What are the specs for this Limit Switch?

The correct replacement for Goodman model OEM Goodman Primary Limit Temperature Control — 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 OEM Goodman Primary Limit Temperature Control — 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 Temperature Control — 20162904

Name: OEM Goodman Primary Limit Temperature Control — 20162904
Brand: Goodman
SKU: GOODMAN-5132
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-5132 Brand: Goodman

$35.95 $47.95

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The Goodman 20162904 Primary Limit Temperature Control is a genuine OEM high-limit switch for the Goodman/Amana AMH80603AXBA gas furnace. Mounted on the heat-exchanger bulkhead, this auto-reset control continuously senses supply-air temperature and opens the gas-valve circuit if the plenum overheats — typically caused by restricted airflow, a dirty filter, a failed blower, or closed registers. When temperatures return to normal, it automatically closes and allows heating to resume.

Specifications

Part Number: 20162904
Type: Primary (main) high-limit temperature control
Reset: Automatic (snap-disc)
Action: Normally closed, opens on over-temperature
Fits Model: AMH80603AXBA and compatible Goodman/Amana furnaces

OEM vs. Generic

The primary limit is factory-calibrated to a precise cut-out temperature matched to this furnace's heat exchanger and blower design. Installing an OEM 20162904 guarantees the correct trip point and disc length. Generic substitutes with incorrect calibration can cause short-cycling on limit or, worse, fail to protect the heat exchanger. For a safety control, OEM is strongly recommended.

Installation

Difficulty: Easy–Moderate (2/5). About 15–20 minutes. Disconnect power, remove the two mounting screws and the wire terminals, and install the replacement in the identical position and orientation. If the furnace was tripping on limit, correct the underlying airflow problem — replace the filter and verify blower operation — before restarting.

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 Temper...

$35.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman OEM Goodman Primary Limit Temperature Control — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman OEM Goodman Primary Limit Temperature Control — 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 OEM Goodman Primary Limit Temperature Control — 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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