Goodman B1370195 Primary Limit Switch L300-30F

Description

Goodman B1370195 Primary Limit Switch L300-30F Overview

The Goodman B1370195 is an OEM primary limit switch designed to protect your furnace from overheating conditions. Rated L300-30F, this safety device opens the circuit at 300°F and automatically resets at 270°F (30°F differential), shutting down the burner before heat exchanger temperatures reach damaging levels. It is a direct factory replacement part engineered to meet the original equipment specifications of compatible Goodman and Amana furnace models.

Key Features

• OEM Goodman replacement primary limit switch
• L300-30F rating — opens at 300°F, auto-resets at 270°F
• 30°F fixed differential for reliable, repeatable operation
• Automatic reset design — restores normal operation once temperatures fall within safe range
• Protects heat exchanger and furnace components from thermal damage
• Direct drop-in replacement for compatible Goodman and Amana furnace models
• Manufactured to OEM specifications for dependable fit and performance

Application

This primary limit switch is a critical safety component in gas furnaces. When the supply air temperature rises above the rated set point — due to restricted airflow, a dirty filter, or a blower issue — the limit switch opens the control circuit, disabling the burner. Once the furnace cools to the reset temperature, the switch automatically closes and normal operation resumes. Replacing a faulty or tripped limit switch with the correct OEM part ensures safe, code-compliant furnace operation.

Specifications

• SKU: B1370195
• Brand: Goodman
• Type: Primary Limit Switch
• Rating: L300-30F
• Open Temperature: 300°F
• Reset Temperature: 270°F (automatic reset)
• Differential: 30°F
• Part Type: OEM Replacement