What are the specs for this Auxiliary Limit Switch?

The correct replacement for Goodman model AMH81405DNAC — B1370155 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 AMH81405DNAC — B1370155.

What symptoms indicate I need a new auxiliary limit switch?

Common symptoms that indicate you need a new auxiliary limit switch include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

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Goodman

OEM Goodman 120°F Auxiliary Limit Switch for AMH81405DNAC — B1370155

Name: OEM Goodman 120°F Auxiliary Limit Switch for AMH81405DNAC — B1370155
Brand: Goodman
SKU: GOODMAN-6153
Price: 11.96 USD
Availability: InStock

SKU: GOODMAN-6153 Brand: Goodman

$11.96 $15.95

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OEM Goodman B1370155 Auxiliary Limit Switch (120°F)

The Goodman B1370155 is a genuine OEM auxiliary high-limit switch rated at 120°F for AMH81405DNAC gas furnaces. Typically mounted near the blower compartment, this auto-reset limit guards against heat buildup from restricted airflow — a dirty filter, closed dampers, or a failing blower — by interrupting the heating circuit until temperatures return to a safe range. It is a direct-fit replacement across compatible Goodman and Amana models.

Category: Limit Switch
OEM Part Number: B1370155
Trip Temperature: 120°F
Type: Auxiliary / secondary high limit
Fits: AMH81405DNAC and compatible Goodman/Amana furnaces

OEM vs. Generic

The genuine OEM B1370155 is factory-calibrated to the 120°F trip point and mounting footprint this furnace expects. Generic substitutes with mismatched temperatures or terminal layouts can nuisance-trip or fail to protect the cabinet. OEM ensures the furnace's airflow-safety logic works as designed.

Installation Difficulty

Easy to Moderate — cut power, remove two screws and the wire terminals, and install the replacement in the same orientation. Confirm airflow is corrected so the new limit doesn't trip again.

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 120°F Auxiliary Limi...

$11.96

Frequently Asked Questions

Does this Auxiliary Limit Switch fit my Goodman AMH81405DNAC — B1370155?

Yes. This is the factory-specified OEM auxiliary limit switch for the Goodman AMH81405DNAC — B1370155. 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 auxiliary limit switch on my Goodman AMH81405DNAC — B1370155?

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 auxiliary limit switch?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this auxiliary 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 auxiliary 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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