Samsung range and wall oven E-27: sensor open circuit
E-27 means: Oven temperature sensor open circuit (resistance too high).
How to fix E-27
- Cut power for 3 minutes.
- Unscrew the sensor probe inside the oven cavity (two screws at the back wall), unplug it and meter it: about 1080 ohms cold.
- Replace the sensor if open or far off; reseat the plug if it reads fine.
When to stop and call a repairer
Cut power before unplugging the sensor.
What it costs
Parts: Sensor $20 to $40.
Service: A home visit from an appliance technician runs $120 to $250 for diagnosis plus the part. Boards are the expensive part; sensors and switches are cheap.
Worth repairing? Yes.
How to check the error log
Samsung ovens do not have a user-accessible error log. The code stays on the display until you fix the cause or cut power at the breaker for 3 minutes; if it returns after a reset, treat it as real.
Clear the log after a repair so you can tell whether the fault has really gone.
Related codes on the same part
- E-28 — Oven temperature sensor short circuit (resistance too low)
FAQ
What does E-27 mean on the Samsung range and wall oven?
Oven temperature sensor open circuit (resistance too high). The sensor reads over about 2950 ohms, which the board treats as open. Loose plug or a failed sensor probe.
Can I fix E-27 myself?
DIY difficulty: easy. Cut power for 3 minutes. Unscrew the sensor probe inside the oven cavity (two screws at the back wall), unplug it and meter it: about 1080 ohms cold.
How much does it cost to fix E-27?
Sensor $20 to $40. A home visit from an appliance technician runs $120 to $250 for diagnosis plus the part. Boards are the expensive part; sensors and switches are cheap.
Is it worth repairing?
Yes.
Code meanings are compiled from manufacturer service references and repair documentation for the NE / NX / NV / NZ; fixes follow documented repairs and owner reports. Model revisions can differ. If your appliance is under warranty, contact the manufacturer before opening it.