman GMPV075-1.5 — 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 GMPV075-1.5 — 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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