SWITCH; LIMIT, OPEN AT 135F, CLOSE AT 10 Fan Disc, High Limit Control Switches
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Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours
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This high-quality Fan Disc High Limit Control Switch is a vital safety component for residential furnace and HVAC systems. Designed as a thermal safeguard, this normally closed (NC) limit switch monitors internal temperatures to prevent the heat exchanger from overheating. When the system temperature reaches the 135°F threshold, the switch automatically opens the electrical circuit, shutting down the burner or heating element to ensure safe operation. Once the unit cools to a safe temperature, the switch resets, allowing your heating system to resume its cycle. This replacement part is ideal for fixing furnace short-cycling or units that have stopped heating due to a failed safety sensor, ensuring your heating equipment remains reliable and efficient throughout the season.
Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.
1-778-759-9864Mon–Sat 8AM–9PM PST · Or email parts@bcfurnace.com
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