What are the specs for this Limit Switch?

The correct replacement for Goodman model GMTH090-5 Furnace — B1370195 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 GMTH090-5 Furnace — B1370195.

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 300F Primary Limit Switch for GMTH090-5 Furnace — B1370195

Name: OEM Goodman 300F Primary Limit Switch for GMTH090-5 Furnace — B1370195
Brand: Goodman
SKU: GOODMAN-B1370195
Price: 10.95 USD
Availability: InStock

SKU: GOODMAN-B1370195 Brand: Goodman

$10.95 $14.29

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The Goodman B1370195 Primary Limit Switch is a genuine OEM high-limit safety control engineered for the Goodman GMTH090-5 gas furnace and compatible GMTH-series models. This normally-closed thermal cutout monitors heat-exchanger and plenum temperature, opening the circuit to shut off the gas valve and burners if the furnace overheats — protecting your equipment and home from unsafe operating conditions.

Specifications

Trip point: 300°F (opens on temperature rise)
Type: Primary high-limit thermal switch
Action: Normally closed (SPST)
Fit: Goodman GMTH090-5 and compatible furnaces
OEM Part Number: B1370195

OEM vs. Generic

Our genuine OEM B1370195 is manufactured to Goodman's exact trip temperature and bracket geometry, guaranteeing correct safety response and a bolt-in fit. Generic limit switches often trip at the wrong temperature, causing nuisance lockouts or failing to protect the furnace. For a safety-critical component, OEM is the smart choice.

Installation Difficulty

Easy (1/5) — Two mounting screws and two spade terminals. Always shut off power and gas before servicing. If you are not comfortable working near the burner assembly, hire a licensed HVAC technician.

Restore your GMTH090-5 furnace to safe, reliable operation with the correct factory limit switch.

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 300F Primary Limit S...

$10.95

Frequently Asked Questions

Does this Limit Switch fit my Goodman GMTH090-5 Furnace — B1370195?

Yes. This is the factory-specified OEM limit switch for the Goodman GMTH090-5 Furnace — B1370195. 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 GMTH090-5 Furnace — B1370195?

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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