Description
Goodman 10123537SP 140°F Manual Reset Limit Switch
The Goodman 10123537SP is an OEM replacement manual reset (M/R) limit switch engineered to protect your furnace or heating system from dangerous overheating conditions. Rated to trip at 140°F, this limit switch acts as a critical safety device — cutting power to the burner or heat source when temperatures exceed the set point, and requiring a manual reset before the system can resume normal operation.
Key Features
- OEM Goodman replacement part — ensures proper fit and reliable performance
- 140°F trip temperature for precise high-limit protection
- Manual reset (M/R) design requires deliberate operator action before restart, preventing repeated unsafe cycling
- Designed for use in Goodman and compatible heating systems
- Helps maintain system safety and extend equipment life
Why Manual Reset?
Unlike automatic reset limit switches, a manual reset switch requires a technician or operator to physically reset the device after a trip event. This added safety step ensures the root cause of the overheating condition is identified and corrected before the system is returned to service — reducing the risk of equipment damage or fire hazard.
Application
- Replacement limit switch for Goodman furnaces and heating equipment
- Suitable for residential and light commercial HVAC applications
- Always verify compatibility with your specific Goodman model before installation
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