What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH80603ANBA — 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 AMH80603ANBA — 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 for AMH80603ANBA — 20162904

Name: OEM Goodman Primary Limit Temperature Control for AMH80603ANBA — 20162904
Brand: Goodman
SKU: GOODMAN-5085
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-5085 Brand: Goodman

$35.95 $47.95

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The Goodman 20162904 Primary Limit Temperature Control is the genuine OEM high-limit safety switch for the AMH80603ANBA 60,000 BTU, 80% AFUE gas furnace and compatible Goodman/Amana models. Mounted on the heat exchanger bulkhead, this normally-closed thermal switch continuously monitors supply-air temperature and cuts power to the gas valve if the furnace overheats — protecting the heat exchanger and your home from an unsafe condition.

Specifications

Type: Primary high-limit, auto-reset thermal switch
Function: Opens on temperature rise to de-energize gas valve
Mounting: Bracket-mount on furnace vestibule/heat exchanger panel
OEM Part #: 20162904
Fits: AMH80603ANBA and related Goodman/Amana 80% furnaces

OEM vs. Generic

The genuine OEM control is calibrated to the exact trip temperature specified for this furnace's heat exchanger. Generic or aftermarket limits may carry a different set point, leading to nuisance lockouts or — worse — a failure to trip. For a safety component, we recommend the factory OEM part.

Install Difficulty

Rating: Moderate (2/5). Two mounting screws and two spade connectors. Always shut off power and gas before servicing. If your limit is tripping repeatedly, diagnose airflow (dirty filter, blocked returns, failing blower) before replacing.

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 AMH80603ANBA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH80603ANBA — 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 AMH80603ANBA — 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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