The ECU835 is a generator-set controller. It is used on generator sets from MQ Power, including the DCA150SSJU4F and DCA300SSJU4F.
| Symptom | Cause | Remedy |
|---|---|---|
| Center Wear | Over inflation | Adjust pressure to particular load per tire manufacturer. |
| Circuit Breaker Tripped | Short Circuit in load | Check load and repair. |
| Cupping | Out-of-balance | Check bearing adjustment and balance tires. |
| Dragging Brakes | Brake lining thickness incorrect or not adjusted correctly | Install new shoes and linings. |
| Edge Wear | Under inflation | Adjust pressure to particular load per tire manufacturer. |
| Flat Spots | Wheel lockup and tire skidding | Avoid sudden stops when possible and adjust brakes. |
| High Voltage Output | Wiring connections loose | Check wiring and repair. |
| Locking Brakes | Brake components loose, bent or broken | Replace components. |
| Low Voltage Output | Engine speed incorrect | Turn engine throttle lever to "High". |
| No Brakes | Brake line broken or kinked | Repair or replace. |
| No Voltage Output | AC Voltmeter defective | Check output voltage using a voltmeter. |
| Noisy Brakes | System lubricated | Lubricate. |
| Side Wear | Loss of camber or overloading | Make sure load does not exceed axle rating; Align wheels. |
| Toe Wear | Incorrect toe-in | Align wheels. |
| Weak Brakes or Brakes Pull to One Side | Brake lining glazed | Reburnish or replace. |
Fault codes and symptom→remedy steps extracted from this controller’s service/owner documentation; verify against the official manual before servicing. Aggregated from the service documentation of generator sets built on this controller.