What are the specs for this Door Switch?

The correct replacement for Goodman model DMS80905CNA — 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 DMS80905CNA — 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.

IMAGE COMING SOON

Goodman

OEM Goodman Blower Door Safety Switch w/ Wires for DMS80905CNA — B1370820

Name: OEM Goodman Blower Door Safety Switch w/ Wires for DMS80905CNA — B1370820
Brand: Goodman
SKU: GOODMAN-9614
Price: 54.95 USD
Availability: InStock

SKU: GOODMAN-9614 Brand: Goodman

$54.95 $72.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Goodman B1370820 Blower Door Safety Switch (with Wires)

This genuine OEM Goodman B1370820 blower door safety switch, supplied complete with its wiring harness, is the interlock control for the Goodman DMS80905CNA gas furnace and many compatible Goodman/Amana models. Also called a door interlock switch, it de-energizes the furnace whenever the blower-compartment panel is removed, so the burners and blower cannot run with the door open. A failed door switch is a common cause of a completely dead furnace that shows no power or ignition.

Specifications

Type: blower door interlock safety switch
Includes: pre-attached wire leads (plug-and-play harness)
Function: cuts furnace power when access panel is removed
Fits: Goodman DMS80905CNA and compatible furnaces
OEM Part Number: B1370820

OEM vs. Generic

The OEM B1370820 arrives with the correct connector and wire leads already installed, so it drops straight into the Goodman harness with no splicing or terminal crimping. Generic switches often require you to cut and re-wire, introducing failure points on a code-required safety interlock. The genuine part ensures a proper, reliable connection.

Installation Difficulty

Easy to Moderate — about 10–15 minutes. Turn off electrical power, remove the blower panel, unclip the old switch from its bracket, unplug the harness connector, and snap in the replacement. Route the new wires along the original path and reconnect. If the furnace still won't power up, have a licensed HVAC technician check the low-voltage circuit and control board.

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...

$54.95

Frequently Asked Questions

Does this Door Switch fit my Goodman DMS80905CNA — B1370820?

Yes. This is the factory-specified OEM door switch for the Goodman DMS80905CNA — 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 DMS80905CNA — 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.

Menu