Symptoms: machine stops during surfacing or edging, audible strain or clicking. Immediate steps:

Proactive maintenance and careful handling will help prevent many common issues. Before troubleshooting, it is always wise to follow the fundamental safety precaution: before plugging your edger into the mains, check that the switch is set to OFF or 0. If the switch no longer operates ON/OFF (0/I), you must stop using your edger.

: On the keypad, hold down the 9 key while simultaneously pressing the 5 key.

: Turn the machine off, wait 30 seconds, and turn it back on to clear temporary software glitches. Clear Obstructions

| Code | Category | User Reset | Parts Likely Needed | | :--- | :--- | :--- | :--- | | | Safety | Yes (Cycle power) | Door interlock | | E-201 | Motor overload | Maybe (After cooling) | Roughing wheel, motor | | E-306 | Bevel | Yes (Clean encoder) | Encoder strip, stylus | | E-413 | Pneumatic | Yes | Clamp belt, air filter | | E-507 | Wheel | No (Must dress) | Dressing stone | | E-722 | Communication | Yes | Tracer cable, PC | | E-888 | Software | Yes (Hard reset) | CF card, firmware | | E-990 | Parameter | No | Main PCB, backup |