Owner’s Manual
BWC EXCEL 10 Turbine
Page 33
Problem
Cause(s)
Diagnosis
Remedy
Rotor turns slowly and
does not speed up in
higher winds
1. Ice build-up on
blades
2. Short circuit in wiring
or inverter
3. Short circuit in tower
wiring, slip-rings, or
alternator
1. Check for ice
2. Open tower
disconnect. If turbine
spins freely an electrical
system problem is
indicated
3. The most likely
problem is a shorted
alternator. Diagnosis
requires tower climbing
1. Do nothing
– ice will
dislodge in a few days.
No need to furl the
turbine.
2. Contact your dealer
3. Contact your dealer
Rotor does not turn at
all
Mechanical failure
inside alternator
Rotor does not turn
even when winds
exceed 15 mph (6.7
m/s)
Contact your dealer
Powersync II display not
functioning
1. No power to inverter
2. Display or other
inverter component not
functioning properly
1. Turn off utility power
to inverter, using the
dedicated breaker in
your breaker panel, for
a minimum of 20
seconds. Then turn
power back on using the
breaker. Wait 300
seconds (5 minutes).
If inverter does not
resume operation, with
full display functionality,
contact your dealer
