The B1370198 is a factory OEM auto / primary limit switch used in various Goodman, Amana, and Janitrol furnaces to monitor and regulate internal temperatures. It is often specified as an L150‑30 (150 °F open) switch with an automatic reset function over the 120‑150 °F range. When furnace temperature rises past the preset threshold, the B1370198 opens the circuit to prevent overheating; once the temperature falls, it automatically resets to resume normal operation.
Features:
- OEM‑Grade Performance & Fit: Made to original factory tolerances to ensure proper installation and dependable operation in compatible furnace models.
- 150 °F Open Point / 120–150 °F Auto Range: Opens at approximately 150 °F (30 °F differential) and resets automatically within the 120–150 °F band.
- Automatic Reset Function: Unlike manual or non‑resetting types, this switch resets itself after cooling, which helps reduce maintenance and interruption.
- Compact & Durable Design: Engineered for durability in high temperature, vibration, and cycling conditions common to furnace environments.
- Broad Compatibility: Commonly used in furnaces such as GMS81155CXA, GMS80903BNA, and others.
