| Problem | Cause | Solution |
| No function of controller / Light off | Power switch is turned "OFF" | Switch "ON" controller |
| Battery exhausted or poor battery | Re-charge or replace battery in controller | |
| Fixed battery incorrect | Check the each battery and make sure they are fixed correctly. | |
| Bad power connect | Make sure each battery setted well | |
| Faulty item | Replace another one to try | |
| No function of controller / Light on | Controller never been Inactive before | Active controller by push the left throttle stick fully forward then fully backwards |
| Incorrect frequency | Change another controller with different frequency for testing by cross control | |
| Bad transmitter | Replace anohter one to try | |
| No function of helicopter / Light off | Switch is turned "OFF" | Switch "ON" helicopter |
| Bad battery or exhausted | Replace another one to try | |
| Faulty item | test it by multimeter & return it back for repair once confirmed. | |
| No function of helicopter / Light on | No signal or weak signal from controller | Screwed in antenna and fully extended |
| Incorrect frequency band | Change another controller with different frequency for testing by cross control | |
| Battery exhausted or poor battery | Replace another one | |
| Faulty item | test it by multimeter & return it back for repair once confirmed. | |
| Propeller can't move | ON / OFF Switch is Off | Set switch to "ON" |
| Weak battery | Re-charge the battery pack | |
| Suddenly stop and drop down when flying | Weak power | Re-charge the battery pack |
| Weak signal | Move close to the helicopter / replace the LED light for signal out-put | |
| The helicopter does not react | Channel selection on transmitter is not correct | Reset the correct channel |
| Loss of control | Another infrared control device using the same channel | Avoid these if possible, or choose another place to operate the helicopter |
| Weak signal | Change battery / move close to the helicopter / replace the LED light for signal out-put | |
| Affected by strong lighting or wing | Change another environment to avoid direct lighting | |
| Helicopter take too much forward / backrward speed by it self | Helicopter out of trim | Twist tail anticlockwise / clockwise for about 30 centigrade |
| Helicopter always tremble | Balance hammer falled off / distorted / damaged | Recover it or replace a new one |
| Helicopter spins / flies off course | Abnormity location of Trimming adjustment | Locate the trimming adjustment in the middle of the bar and gently move the right throttle stick to the opposite direction. |
| Propeller distorted | Recover the propeller |
