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Goodman

OEM Goodman Primary Limit High-Temp Control for AMH80604BXBC — 20162904

SKU: GOODMAN-20162904 Brand: Goodman
$35.95 $47.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Goodman 20162904 Primary Limit Temperature Control is the genuine OEM high-limit switch for the AMH80604BXBC 80% AFUE gas furnace. Mounted on the heat exchanger bulkhead, it continuously senses supply-air temperature and opens the burner circuit if the furnace overheats — typically caused by a dirty filter, blocked ductwork, or a failed blower. It closes automatically once temperatures return to normal.

This is a critical overheat-protection component. A faulty or out-of-spec primary limit is a common cause of short-cycling and no-heat calls, so replacing it with the correctly calibrated OEM part restores reliable, safe operation.

Specifications

  • Type: Primary high-limit temperature control
  • Reset: Automatic (self-resetting on temperature)
  • Mounting: Bracket / flange to heat-exchanger bulkhead
  • Terminals: 1/4 in. spade connectors
  • OEM Part Number: 20162904
  • Fits: Goodman / Amana AMH80604BXBC and compatible furnaces

OEM vs. Generic

The 20162904 is factory-set to this furnace's specific cutout and cut-in temperatures and matches the OEM bracket geometry for correct sensor placement. Generic limits with different trip points or brackets can misread air temperature, causing nuisance trips or inadequate protection. OEM is recommended for this safety device.

Installation Difficulty

Easy (1/5). Disconnect power, unplug the two spade wires, remove the mounting screws, and install the replacement in the same orientation. About 15 minutes for most DIYers.

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

Frequently Asked Questions

Does this Limit Control fit my Goodman AMH80604BXBC — 20162904?
Yes. This is the factory-specified OEM limit control for the Goodman AMH80604BXBC — 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 control on my Goodman AMH80604BXBC — 20162904?
Difficulty: Advanced (1–2 hrs)
Step 1: Turn off breaker. Step 2: PHOTOGRAPH all wire connections before touching anything. Step 3: Label each wire with tape. Step 4: Disconnect all wires, remove old board. Step 5: Mount new board, reconnect all wires matching your photo exactly. Step 6: Restore power and test all modes. Exact part number match is critical.
My HVAC system is completely dead. What could be wrong?
Completely dead HVAC (no LED on board) = failed control board or blown fuse. Check board fuse first (3A or 5A, costs $1–$5). If fuse is good and board has power but no LED, board is dead. Always photograph wiring before replacing.
Is this limit control 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 control?
OEM essential. Control boards are model-specific with precise firmware and connector layouts. Aftermarket boards rarely match all functions and can cause intermittent failures or safety issues. Always match the exact OEM part number.
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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Mike Rivera
HVAC Parts Specialist — Online