What are the specs for this Limit Switch?

The correct replacement for Goodman model AMH80804BXBA — 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 AMH80804BXBA — 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 Temp Control for AMH80804BXBA — 20162904

Name: OEM Goodman Primary Limit Temp Control for AMH80804BXBA — 20162904
Brand: Goodman
SKU: GOODMAN-5567
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-5567 Brand: Goodman

$35.95 $46.95

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Goodman 20162904 Primary Limit Temperature Control

The Goodman 20162904 is a factory OEM primary high-limit temperature control for Goodman and Amana gas furnaces, including the AMH80804BXBA. Mounted on the heat exchanger bulkhead, it monitors supply-plenum temperature and shuts off the burners if the furnace overheats — typically caused by a dirty filter, weak blower, or closed registers. It is an automatic-reset control that closes again once temperature returns to a safe range.

Specifications

Type: Primary high-limit temperature control (automatic reset)
Function: Opens gas/ignition circuit on plenum overheat
Mount: Bracket-mounted disc/bimetal sensor
Terminals: 1/4" quick-connect spade
Fits: Goodman/Amana furnaces (AMH80804BXBA and related)
OEM part number: 20162904

OEM vs. Generic

Primary limits are matched to a specific trip temperature and probe length for each furnace model. The OEM 20162904 guarantees the correct setpoint and fit. A generic limit with the wrong rating can cause short-cycling on limit or fail to protect the heat exchanger — a safety-critical difference.

Install Difficulty

Moderate (2/5). Shut off power and gas, disconnect the two spade terminals, remove the mounting screws, and transfer the new control to the same position. About 20 minutes. After install, verify the blower and filter are clean so the limit is not masking an airflow problem.

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 Temp C...

$35.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman AMH80804BXBA — 20162904?

Yes. This is the factory-specified OEM limit switch for the Goodman AMH80804BXBA — 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 AMH80804BXBA — 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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