Introduction
If a Samsung dryer runs but won’t heat, a failed heating element or a safety sensor in the heating circuit is a common cause. This guide shows how to open the dryer, test the heater and related sensors with a multimeter, replace the heating element, and reassemble the machine.
Note: Disassembly on similar-looking LG and Kenmore dryers is almost the same. The video does not show removing a full rear panel for access; it accesses the heater from the front after removing the door, bulkhead, and drum.
What you need
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Step 2 Release the top panel
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Slide a putty knife under the front edge of the top panel, and press the two locking tabs to pop the lid open.
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Step 3 Open the top panel from the back
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Use a screwdriver to remove the two screws securing the top panel from the back of the dryer.
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Push the top panel forward, and lift it up.
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Reinstall the two screws so the lid can lean back against the dryer without falling off.
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Step 4 Remove the door assembly
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Use a screwdriver to remove the seven screws securing the door area to the dryer.
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Depress the two metal retention tabs, and pull the door outward while lifting slowly to avoid damaging the wiring.
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Set the door on top of the dryer to make it easier to disconnect the door switch wire harness.
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Step 5 Remove the bulkhead and blower cover
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Use a screwdriver to remove the six bulkhead screws.
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Disconnect and remove the moisture sensor near the heating element in the lower right corner of the dryer.
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Lift the bulkhead up to release it from its tabs, and remove the bulkhead and blower cover.
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Step 6 Remove the drum
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Reach into the cabinet and unhook the idler pulley from the belt.
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Use the belt to lift the drum up, then pull the drum forward and out of the cabinet.
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Step 7 Clean lint and document wiring
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Clean out lint inside the dryer before servicing the heating system.
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Inspect the heating element for visible damage.
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Take a photo of the heating system wiring so you can match the connections during reassembly.
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Step 8 Test the heating element with a multimeter
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Remove a single wire connector from the heating element to prevent false readings during testing.
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Use a flathead screwdriver or needle-nose pliers to remove stubborn connectors without damaging the spade terminals.
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Set a multimeter to continuity or resistance mode, and probe both heating element spade terminals at the same time.
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Replace the heating element if it doesn’t show continuity or it isn’t about 10 ohms.
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Step 9 Test the high-limit thermostat and thermal cutoff
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Remove a single wire connector from the high-limit thermostat or thermal cutoff before testing it.
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Use a multimeter continuity test, and replace the part if the meter does not show continuity.
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Step 10 Test the thermal fuse and thermistor
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Locate the thermistor and thermal fuse behind the blower housing, beside the motor and idler pulley.
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Remove a wire connector from each part, and remove each sensor if needed, since the video says they’re held in by a single screw on this unit.
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Test the thermal fuse with continuity or resistance, and replace it if the meter shows an open line with no value.
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Test the black thermistor in resistance mode, and expect about 12 kΩ at 70 °F (21 °C).
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Replace the thermistor if it reads outside roughly 10 kΩ to 14 kΩ at room temperature.
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Step 11 Remove the heater canister
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Use a Phillips screwdriver to remove the two screws holding the heater housing in place.
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Remove the sensors from the heater canister, or leave the wiring connected and remove the thermostat and thermal cutoff screws instead.
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Step 12 Remove the old heating element
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Remove approximately eight screws around the heater canister to open it and expose the heating element.
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Use needle-nose pliers to flatten the tiny metal retaining tabs on both heating element terminals.
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Pull the element terminals free, and lift the heating element out of the canister and ceramic housing.
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Step 13 Install the new heating element into the canister
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Set the new heating element into the canister, and thread the element terminals onto the ceramic block posts.
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Crimp the terminal retaining tabs back onto the terminals to lock the element in place.
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Reassemble the canister and reinstall the canister screws, bending the thin metal slightly if needed to align the screw holes.
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Step 14 Reinstall the heater canister and reconnect wiring
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Position the heater canister back in the dryer the same way it came out, and reinstall the two mounting screws.
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Reinstall the thermostat and thermal cutoff using their screws, and reinstall any other heater canister sensors.
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Step 15 Reinstall the drum and belt
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Lower the drum into the cabinet using the belt as a handle, and seat the drum on the rear bulkhead.
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Thread the belt back onto the motor, and route it around the idler pulley to apply tension.
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Rotate the drum by hand to confirm the belt is routed correctly and the blower moves as the drum turns.
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Step 16 Reinstall the bulkhead
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Fit the bulkhead back into place, making sure the bulkhead tabs seat correctly before installing screws.
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Reinstall the six bulkhead screws, including the two screws at the vent housing.
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Step 17 Reinstall the door and top panel
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Set the bottom of the door onto the metal hinges, and position the metal retention clips.
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Reinstall the seven door screws in their original locations.
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Lower the top panel, and make sure it seats on the plastic posts so it locks into place.
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Step 18 Test the dryer and troubleshoot if it still won’t heat
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Restore power and run a heat cycle to confirm the dryer heats normally.
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Check every electrical connection in the dryer if it still won’t heat after replacing parts and matching the wiring.
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Consider other causes mentioned in the video, including a failing motor centrifugal switch, a bad motor, or a severed wire.
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If the dryer heats after reassembly, keep the interior free of lint buildup, since the video notes lint can be a major contributor to heater failure. If the dryer still won’t heat and you’ve verified all connectors, the video narrows the remaining likely causes to live-voltage control board testing, the motor and its centrifugal switch, or damaged wiring, and recommends using a technician for live-voltage diagnostics.