Goodman Primary Limit Switch 0130F00036SP 180F (Pink Dot)

Goodman / Amana 0130F00036SP Primary Limit Switch | 180°F Pink Dot OEM

The Goodman 0130F00036SP is a genuine factory-authorized primary limit switch designed for Goodman, Amana, and Janitrol gas furnaces. This Original Equipment Manufacturer (OEM) safety device is responsible for monitoring the temperature of the heat exchanger. If the system exceeds its safe operating temperature, the switch automatically opens to shut down the burners, preventing equipment damage and ensuring home safety.

This specific model is factory-calibrated to a 180°F (L180) trip point and is easily identified by its distinctive pink dot or pink color-coding on the ceramic insulator. As an auto-reset switch, it will typically close again once the heat exchanger cools back down to a safe range.

Compatibility & Cross-Reference

The 0130F00036SP is the current production standard and serves as a direct replacement for several legacy and equivalent part numbers.

• Replaces Part Numbers: 0130F00036, 0130F00036S, 42AM04
• Common Model Series: Frequently found in GDS80, GHS8, GMS8, GDS80403, and GDS80603 series 80% AFUE furnaces.
• Fitment Check: This switch is model-specific and must match the 180°F rating of your original part. Always verify your model and serial number before ordering.

Common Symptoms of a Faulty Limit Switch

If your furnace is experiencing the following issues, the primary limit switch may be failing or "tripping" due to an underlying airflow problem:

• Blower Runs Continuously: The indoor blower motor stays on while the burners remain off.
• Short Cycling: The furnace fires up but shuts down quickly before the thermostat is satisfied.
• Error Codes: The diagnostic LED on your control board flashes a specific code (usually 4 flashes) indicating an "Open High Limit Device."

Why Choose a Genuine Goodman OEM Switch?

• Precision Safety: Calibrated to the exact 180-degree threshold designed for your specific heat exchanger to prevent overheating.
• Durable Design: Built with high-temperature resistant materials to withstand thousands of heating cycles without drift.
• Direct Installation: Features the original mounting footprint and standard 1/4" male spade terminals for a fast replacement.

Shipping & Order Details

• Continental US Shipping: We provide reliable and prompt shipping rates for all orders delivered within the Continental United States.
• Authenticity Guaranteed: Shorty’s HVAC Supplies only stocks brand-new, genuine Goodman and Amana parts.

Technical Specifications