Carrier HH19ZA196 L195-80F Limit Switch

Description

Carrier HH19ZA196 L195-80F Limit Switch Overview

The Carrier HH19ZA196 is an OEM replacement high-limit switch designed to protect furnaces from dangerous overheating conditions. Designated L195-80F, this limit switch is engineered to open at 195°F, interrupting the burner circuit when supply air temperatures exceed safe operating thresholds. It automatically resets once temperatures fall back within the safe operating range, providing reliable, repeatable protection for residential and light-commercial heating systems.

Key Features

• OEM Carrier replacement part — engineered for direct fit and reliable performance
• Opens (trips) at 195°F to shut down the burner and prevent heat exchanger damage
• 80°F differential — resets automatically as the furnace cools to a safe temperature
• Protects heat exchangers, blower components, and connected ductwork from thermal damage
• Designed for use in Carrier furnaces requiring an L195-80F rated limit switch
• Durable construction built to withstand repeated thermal cycling

Specifications

• SKU: HH19ZA196
• Brand: Carrier
• Type: High-Limit Switch
• Model Designation: L195-80F
• Opens At: 195°F
• Differential: 80°F
• Application: Carrier furnaces and air handlers

Application

The HH19ZA196 limit switch is a critical safety component in Carrier forced-air furnaces. When the furnace overheats — due to a dirty filter, blocked airflow, or a failed blower — the limit switch opens the control circuit, shutting off the gas valve and burner to prevent equipment damage or fire hazard. Always verify compatibility with your specific Carrier model before installation.