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
- Verified against
- hillcountryrepairs.com ↗
How to fix it
- 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.
- If incoming voltage is low, the issue is house wiring or utility supply (call an electrician).
- 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 replacementAmazon →
More Samsung oven codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: hillcountryrepairs.com.