What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH950453BXAF — 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 AMH950453BXAF — 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 Control for AMH950453BXAF — 20162904

Name: OEM Goodman Primary Limit Control for AMH950453BXAF — 20162904
Brand: Goodman
SKU: GOODMAN-20162904
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-20162904 Brand: Goodman

$35.95 $47.95

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The Goodman 20162904 Primary Limit Temperature Control is the main auto-reset high-limit switch for the AMH950453BXAF gas furnace. Mounted on the heat-exchanger bulkhead, it senses supply-air temperature and opens the control circuit if the furnace overheats — protecting the heat exchanger and blower from damage caused by dirty filters, closed registers, or blower failure. Unlike a manual-reset rollout switch, the primary limit resets automatically once temperatures return to a safe range, restoring normal heating.

Specifications

Type: Primary high-limit temperature control
Reset: Automatic (SPST)
Function: Supply-air overtemperature cutout
Fits: AMH950453BXAF and compatible Goodman/Amana furnaces
Mounting: OEM bracket with factory trip setpoint

OEM vs. Generic

This OEM control is calibrated to the precise open/close temperatures Goodman specified for this cabinet and heat exchanger, and it mounts on the original bracket with the correct insertion depth. Generic limits with a different setpoint or probe length can nuisance-trip on normal operation or, dangerously, fail to open when needed. For the primary safety limit, always use OEM.

Installation Difficulty

Easy–Moderate (2.5/5). A confident DIYer can complete this in about 20–30 minutes: cut power, remove the blower-door and control access, disconnect the two leads, remove the mounting screws, and install the replacement at the same depth. If the new limit trips repeatedly, correct the underlying airflow restriction rather than defeating 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 Contro...

$35.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH950453BXAF — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH950453BXAF — 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 AMH950453BXAF — 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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