LG · Dryer Serious
E00 — Display PCB cannot read main PCB software
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.
- Keep using it?
- Limited use only
- DIY difficulty
- Moderate
- Verified against
- lg.com ↗
How to fix it
- Unplug the dryer for 5 minutes.
- Open the top/console and reseat the ribbon cable between the display board and the main board on both ends.
- Inspect both boards for burnt components, swollen capacitors, or surge damage.
- Plug back in. If E00 persists, the display board is usually the cheaper first replacement.
- If a new display board does not clear E00, replace the main control board.
- Add a quality surge protector strip rated for 240V appliances to prevent recurrence.
Why it happens
Typical signs: E00 on display · Dryer powers up but is unresponsive · Display flickers or shows partial segments · Recently had a power surge
- Loose ribbon/communication cable Cable between display and main board not fully seated.
- Failed display sub-board Display PCB hardware fault.
- Failed main control board Firmware corrupted or main PCB hardware fault.
- Recent surge damage Storm or brownout damaged one or both boards.
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.
More LG dryer 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: lg.com.