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Small rectangular HVAC limit switch with two wire terminals and a 7-inch probe

Goodman

Goodman B1370919 Limit Switch 170F 7"Lg

SKU CH-50WC-088MZ

A Goodman limit switch rated 170F with a 7-inch probe for HVAC safety control

  • Opens at 170°F to prevent overheating
  • Seven-inch probe reaches deep into ductwork
  • Goodman brand ensures OEM fit and reliability
  • Listed by manufacturer in 2023 as current production
  • Direct-from-manufacturer shipping reduces handling steps

Direct replacement part

The Goodman B1370919 limit switch is a safety component for compatible HVAC systems. It opens the circuit when the temperature reaches 170F to protect the furnace from overheating. The seven-inch probe length is designed for specific mounting locations. This new part restores factory safety operation.

Verify probe length and trip temperature

Confirm that your furnace requires a 170F cut-out and a seven-inch probe before ordering. Cross-reference the B1370919 number with your unit’s wiring diagram or service manual. Ensure the mounting orientation matches the original installation. Incorrect specifications will prevent proper high-limit protection.

Thermal response and electrical load

The switch interrupts power at the rated 170F threshold during normal over-temperature events. It operates passively with no fan or active cooling required. Power draw is limited to the control circuit current flowing through the contacts. The device adds no audible noise to the system.

Highlights

  • Opens at 170°F to prevent overheating
  • Seven-inch probe reaches deep into ductwork
  • Goodman brand ensures OEM fit and reliability
  • Listed by manufacturer in 2023 as current production
  • Direct-from-manufacturer shipping reduces handling steps

Specifications

BrandGOODMAN

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