What are the specs for this Limit Switch?

The correct replacement for Goodman model AMEH800805CNAB — 20162903 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 AMEH800805CNAB — 20162903.

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 150F Primary Limit Switch for AMEH800805CNAB — 20162903

Name: OEM Goodman 150F Primary Limit Switch for AMEH800805CNAB — 20162903
Brand: Goodman
SKU: GOODMAN-4436
Price: 8.95 USD
Availability: InStock

SKU: GOODMAN-4436 Brand: Goodman

$8.95 $11.95

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Goodman 20162903 Primary Limit Switch (150°F)

The Goodman 20162903 is a genuine OEM primary high-limit switch rated at 150°F, designed as a direct-fit replacement for the AMEH800805CNAB gas furnace and compatible Goodman/Amana models. This normally-closed thermal safety device continuously monitors plenum temperature and cuts power to the burners if the furnace overheats — a critical protection against heat-exchanger damage and fire.

A failed or nuisance-tripping limit switch is a common cause of short-cycling, no-heat calls, and repeated ignition lockouts. Replacing it with the correct OEM part restores reliable, code-compliant overheat protection.

Specifications

Part number: 20162903
Type: Primary high-limit / temperature cutoff
Trip temperature: 150°F
Contacts: Normally closed, auto-reset
Fit: Goodman/Amana AMEH800805CNAB and compatible furnaces

OEM vs. Generic

The OEM switch is factory-calibrated to the exact 150°F trip point and mounting footprint specified for your furnace. Generic universal limits often carry different trip temperatures or bracket dimensions, which can cause premature tripping or unsafe delayed shutoff. Because this is a life-safety component, we strongly recommend the OEM replacement.

Installation Difficulty

Easy to Moderate. The switch is typically secured by two screws with quarter-inch spade terminals. Always disconnect power at the breaker before servicing. A DIY-capable owner can swap it, but any recurring limit trips indicate a deeper airflow or heat-exchanger issue that a technician should diagnose.

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 150F Primary Limit S...

$8.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMEH800805CNAB — 20162903?

Yes. This is the factory-specified OEM limit switch for the Goodman AMEH800805CNAB — 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 AMEH800805CNAB — 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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