Lifetime Warranty
[Lifetime Warranty] 87F16 Furnace Primary Limit Switch up to 140°F
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$30.02
Regular price
$33.62
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87F16 Furnace Primary Limit Switch up to 140°F
Key Features
- Primary high-limit safety control for forced-air furnaces
- Activates at a fixed temperature of 140°F (60°C) to prevent overheating
- Automatically resets at 110°F (43°C)
- Switch configuration: SPST (Single Pole, Single Throw), normally open contacts
- Probe insertion length: 3 inches
Replaces / Cross-Reference Part Numbers
- 87F16
- 87F1601
- L140-30F
- L140F-40
- 36T01B3
Compatibility & Fitment
- Designed as a direct replacement for specific Lennox brand furnaces.
- Verify fitment by confirming the part number on your original switch or in your equipment's service manual.
When to Replace
- Furnace blower runs continuously after the heating cycle has stopped.
- Heating system short-cycles or shuts down prematurely.
- Furnace fails to produce heat or ignite the burners.
- Control board displays a fault code indicating an open limit switch.
Installation Tips
- Disconnect all electrical power to the furnace before servicing.
- Locate the limit switch, typically mounted on the furnace plenum near the heat exchanger.
- Note wire connections before removing the old switch.
- Install the new switch, secure it with the mounting screws, and reconnect the wires to the terminals.
- Restore power and test the furnace through a complete heating cycle to ensure proper operation.
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WIDE COMPATIBILITY
Compatible with many models of Lennox furnaces. Replaces part numbers L140-30F, 87F1601, 36T01B3, L140F-40 -
DURABLE MATERIAL
This part is made of high-quality aluminum alloy and thermoplastic materials for superior conductivity and high reliability -
SAVING SOLUTION
Enjoy the great feeling when your furnace is repaired and works properly like before. BlueStars brings DIY solutions to help you deal with any trouble -
IMPORTANT NOTE
This is a replacement part designed to be compatible with certain appliances. Any brand names mentioned are used solely to indicate compatibility
