Replace the right front dual infinite switch on an electric Samsung range in 13 easy steps


Steven E / Tuesday August 6, 2024


The dual infinite switch on an electric Samsung range controls the power supply to the heating elements so the unit can adjust the temperature and heat output.

If the right front dual infinite switch is faulty, you can replace it without the need for an expensive service call.

If you need any replacement parts for your Samsung range, you can enter your model number at AppliancePartsPros.com to order them. Most orders arrive in just two business days, and we have thousands of free guides to show you how to install your new parts.

Important: The part replacement information provided in this article is based on model FTQ387LWGX and may not apply to your specific appliance model. While we strive to offer helpful advice for DIY appliance repairs, variations in models and configurations can lead to differences in troubleshooting steps, error codes and part replacements. For the most accurate guidance, we strongly recommend consulting the technical sheet for your specific appliance model.

What is the right front dual infinite switch & why is it important?

The dual infinite switch on a Samsung electric range allows the user to adjust the temperature and heat output of the oven or cooktop by varying the amount of electricity delivered to the heating elements. It uses a mechanism with two sets of electrical contacts. As the switch is rotated, it gradually makes and breaks these contacts, which increases or decreases the power flow to the heating elements.

If the switch range is failing, you may notice one or more of the following symptoms in your range:

  • Inconsistent heating
  • Erratic temperature changes
  • Inability to reach desired temperatures
  • Uneven cooking
  • Sudden power loss to the heating elements

What you need

  • Replacement right front dual infinite switch (make sure it’s compatible with your specific range model before installing)
  • Phillips head screwdriver

Important: The specific tools required may vary depending on the model of your appliance and the type of fasteners used on it. Always consult the user manual or refer to any specific instructions provided by the manufacturer for the recommended tools for your appliance model.

Read more:  How to replace a terminal block on an electric range

Safety precautions

When working on any appliance, remember to keep safety first. Here are some tips to keep in mind:

  • Always power off and unplug your appliance or switch off the circuit breaker before you attempt any maintenance or replacement work. This keeps you safe by eliminating any risk of electric shock.
  • If the appliance has recently been used, give it plenty of time to cool down before working on it.
  • Take your time while working to prevent accidents and personal injuries. Rushing is the enemy of precision.
  • Work in a well-lit area so you can see and access appliance parts.
  • Keep your workspace free of clutter and other obstacles. Keep children and pets away from the work area.
  • Never work on internal parts with wet hands. Make sure the work area is completely dry.
  • Check the user manual to see if there are specific installation or safety instructions related to your appliance or replacement part.
  • Be gentle when handling or removing parts. Excessive force might damage the appliance or cause personal injury.
  • Wear insulated work gloves to protect your hands from sharp metal parts and debris.
  • When working with wires, avoid touching any exposed wires or terminals. If you need to touch a wire, use a non-conductive tool or wear insulating gloves to prevent electrical shock.
  • Always take photos or make a note of wiring terminals or other connections before disconnecting them to make reassembly easier.
  • Consider wearing safety glasses and/or a dust mask when working with chemicals, dust or a large amount of debris to prevent irritation or injury.

Read more: Range Burner Receptacle Replacement: A Step-by-Step Guide

How to replace the right front dual infinite switch

Change out the right front dual infinite switch in your electric Samsung range by following these steps.

  1. Unplug the range from the power source or turn off the circuit breaker.
  2. Remove the rear cover on the back of the control panel by taking out the Phillips head screws.
  3. Find the right front dual infinite switch on the control panel.
  4. Remove the knob from the dual infinite switch.
  5. Note the wiring on the old dual infinite switch. Take a photo of it to help with reassembly later on.
  6. Disconnect the wiring from the old dual infinite switch.
  7. Remove the screws holding the dual infinite switch to the front of the control panel.
  8. Carefully remove the old dual infinite switch from the control panel.
  9. Position the new dual infinite switch in the control panel and secure it with the screws.
  10. Reconnect the wiring to the new dual infinite switch and make sure each wire is connected to the proper terminal.
  11. Replace the knob on the new dual infinite switch.
  12. Reinstall the rear cover on the back of the control panel by replacing the Phillips head screws.
  13. Plug the range back into the power source or turn the circuit breaker back on.

Read more: Electric Range Element Won’t Heat: Top 7 Reasons & Fixes

More for you

Thanks for reading! We hope this guide helped you replace the right front dual infinite switch on your electric Samsung range.

If you still need some replacement parts, grab your model number and head over to AppliancePartsPros.com. We offer over two million parts and most orders arrive in two business days. If you need some help with finding the right part or placing an order, you can contact our team at 1 (877) 477-7278.

While you’re waiting for your new part to arrive, you can explore our DIY blog and watch thousands of video tutorials on our YouTube channel.

Follow us on Facebook, Twitter and Instagram to see our latest repair guides!