OEM Goodman 300°F Rollout Limit Switch for ADV80703BXA — B1370145

The Goodman B1370145 Rollout Limit Switch is a genuine OEM 300°F flame-rollout safety control for the ADV80703BXA gas furnace and other compatible Goodman and Amana models. Mounted near the burner assembly, this normally-closed switch instantly opens the control circuit and shuts off the gas valve if flames roll out of the burner box — a condition usually caused by a blocked flue, cracked heat exchanger, or failed inducer. It is one of the furnace's most important life-safety devices.

This switch trips at 300°F and is matched to the furnace's factory design. Using the correct trip temperature is critical: a mismatched switch can nuisance-trip or, worse, fail to protect against a genuine rollout event.

Specifications

• Part type: Rollout limit / flame-rollout safety switch
• Trip temperature: 300°F
• OEM part number: B1370145
• Brand: Goodman (also fits select Amana furnaces)
• Primary application: ADV80703BXA gas furnace
• Contact configuration: Normally closed, opens on over-temperature
• Fitment: Direct OEM replacement

OEM vs. Generic

Because this is a safety-critical control, the exact 300°F trip point and terminal style matter. Generic switches with a different setpoint can compromise burner-box protection or cause repeated lockouts. The OEM B1370145 guarantees the correct temperature rating and a plug-and-play electrical connection.

Installation Difficulty

Easy to moderate. With power off at the disconnect, remove the two spade connectors, unscrew the switch from its bracket, and install the replacement. Do not bypass a repeatedly tripping switch — diagnose the underlying cause (flue, heat exchanger, inducer). Professional diagnosis is recommended if the switch keeps opening.