[Lifetime Warranty] 47-22861-01 Limit Switches L350 Furnace Bimetal Thermostat Switch | 250V/10A
Close-up of 47-22861-01 L350 furnace bimetal thermostat limit switch with mounting flange and two terminals.
47-22861-01 L350 furnace bimetal thermostat limit switch with dimensional measurements and technical specifications.
47-22861-01 furnace bimetal thermostat limit switch with aluminum alloy and ceramic construction.
Close-up of 47-22861-01 furnace bimetal thermostat limit switch with mounting bracket.
Collage showing various household appliances and a car interior to demonstrate versatile compatibility for L350 thermostat.
Four-step installation guide for 47-22861-01 furnace bimetal limit switch thermostat.
Family reading together by a fireplace to represent the comfort provided by 47-22861-01 furnace limit switch thermostats.
Close-up of 47-22861-01 L350 furnace bimetal thermostat limit switch with mounting flange and two terminals.
47-22861-01 L350 furnace bimetal thermostat limit switch with dimensional measurements and technical specifications.
47-22861-01 furnace bimetal thermostat limit switch with aluminum alloy and ceramic construction.
Close-up of 47-22861-01 furnace bimetal thermostat limit switch with mounting bracket.
Collage showing various household appliances and a car interior to demonstrate versatile compatibility for L350 thermostat.
Four-step installation guide for 47-22861-01 furnace bimetal limit switch thermostat.
Family reading together by a fireplace to represent the comfort provided by 47-22861-01 furnace limit switch thermostats.
Lifetime Warranty

[Lifetime Warranty] 47-22861-01 Limit Switches L350 Furnace Bimetal Thermostat Switch | 250V/10A

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47-22861-01 Furnace Flame Rollout Limit Switch L350

Key Features

  • Bimetal disc design for temperature sensing
  • Provides high-limit temperature protection
  • Fixed temperature cutout at 350°F (L350)
  • Single Pole, Single Throw (SPST) switch configuration
  • Designed for use in residential and light commercial HVAC systems

Replaces / Cross-Reference Part Numbers

  • 47-22861-01
  • 47-22861-01K
  • 47-22861-02
  • L350F
  • SRL350
  • 350F
  • 36TX16
  • 47-100241-01

Compatibility & Fitment

  • Direct replacement for Rheem furnaces requiring part number 47-22861-01
  • Fits various HVAC systems that specify a 350°F SPST high-limit switch
  • Verify compatibility by checking the part number and temperature rating on the original switch

When to Replace

  • Furnace blower runs continuously after the heating cycle stops
  • Heating cycle stops prematurely and restarts frequently (short cycling)
  • Furnace fails to ignite or produce heat due to an open limit circuit
  • The original switch fails a continuity test with a multimeter when at room temperature

Installation Tips

  • Disconnect all electrical power to the furnace before beginning installation
  • Locate the existing limit switch, typically mounted on the furnace plenum or near the heat exchanger
  • Note the wire connections before removing the old switch
  • Remove mounting screws and wires from the original switch
  • Install the new switch, ensuring it is securely fastened
  • Reconnect wires to the terminals on the new switch
  • Restore power and run the furnace through a complete heating cycle to verify correct operation
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  • SAFETY CONTROL

    SAFETY CONTROL

    Our Limit Switch protects your equipment using a bimetallic chip contact sensor.
  • DURABLE BUILD

    DURABLE BUILD

    It is equipped with high-quality aluminum alloy and thermoplastic materials for superior conductivity and high reliability.
  • EASY TO INSTALL

    EASY TO INSTALL

    Installing a Limit Switch is easy for any DIY handyman and takes only 30 seconds.
  • SAVING SOLUTION

    SAVING SOLUTION

    BlueStars brings DIY solutions to help you deal with any trouble.
CONNECTING LIVES, ENERGIZING MOMENTS

CONNECTING LIVES, ENERGIZING MOMENTS

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FAQ

This is an L350 manual reset, SPST (Single Pole Single Throw) limit thermostat. It features a 350°F cut-out temperature and is equipped with vertical 1/4" terminals.
This switch is designed as a direct replacement for Rheem part number 47-22861-01. It is also compatible with SRL350 series temperature controls and is suitable for use in various furnace models, as well as general electrical equipment, automobile motors, and transformers requiring a 350°F bimetal limit switch.
If your furnace fails to ignite or shuts down unexpectedly, it may be due to a tripped limit switch. Because this is a manual reset switch, it will remain in the 'open' position and prevent the furnace from operating until the button is manually pressed to reset it. If the switch trips repeatedly, it indicates an underlying overheating issue that must be addressed.
The switch operates using a bimetallic sheet that reacts to thermal changes. It is designed as a safety mechanism to cut off the circuit during overheating or overload conditions. If the switch trips, check for restricted airflow, dirty air filters, or issues with the blower motor, as these are common root causes for the furnace exceeding its safe operating temperature.
Before replacing the switch, ensure the power to the furnace is completely turned off. Inspect the wiring connections for any signs of heat damage or corrosion. Additionally, verify that the furnace's heat exchanger and air filters are clean, as installing a new switch without resolving the cause of the overheating will likely result in the new switch tripping immediately.