What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH81005CXBB — 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 AMH81005CXBB — 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.

IMAGE COMING SOON

Goodman

OEM Goodman Primary Limit Temperature Control for AMH81005CXBB — 20162904

Name: OEM Goodman Primary Limit Temperature Control for AMH81005CXBB — 20162904
Brand: Goodman
SKU: GOODMAN-5971
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-5971 Brand: Goodman

$35.95 $46.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman 20162904 Primary Limit Temperature Control is the main high-limit safety switch for the Goodman/Amana AMH81005CXBB gas furnace and matching 80% AFUE models. Mounted on the heat exchanger bulkhead, this auto-reset control continuously senses supply-air temperature and interrupts the burner circuit if the furnace exceeds its safe operating limit — typically caused by restricted airflow, a failed blower, or a clogged filter.

Specifications

Type: Primary high-limit control, snap-disc (normally closed)
Reset: Automatic — recloses once temperature returns to normal range
Circuit: 24VAC control interrupt
Mount: Bulkhead / heat-exchanger panel with factory bracket
Fits: Goodman/Amana AMH81005CXBB and related furnaces
Part number: 20162904 (OEM)

OEM vs. Generic

Primary limits are factory-matched to each furnace's specific trip point and bracket geometry. The OEM 20162904 guarantees correct temperature calibration and a bolt-in fit. Universal snap-discs exist but require verifying trip temperature and often modifying the bracket — not recommended on a primary safety control.

Installation Difficulty

Easy–Moderate (2/5). Remove the burner/blower access panel, disconnect two low-voltage leads, and swap the bracketed control. Cut power at the breaker first. If the new limit trips, address the underlying airflow restriction rather than jumping 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 Temper...

$35.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH81005CXBB — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH81005CXBB — 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 AMH81005CXBB — 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.

Menu