23
Trouble Shooting
Problem
Possible Cause
Solution
Aircraft not responding to the throttle but
responding to other controls
- ESC not calibrated
- throttle deactivated on radio
- motor wire disconnected
- Calibrate ESC according to manual
- activate throttle on radio
- check motor wires and connect/repair as
required
Excessive propeller noise or Excessive
vibration
- Propeller/EDF loose or damaged
- Propeller/EDF out of balance
- Propeller/EDF fan incorrectly installed or
mounting loose
- Tighten and/or Replace damaged parts
- balance propeller/EDF unit
- Remove and install the propeller correctly
- ensure mounting tight and parts correctly fitted
Reduced flight times or aircraft underpowered
- Low battery charge
- ESC overheating
- Defective battery
- Recharge battery
- Ensure adequate cooling to ESC
- Replace battery with new one
Control surface not moving, or responds
slowly to control inputs
- Control surface, control horn, linkage or
servo damaged
- Wire damaged or connector loose
- Replace or repair damaged parts and adjust
controls
- Check all wires and ensure connections are
secure
- Repair/replace damaged wires or connectors
Control surface reversed
- Channels reversed on the transmitter
- Check transmitter settings and adjust as
required
Motor loosing power in flight
- ESC not calibrated correctly
- ESC LVC low voltage cutoff activated
- Defective motor, ESC, or battery
- Recalibrate ESC
- Check the battery, transmitter, receiver, ESC,
motor and replace it if defective
- Get the aircraft land immediately and
recharge the battery
Slow LED flash on the receiver
- Receiver power loss
- Check the connection between ESC and
receiver
- Check if servo is damaged
- Check if the linkages are in place
EN