If your Samsung oven suddenly flashes E-38 on the display, it’s not trying to send you a secret code — it’s warning you about a Temperature Sensor Error. In most cases, this means the oven’s internal sensor is sending incorrect readings to the control board. Without accurate temperature readings, your oven can’t heat properly, and every meal you try to cook risks turning into a burnt or undercooked experiment.
This guide will walk you through what the Samsung Oven E-38 error means, the common causes, how you can try to fix it yourself, and when it’s best to call a local appliance repair service.
In Samsung ovens, the temperature sensor (also called the thermistor) monitors the oven’s heat level. The E-38 code appears when:
This sensor is a crucial part — if it fails, the oven might overheat, fail to preheat, or shut down unexpectedly.
Before you start, gather a few basic tools:
If you don’t have a multimeter or aren’t comfortable working with electrical components, it might be faster and safer to request an emergency oven repair service.
Unplug the oven from the wall outlet or switch off the circuit breaker. This isn’t optional — ovens run on high voltage, and working on them while powered can be dangerous.
Locate the temperature sensor inside the oven (usually on the back wall, inside the cooking cavity). Look for visible damage like frayed wires, burnt spots, or a broken sensor tip.
If the wiring is loose, gently reconnect it. If there’s corrosion, you may be able to clean the contact points.
Remove the sensor and test its resistance. A working oven sensor should read about 1,080 ohms at room temperature. If your reading is far off — too high or too low — the sensor is faulty and needs replacing.
Replacement sensors for Samsung models are widely available online and from local appliance parts suppliers.
Unscrew the faulty sensor, disconnect the wires, and install the new one by reversing the removal steps. Make sure all connections are snug and secure.
Reassemble the oven, restore power, and test to see if the error code clears.
If the sensor is fine but the E-38 error remains, the problem could be with the control board. This is a more complex job that’s best left to trained technicians — especially if you want a fast turnaround with a free service call with repair.
If you’ve tried the steps above but the error persists — or if electrical repairs aren’t your comfort zone — it’s time to get help. A skilled repair technician can quickly test the wiring, replace faulty components, and ensure the oven is safe to use.
Our team at Express Repair offers express Samsung appliance repairs with same-day availability in your area.
The Samsung Oven Temperature Sensor Error can be frustrating, but it’s not always a death sentence for your oven. Sometimes, a loose wire or inexpensive sensor replacement is all it takes to get things back to normal. If you’re handy and have the right tools, the steps above can save you a service call.
However, ovens are powerful appliances — and when in doubt, calling a local professional is the safest, most efficient choice. Our same day repair service is just a click away, and you can book online and get $25 off on repair.
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