7 reasons your electric Samsung range cooktop warming element isn’t working & how to fix it

If the cooktop warming element on your electric Samsung range has stopped heating up, it can be a frustrating issue that interrupts your cooking. Fortunately, there are some simple troubleshooting steps you can take to diagnose and fix the issue yourself instead of calling in an expensive repair technician.

If you find out that you need any replacement parts for your Samsung range while you’re troubleshooting, 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 troubleshooting 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 you need

• Phillips head screwdriver
• Multimeter

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.

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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.
• Don’t test live voltage with a multimeter if you’re unfamiliar with how to prevent short-circuiting.

Read more: How To Replace A Range/Stove Glass Cooktop Assembly

How to troubleshoot the range

Follow these steps to find out why the cooktop warming element isn’t working on your electric Samsung range.

Step 1: Test the CN04 connector on the main control board

LIVE VOLTAGE WARNING: For this test, the range needs to be plugged in and powered on. Please be very careful to protect yourself from electric shock, which has the potential to cause serious injuries. Don’t ever test live voltage if you’re uncomfortable using a multimeter.

1. Find the CN04 connector on the far left bottom of the main control board.
2. Set a multimeter to Volts DC mode.
3. Use the meter probes to test from each orange wire to each blue wire.
4. Check the meter reading. You should get 4.7 VDC.

Step 2: Test the CN05 connector on the main control board

LIVE VOLTAGE WARNING: For this test, the range needs to be plugged in and powered on. Please be very careful to protect yourself from electric shock, which has the potential to cause serious injuries. Don’t ever test live voltage if you’re uncomfortable using a multimeter.

1. Find the CN05 connector, which is the second connector to the right of CN04 on the main control board.
2. Set a multimeter to Volts DC mode.
3. Use the meter probes to test from each black wire to each white wire.
4. Check the meter reading. You should get 3.85 VDC.

Step 3: Test the CN04 connector on the relay control board

LIVE VOLTAGE WARNING: For this test, the range needs to be plugged in and powered on. Please be very careful to protect yourself from electric shock, which has the potential to cause serious injuries. Don’t ever test live voltage if you’re uncomfortable using a multimeter.

1. Remove the lower panel to access the relay control board.
2. Find the CN04 connector, which is on the far left top of the relay control board.
3. Set a multimeter to Volts DC mode.
4. Use the meter probes to test from each orange wire to each blue wire.
5. Check the meter reading. You should get 4.7 VDC.

Step 4: Test the CN05 connector on the relay control board

LIVE VOLTAGE WARNING: For this test, the range needs to be plugged in and powered on. Please be very careful to protect yourself from electric shock, which has the potential to cause serious injuries. Don’t ever test live voltage if you’re uncomfortable using a multimeter.

1. Find the CN05 connector, which is the second connector to the right of CN04 on the relay control board.
2. Set a multimeter to Volts DC mode.
3. Use the meter probes to test from each black wire to each white wire.
4. Check the meter reading. You should get 3.85 VDC.

Step 5: Test the T01 connector on the relay control board

LIVE VOLTAGE WARNING: For this test, the range needs to be plugged in and powered on. Please be very careful to protect yourself from electric shock, which has the potential to cause serious injuries. Don’t ever test live voltage if you’re uncomfortable using a multimeter.

1. Set the multimeter to Volts AC mode.
2. Use the meter probes to test the violet wire, which is the supply to the warming element.
3. Check the meter reading. You should get 120 VAC.

Step 6: Test the warming element

1. Unplug the range from the power outlet.
2. Remove the top of the range to access the warming element.
3. Set the multimeter to continuity mode.
4. Use the meter probes to test the thermostat with yellow and violet wires. You should have continuity at room temperature and the meter should make a beeping sound.
5. Use the meter probes to test the thermostat with black and gray wires. You shouldn’t have continuity at room temperature and the meter shouldn’t make a beeping sound.
6. Set the meter to resistance mode.
7. Use the meter probes to test the red and yellow wires at the element terminals. You should see a resistance reading between 570 to 580 Ohms.

If the resistance is not within this range, then the warming element needs to be replaced.

Step 7: Test the wire harness

If all other parts have tested OK so far but the warming element still doesn’t work, check the wiring harness:

1. Set a multimeter to continuity mode.
2. Use the meter probes to test each wire from end to end for continuity. The meter should make a beeping sound if there’s continuity.

Replace any wires that don’t have continuity or are damaged.

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Looking for more?

Thank you for reading! We hope this guide helped you get your electric Samsung range working again.

If you have any other appliance repair needs or projects, don’t hesitate to explore our other troubleshooting guides and videos.

If you need replacement parts or some extra help with ordering them, grab your model number and head over to AppliancePartsPros.com, where you can chat with a pro, read our DIY blog and more.

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