⚠
warning DeWalt
Error Code 31
Worn drain plug o-ring — the seal on the drain plug has deteriorated and is no longer effective.
? What Causes This
Normal wear of the rubber o-ring from repeated use and temperature cycling.
✓ How to Fix It
- Turn off and cool the unit.
- Remove the drain plug.
- Replace the o-ring with a new one of the same size.
- Reinstall the drain plug securely.
Source: page 6 of the official manual
From the manual
This error code appears in:
DeWalt 3300 Psi Pressure Washer