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Goodman

OEM Goodman 150F Primary Limit Switch for GMH951155DXAC — 20162903

SKU: GOODMAN-11499 Brand: Goodman
$8.95 $11.99

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Texas CMBL #19328542014
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Goodman 20162903 Primary Limit Switch (150°F)

The 20162903 is a genuine OEM primary high-limit switch rated at 150°F for the Goodman GMH951155DXAC 95% AFUE two-stage furnace. Mounted on the heat exchanger or blower deck, it continuously monitors supply-air temperature and opens the gas circuit if the furnace overheats due to a dirty filter, blocked ductwork, or blower failure. As the primary limit, it is the furnace's main line of thermal protection.

Specifications

  • Type: Primary high-limit switch (auto reset)
  • Trip Temperature: 150°F
  • Function: Normally closed, opens on over-temperature
  • Fit: Goodman/Amana GMH951155DXAC and compatible 95% furnaces
  • OEM Part Number: 20162903

OEM vs. Generic

The genuine Goodman 150°F switch trips at the precise temperature this furnace's control logic expects, preventing both nuisance lockouts and unsafe overheating. Generic limits with approximate trip points can shorten heat-exchanger life or cause erratic cycling. For accurate protection, choose OEM.

Installation Difficulty

Easy (1/5). Disconnect power, remove two screws and the spade connectors, and install the replacement in the same orientation. If the new limit keeps tripping, correct the airflow restriction before returning the furnace to service.

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

Frequently Asked Questions

Does this Limit Switch fit my Goodman GMH951155DXAC — 20162903?
Yes. This is the factory-specified OEM limit switch for the Goodman GMH951155DXAC — 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 GMH951155DXAC — 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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Mike Rivera
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