What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH80703AXCC — 20162906 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 AMH80703AXCC — 20162906.

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 M4 Primary Limit Switch for AMH80703AXCC — 20162906

Name: OEM Goodman M4 Primary Limit Switch for AMH80703AXCC — 20162906
Brand: Goodman
SKU: GOODMAN-5329
Price: 26.95 USD
Availability: InStock

SKU: GOODMAN-5329 Brand: Goodman

$26.95 $34.95

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Goodman 20162906 M4 Primary Limit Switch

The Goodman 20162906 is a genuine OEM M4 primary high-limit switch for the AMH80703AXCC gas furnace and other compatible Goodman and Amana models. Mounted on the heat-exchanger bulkhead, this primary limit continuously monitors supply-plenum temperature and opens the control circuit to shut off the burners if the furnace overheats — typically from restricted airflow such as a clogged filter, a failed blower, or closed registers. It protects the heat exchanger and downstream ductwork from thermal damage and is a foundational safety control in the furnace's sequence of operation.

Specifications

OEM Part Number: 20162906
Type: M4 primary high-limit switch
Function: Normally closed, opens on over-temperature (auto reset)
Mounting: Heat-exchanger / plenum bracket
Fits: Goodman / Amana AMH80703AXCC and compatible models

OEM vs. Generic

The OEM 20162906 is calibrated to the precise open/close temperatures and disc size Goodman specifies for this model. A miscalibrated generic can nuisance-trip on normal cycles or, worse, fail to open during a genuine overheat. As a safety-critical component, this is a part to buy genuine.

Install Difficulty

Easy (2/5). Disconnect power, unplug the terminals, remove the two mounting screws, and install the new limit in the same orientation. If the old limit was tripping, correct the underlying airflow problem before restoring heat.

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 M4 Primary Limit Swi...

$26.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH80703AXCC — 20162906?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH80703AXCC — 20162906. 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 AMH80703AXCC — 20162906?

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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