What are the specs for this Limit Switch?

The correct replacement for Goodman model GMH950905DXAD Furnace — 20162903 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 GMH950905DXAD Furnace — 20162903.

What symptoms indicate I need a new limit switch?

Common symptoms that indicate you need a new limit 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 limit 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 150°F Primary Limit Switch for GMH950905DXAD Furnace — 20162903

Name: OEM Goodman 150°F Primary Limit Switch for GMH950905DXAD Furnace — 20162903
Brand: Goodman
SKU: GOODMAN-11451
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-11451 Brand: Goodman

$8.95 $11.95

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Goodman 20162903 Primary Limit Switch (150°F)

The Goodman 20162903 is an OEM primary high-temperature limit switch rated to open at approximately 150°F, designed for the GMH950905DXAD gas furnace and related Goodman/Amana models. Mounted on the heat-exchanger vestibule, this normally-closed safety control monitors supply-air temperature and interrupts the gas valve if the furnace overheats — protecting the heat exchanger from cracking and preventing unsafe operating conditions. If your furnace short-cycles on the heat call or trips out after a few minutes, a failed limit switch is a frequent culprit.

Specifications

Part number: 20162903
Type: Primary high-limit, auto-reset
Trip temperature: ~150°F open
Contact configuration: Normally closed (opens on overheat)
Fits: Goodman GMH950905DXAD and related furnaces

OEM vs. Generic

Genuine OEM Goodman limit switches are calibrated to your furnace's exact trip temperature and mounting footprint. Generic limits with different set points or bracket geometry can nuisance-trip or fail to protect the heat exchanger. Because this is a safety control, we strongly recommend the OEM part.

Install Difficulty: Easy

Rated Easy. Two mounting screws and two spade terminals; swap with power disconnected. Verify correct operation and temperature rise after installation. Recommended for a qualified HVAC technician.

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 150°F Primary Limit ...

$8.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GMH950905DXAD Furnace — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman GMH950905DXAD Furnace — 20162903. 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 limit switch on my Goodman GMH950905DXAD Furnace — 20162903?

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 limit switch?

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

Is this limit 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 limit 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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