What are the specs for this Limit Switch?

The correct replacement for Goodman model DMS80703ANA — B1370187 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 DMS80703ANA — B1370187.

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 160°F Primary Limit Switch for DMS80703ANA — B1370187

Name: OEM Goodman 160°F Primary Limit Switch for DMS80703ANA — B1370187
Brand: Goodman
SKU: GOODMAN-9578
Price: 10.95 USD
Availability: InStock

SKU: GOODMAN-9578 Brand: Goodman

$10.95 $14.49

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Goodman B1370187 Primary Limit Switch (160°F)

The Goodman B1370187 is a genuine OEM primary high-limit switch rated at 160°F, engineered for the DMS80703ANA gas furnace and compatible Goodman/Amana models. Positioned on the heat exchanger bulkhead in the supply-air stream, this auto-reset control is the furnace's main overheat protection. If supply temperature exceeds the setpoint — commonly from a dirty filter, closed registers, or a weak blower — the limit opens the gas valve circuit to shut down the burners and prevent heat-exchanger damage, then resets automatically as the plenum cools.

Specifications

Trip temperature: 160°F (opens on rise)
Reset type: automatic
Function: primary high-limit / heat exchanger overheat protection
Terminals: 1/4in quick-connect spade
Mounting: heat-exchanger bracket
Fits: Goodman DMS80703ANA and select 80% AFUE furnaces
OEM part number: B1370187

OEM vs. Generic

As the primary limit, this switch must match the furnace's certified trip temperature and insertion depth exactly. A generic switch with the wrong setpoint or probe length can short-cycle the furnace or, worse, allow the heat exchanger to overheat. OEM is the recommended choice for the primary safety limit.

Install Difficulty: Moderate (3/5)

Kill power, photograph the wiring, remove the two screws holding the switch to the heat-exchanger panel, transfer the spade terminals, and remount squarely so the sensing element sits in the airstream. Fifteen to twenty minutes; correcting that airflow restriction is the real fix if it kept tripping.

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 160°F Primary Limit ...

$10.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman DMS80703ANA — B1370187?

Yes. This is the factory-specified OEM limit switch for the Goodman DMS80703ANA — B1370187. 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 DMS80703ANA — B1370187?

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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