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Page 43 of 47
Introduction
Small wind turbines are a complex mixture of mechanical, aerodynamic, electrical, electronic and
civil engineering. Even with the most careful installation, it is possible that problems may occur
during the installation or at some point during the life of the turbine.
The following headings are designed to help the installation engineer or turbine user to identify and
resolve any issues with the system as a whole. Before referring to the trouble-shooting guide,
ensure that the turbine has been correctly installed as per the instructions described earlier in this
user manual.
Common Problems pertaining to Installation
Issue:
The turbine spins extremely quickly and noisily but doesn't deliver any electrical current to the
batteries.
Potential Causes:
The turbine may be running in an off-load state meaning that the circuit from the turbine
to the batteries is not complete. In this situation, the turbine is free spinning and the
turbine may be generating higher voltages than anticipated from the turbine output
cables. Check that all of the connections from the turbine, through the run / stop switch to
the batteries are correct. If a fuse or circuit breaker has been fitted to the turbine, ensure
that this is correctly closing the circuit. Never leave the turbine running in an off-load state
as it may cause damage to the turbine during high winds.
The turbine may have developed an internal wiring fault which has resulted in a broken
circuit. In this situation, the turbine is free spinning but no voltage will be measureable at
the turbine output cables. If an internal fault is present, please contact your dealer or
Leading Edge Turbines for further advice.
Issue:
The rotor hub plate fixings do not correctly grip the rotor hub plate which means that the rotor hub
plate can rattle slightly.
Potential Causes:
The rotor hub fixings have been positioned incorrectly in the drive bearing hub. Remove
the fixings and replace them in the next hole over. This should allow the fixings to be
completely tightened meaning that the rotor hub plate will be correctly installed.
Issue:
A slight oscillation can be observed in the turbine tail fin whilst the turbine is rotating at certain
speeds.
Potential Causes:
Due to the nature of small wind turbines, a small level of oscillation is acceptable as the
turbine passes through certain speeds. This oscillation movement can be minimised by
ensuring that the distance between each tip is within tolerance (please see step 4, page 8).
Ensure, also, that the assembled rotor is correctly and concentrically fitted to the drive
bearing housing.
Summary of Contents for GA-LETU-016
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