Oven
E1
The E1 error code on a Samsung oven indicates a temperature sensor fault — specifically that the oven’s cavity sensor is either open-circuit, short-circuit, or reading temperatures outside the expected range. It’s one of the more common Samsung oven faults and, while it will stop your oven from heating safely, it’s not always an expensive fix. In this guide, you’ll learn exactly what triggers the E1 code, what you can safely check yourself, and when it’s time to call in a professional.
What does this error mean?
The E1 error code on a Samsung oven (including models from the NV, BQ1, BF1, and Dual Cook flex ranges) is a temperature sensor error. Your oven has a small probe — called a thermistor or NTC sensor — fitted inside the oven cavity, usually at the back wall or near the top element. This sensor continuously monitors the internal temperature and feeds that data to the main control board. When the control board detects that the signal from this sensor is absent, implausible, or outside the safe operating range (typically 0°C to 300°C), it throws the E1 fault code and shuts down heating as a safety measure. In plain terms: your oven can no longer confirm what temperature it’s running at, so it refuses to operate. This is a sensible safety feature — an oven that can’t monitor its own temperature could overheat dangerously. The good news is that the sensor itself is a relatively inexpensive part, and the fault is sometimes caused by nothing more than a loose wire connector rather than a failed component.
Est. repair cost
DIY sensor replacement: £15–£45 for the part. Professional repair (sensor fault): £80–£160 all-in. Professional repair (control board fault): £180–£320 all-in.
🔍 Likely causes
🛠️ Step-by-step fix
Step 1 — Perform a hard reset: Switch the oven off at the wall socket (or trip the circuit breaker in your consumer unit), wait a full 5 minutes, then restore power and see if the error clears. A temporary glitch in the control board can occasionally trigger a false E1 code, and a power cycle is the quickest first check. No tools needed.
Step 2 — Check your Samsung oven’s user manual or the Samsung SmartThings app: Some Samsung ovens allow you to view diagnostic information through the SmartThings app. Connect your oven if it’s a Wi-Fi enabled model and check whether the app gives any additional fault detail beyond E1. This costs nothing and takes two minutes.
Step 3 — Inspect the oven cavity for visible damage: With the oven completely off and cool, open the door and look at the back interior wall. The temperature sensor is usually a thin metal probe, roughly 3–5cm long, protruding from a small bracket. Check whether it looks physically damaged, bent, or discoloured beyond normal browning. Do not touch any electrical components — this is a visual check only.
Step 4 — Clean the oven interior thoroughly: Heavy grease deposits around the sensor can interfere with its readings. Using a suitable oven cleaner (following the product instructions carefully), clean the oven interior, paying particular attention to the area around the sensor probe. Allow the oven to dry fully before restoring power. Tools needed: oven cleaner, rubber gloves, non-abrasive cloth.
Step 5 — Check the sensor’s resistance with a multimeter (confident DIYers only): If you own a multimeter, you can test the sensor without removing it from the oven. At room temperature (approximately 20°C), a Samsung NTC oven sensor should typically read between 9,000 and 11,000 ohms (check your specific model’s service data if available). First, isolate the oven at the wall. Locate the sensor connector — on most Samsung built-in ovens this is accessible by removing the back inner panel (usually held by 2–4 Torx T20 screws). Unplug the sensor connector and test across the two sensor terminals. If the reading is open circuit (OL) or wildly outside the expected range, the sensor has failed. Tools needed: multimeter, Torx T20 screwdriver.
Step 6 — Replace the temperature sensor (if confirmed faulty): Samsung oven temperature sensors are widely available from UK appliance parts suppliers including eSpares, 4ourhouse, and AppliancesDirect Parts. Search using your full model number (found on the rating plate inside the door frame). Genuine Samsung sensors typically cost £15–£45. Fitting involves isolating the oven at the wall, removing the inner back panel (Torx T20 screws), unplugging the old sensor connector, unscrewing the sensor bracket (usually one or two screws), fitting the new sensor, and reassembling in reverse. This is a manageable DIY job if you are comfortable with basic appliance repair. Tools needed: Torx T20 screwdriver, replacement Samsung-compatible sensor.
Step 7 — Inspect the wiring harness for visible damage: Once you have the back panel off (as in Step 5), visually trace the two wires from the sensor towards the control board. Look for any obvious chafing, burning, or broken insulation. If you find damaged wiring, do not attempt to repair it yourself — this is a job for a qualified appliance engineer, as improper wiring repairs in a heating appliance are a fire risk.
Step 8 — After any repair, test the oven carefully: Restore power, set the oven to 180°C, and allow it to run for 15 minutes. Check that it reaches temperature and that the E1 code does not return. If the error reappears after a sensor replacement, the fault is likely in the wiring harness or the main control board, and a professional should take over.
📞 When to call a professional
Call a qualified appliance repair engineer if: the E1 error returns after a hard reset and oven clean; your multimeter test shows the wiring rather than the sensor is at fault; you are not confident removing the inner back panel yourself; or replacing the sensor does not clear the fault (suggesting a control board or wiring harness issue). When you call, tell the engineer: ‘My Samsung oven is showing an E1 error code, which I understand is a temperature sensor fault. I have already tried a hard reset and cleaned the oven. I have (or have not) tested the sensor resistance.’ This will save diagnostic time and potentially reduce your call-out fee. For Samsung ovens still under warranty (Samsung offers a standard 2-year guarantee, sometimes extended to 5 years on certain models), contact Samsung Support directly on 0330 726 7864 before booking an independent engineer, as a warranty repair will be free of charge. If your oven is a gas range or dual-fuel cooker with gas burners, ensure any engineer who works on the gas components is Gas Safe registered — you can verify this at gassaferegister.co.uk.
⚖️ Repair or replace?
For most UK homeowners, repairing a Samsung oven with an E1 fault is the right call — provided the oven is under 8 years old and in otherwise good condition. Samsung is a mainstream brand with good parts availability in the UK, and a temperature sensor is one of the cheaper components to replace. If the fault is simply a failed sensor, a DIY fix will cost you £15–£45 in parts and an hour of your time. A professional repair (call-out, diagnosis, and sensor replacement) typically runs £80–£160 depending on your region and the engineer. Control board replacement is significantly more expensive — boards for Samsung ovens typically cost £80–£180 for the part alone, making a full professional repair £180–£320. At that point, weigh it against a new oven: a comparable Samsung built-in electric oven retails for £350–£700 new. Our recommendation: if the oven is under 5 years old, repair it regardless of fault type. Between 5–8 years old, repair it if the fix is sensor or wiring — but think carefully before spending over £200 on a control board. Over 8 years old, or if the control board has failed, replacing the oven is likely the more economical long-term decision.