BCFURNACE
547-124
+5% Tax • Shipping calculated at checkout.
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7" HIGH LIMIT SWITCH L170-30F
Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours

7" HIGH LIMIT SWITCH L170-30F 7 High Limit Control Switches
+5% Tax • Shipping calculated at checkout.
U.S. Duties/Taxes, if applicable, may be due at time of delivery.
Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours
This 7-inch high limit switch is a vital safety component engineered for gas furnaces and forced-air heating systems. Designed to monitor the temperature within the heat exchanger, this thermal limit control acts as a safeguard against overheating. If the internal temperature reaches an unsafe threshold of 170°F, the switch automatically interrupts power to the burner or heating element, preventing equipment damage and ensuring home safety. Featuring a 30°F differential, the switch is designed to reset once the system cools to a safe operating temperature of 140°F. This replacement part is essential for HVAC repair when a furnace is short-cycling or failing to stay lit due to a faulty safety sensor.
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