E00 Serious Moderate DIY

LG Dryer E00 — Display PCB cannot read main PCB software

LG Dryer · Error code E00

What E00 Means

E00 indicates the display/sub board cannot communicate with the main control board to read its firmware. The dryer either will not boot past the splash screen or will not accept any input.

Symptoms

  • E00 on display
  • Dryer powers up but is unresponsive
  • Display flickers or shows partial segments
  • Recently had a power surge

Common Causes

1
Loose ribbon/communication cable

Cable between display and main board not fully seated.

2
Failed display sub-board

Display PCB hardware fault.

3
Failed main control board

Firmware corrupted or main PCB hardware fault.

4
Recent surge damage

Storm or brownout damaged one or both boards.

How to Fix It

  1. Unplug the dryer for 5 minutes.
  2. Open the top/console and reseat the ribbon cable between the display board and the main board on both ends.
  3. Inspect both boards for burnt components, swollen capacitors, or surge damage.
  4. Plug back in. If E00 persists, the display board is usually the cheaper first replacement.
  5. If a new display board does not clear E00, replace the main control board.
  6. Add a quality surge protector strip rated for 240V appliances to prevent recurrence.

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.

Common replacement LG dryer display control board View on Amazon→ Common replacement LG dryer main control board View on Amazon→

More LG Dryer Codes

AE AE — Compressor / heat-pump system fault bE bE — Drum drive belt broken or off CL CL — Child Lock / Control Lock active d80 d80 / d90 / d95 — Exhaust Duct Blocked D90 D80 / D90 / D95 — Clogged Exhaust Vent d95 d95 — Exhaust duct ~95% blocked

All LG codes → All dryer codes →

Verified against manufacturer documentation: lg.com

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