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Symptom Possible cause Test Solution
Repeated
fuse or circuit
breaker fault.
Application problem Perform startup procedures. Check
panel output motor current at full
speed and check for excessive over
current.
If current is too high, reduce the load
on the motor.
Panel problem Perform startup procedures. Check
panel input current at full load and
verify it is within acceptable range.
If current is too high, reduce the load
on the motor.
Power problem Monitor incoming power for surges,
sags and overall quality.
Correct any problems found.
Motor problem Test motor for correct function. Repair or replace motor if a problem is
found.
Open control
fuse
Improper voltage applied See pre-startup check list. Correct voltage mismatch. This could
potentially damage the panel. Use
caution when applying power.
Customer wires incorrectly terminated See the customer connection drawing
and make sure the wires are connected
to the correct terminals.
Correct any wrong connections. This
could potentially cause damage to the
panel.
Control ground fault Check all control wires for a short to
ground.
Correct any ground faults found. This
could potentially cause damage to the
panel.
Control short Check control wires for a short in
supply voltage.
Correct any shorts. This could
potentially cause damage to the panel.
Open SMPS
fuse
Improper voltage applied See pre-startup check list. Correct voltage mismatch. This could
potentially damage the panel. Use
caution when applying power.
Customer wires incorrectly terminated See the customer connection drawing
and make sure the wires are connected
to the correct terminals.
Correct any wrong connections. This
could potentially cause damage to the
panel.
Control ground fault Check all control wires for a short to
ground.
Correct any ground faults found. This
could potentially cause damage to the
panel.
Control short Check control wires for a short in
supply voltage.
Correct any shorts. This could
potentially cause damage to the panel.
Motor
rotation
incorrect
Rotation incorrect in bypass, drive or
both
Motor rotation is backwards in drive
mode, bypass mode, or both.
Perform motor rotation procedure in
4 Start Up.
Start Up Troubleshooting
BAS-SVX49A-EN 7-3