Goodman 10123537 Manual Reset Limit Switch 190F

Product Description

The GOODMAN 10123537 is a manual reset limit switch rated at 190 degrees F, used in gas furnaces and air handlers to protect heat exchangers and other components from overtemperature conditions. When the sensing element reaches the trip threshold, the switch opens the control circuit and holds it open until a technician manually resets it at the unit. This design prevents the system from restarting automatically after a high-limit event, making it a safety-critical component in forced-air heating systems. Licensed HVAC technicians handle installation and replacement of this switch as part of routine service or fault diagnosis.

This limit switch is used in residential and light-commercial forced-air heating applications where a manual reset safety device is required at the 190 degrees F trip point. It is installed in the heat exchanger compartment or plenum area of a gas furnace or air handler. Typical scenarios include warranty replacement, field failure diagnosis, or scheduled preventive maintenance on older equipment. The switch is supplied by Wako Electronics and was catalogued under GOODMAN part 10123537 as an accessory-class component in the switches product family.

Key Features

• Manual reset operation requires technician intervention after a high-limit trip, preventing automatic restart
• 190 degrees F trip temperature provides defined overtemperature protection for the heat exchanger circuit
• Accessory-class switch designed for integration into furnace or air handler control wiring
• Sourced from Wako Electronics, catalogued under GOODMAN part number 10123537
• Country of origin: Mexico

Compatibility

Designed as an OEM-style manual reset limit switch replacement for residential and light-commercial gas furnaces and air handlers requiring a 190 degrees F rated safety limit device. No specific compatible model numbers were provided in the product data.

Installation Notes

Installation and replacement of furnace limit switches is performed by licensed HVAC technicians. Always shut off electrical power to the unit at the disconnect and set the gas valve to the off position before servicing any limit switch. After installation, verify wiring connections are secure and test the manual reset function before returning the system to operation. Follow applicable local codes and manufacturer service documentation when replacing safety-critical control components.

Technical Specifications

• Trip Temperature: 190 degrees F
• Reset Type: Manual
• Product Class: Switches
• Unit Type: Accessory
• Country of Origin: Mexico
• Vendor: Wako Electronics

Standard Information

• Brand: GOODMAN
• Manufacturer Part Number: 10123537