Samsung · Oven Moderate

LE — Low DC Voltage / Low Line Voltage

The main control board is seeing low DC voltage (typically under 9 VDC on internal rails), or low incoming line voltage from the house supply.

Keep using it?
Yes, with caution
DIY difficulty
Moderate

How to fix it

  1. Cut power at the breaker.
  2. Inspect and retighten the terminal block / pigtail connections on the range or wall oven.
  3. Measure incoming voltage at the terminal block under load — both legs should be ~120V to ground, ~240V leg-to-leg.
  4. If incoming voltage is low, the issue is house wiring or utility supply (call an electrician).
  5. If incoming voltage is good, the low-voltage section of the main control board has failed — replace the main PCB.

Why it happens

Typical signs: LE displayed at power-up or during cook · Oven won't start or randomly shuts off · Display dimmer than normal · Clock loses time

  • Low incoming line voltage Brownout or undersized circuit dropping voltage under load.
  • Loose neutral or hot at terminal block Connection at the range/oven not fully tight.
  • Failed low-voltage power supply on main PCB Onboard 5/12 VDC rail collapsed.
  • Long/undersized branch circuit wire Voltage drop under load exceeds spec.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • Samsung oven main control board Common replacement
    Amazon →

More Samsung oven codes

---- ---- — Invalid Temperature Setting -dC- -dC- — Flex Duo Divider Missing or Removed -dE- -dE- — Flex Duo Divider Not Installed bAd LinE bAd LinE — Bad Power Connection C-10 Range C-10 — Temperature Sensor Reading Error C-20 C-20 — Oven Temperature Sensor Open/Short

All Samsung codes → All oven codes →

Frequently asked questions

What does the LE code mean on a Samsung oven?

The main control board is seeing low DC voltage (typically under 9 VDC on internal rails), or low incoming line voltage from the house supply.

What causes the LE code on a Samsung oven?

Low incoming line voltage: Brownout or undersized circuit dropping voltage under load. Loose neutral or hot at terminal block: Connection at the range/oven not fully tight. Failed low-voltage power supply on main PCB: Onboard 5/12 VDC rail collapsed.

Is it safe to keep using a Samsung oven with a LE error?

Yes, with caution. This is rated a moderate-severity fault.

How do I fix LE on a Samsung oven?

Cut power at the breaker. Inspect and retighten the terminal block / pigtail connections on the range or wall oven. Measure incoming voltage at the terminal block under load — both legs should be ~120V to ground, ~240V leg-to-leg.

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.