What are the specs for this Limit Switch?

The correct replacement for Goodman model GMH950904CXAB — 20162904 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 GMH950904CXAB — 20162904.

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 Primary Limit Switch for GMH950904CXAB — 20162904

Name: OEM Goodman Primary Limit Switch for GMH950904CXAB — 20162904
Brand: Goodman
SKU: GOODMAN-11312
Price: 44.95 USD
Availability: InStock

SKU: GOODMAN-11312 Brand: Goodman

$44.95 $58.95

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Goodman 20162904 Primary Limit Temperature Control

The Goodman 20162904 is a genuine OEM primary high-limit temperature control for the GMH950904CXAB gas furnace and compatible Goodman/Amana models. This safety switch monitors heat-exchanger and plenum temperature; if airflow is restricted (dirty filter, failed blower, closed dampers) and temperature exceeds the factory trip point, the limit opens and shuts off the gas valve to prevent overheating and heat-exchanger damage. It automatically resets once the furnace cools.

Part Number: 20162904
Function: Primary high-limit / overheat protection
Reset: Automatic (temperature-actuated)
Category: Limit Switch / Safety Control
Primary Fit: GMH950904CXAB

OEM vs. Generic

The genuine Goodman limit is calibrated to the exact trip and reset temperatures this furnace design requires, and its mounting flange and probe length match the factory opening. Generic limits with the wrong set point can nuisance-trip (short cycling) or, worse, fail to open when needed. For a life-safety control, OEM calibration matters.

Installation Difficulty

Easy–Moderate (2/5). Shut off power and gas, remove two mounting screws, disconnect the two wire leads, and swap in the new limit. Restore power and confirm the furnace completes a full heat cycle without tripping. Roughly 20–30 minutes.

De-energize the furnace before servicing. If the limit trips repeatedly after replacement, investigate airflow — do not bypass the switch.

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 Primary Limit Switch...

$44.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GMH950904CXAB — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman GMH950904CXAB — 20162904. 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 GMH950904CXAB — 20162904?

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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