What are the specs for this Limit Switch?

The correct replacement for Goodman model GUN075-3B — 1370908S 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 GUN075-3B — 1370908S.

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 7 in. Limit Switch for GUN075-3B — 1370908S

Name: OEM Goodman 160°F 7 in. Limit Switch for GUN075-3B — 1370908S
Brand: Goodman
SKU: GOODMAN-1370908S
Price: 26.95 USD
Availability: InStock

SKU: GOODMAN-1370908S Brand: Goodman

$26.95 $34.95

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The Goodman 1370908S Limit Switch is a genuine OEM high-temperature safety control for the Goodman/Janitrol GUN075-3B gas furnace. This 160°F, 7-inch insert limit switch monitors heat-exchanger and plenum temperature and cuts power to the gas valve if the furnace overheats — a common result of a dirty filter, blocked ducts, or blower failure. A tripped or failed limit switch will cause short-cycling or no heat, so an exact-spec OEM replacement is essential for safe operation.

Specifications

OEM Part Number: 1370908S
Type: Thermal limit / safety switch
Trip Temperature: 160°F
Probe Length: 7 inches
Compatible Model: Goodman GUN075-3B
Brand: Goodman (fits Amana-branded equivalents)

OEM vs. Generic

The OEM Goodman limit switch is calibrated to the precise 160°F trip point and 7-inch probe length your GUN075-3B needs — critical, since the wrong temperature rating defeats the furnace's overheat protection. Generic switches may fit mechanically but vary in calibration. For a safety control, always match the OEM trip temperature and probe length.

Installation Difficulty

Easy (2/5). Shut off furnace power, remove the two mounting screws, disconnect the two spade terminals, and slide the new switch into the same slot. About 10–15 minutes with a nut driver. If the furnace keeps tripping the new limit, have a technician diagnose the underlying airflow issue.

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 7 in. Limit Sw...

$26.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GUN075-3B — 1370908S?

Yes. This is the factory-specified OEM limit switch for the Goodman GUN075-3B — 1370908S. 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 GUN075-3B — 1370908S?

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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