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Goodman

OEM Goodman 150°F Primary Limit Switch for DHS80704BXA — B1370198

SKU: GOODMAN-9476 Brand: Goodman
$18.95 $24.95

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Texas CMBL #19328542014
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Goodman B1370198 Primary Limit Switch (150°F)

The B1370198 is a genuine Goodman primary high-limit switch built as an exact-fit replacement for the Goodman DHS80704BXA gas furnace. Mounted on the heat-exchanger vestibule, this normally-closed thermal control continuously senses plenum temperature and interrupts the burner circuit if the furnace exceeds its 150°F set point. It is the front-line overheat protection that keeps the heat exchanger from operating outside its rated temperature during low-airflow or high-static conditions.

When a primary limit fails open or trips prematurely, the classic symptoms are a furnace that lights, runs briefly, then shuts down and repeats — or one that produces no heat at all. Replacing a fatigued limit restores reliable, safe cycling.

Specifications

  • Trip temperature: 150°F (open on rise)
  • Function: Primary high-limit safety cutout
  • Contacts: Normally closed, automatic reset
  • Fits: Goodman DHS80704BXA and related furnace platforms
  • Equipment type: Gas furnace
  • OEM part number: B1370198

OEM vs. Generic

Choosing the genuine Goodman OEM switch guarantees the correct 150°F calibration and mounting geometry. Universal aftermarket limits frequently use a different trip point or bracket, which can cause nuisance trips or leave the heat exchanger under-protected. On a life-safety control, OEM is the right call.

Installation Difficulty

Rating: Easy (2/5). A straightforward two-screw, two-terminal replacement, about 15–25 minutes. Cut gas and electrical power first. Given its safety role, have a qualified technician confirm proper airflow and normal furnace operation afterward.

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 Switch fit my Goodman DHS80704BXA — B1370198?
Yes. This is the factory-specified OEM limit switch for the Goodman DHS80704BXA — B1370198. 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 DHS80704BXA — B1370198?
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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Mike Rivera
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