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Troubleshooting
Problem Cause Correction
Au tomatic transfer switch does
not transfer to generator
1. Generator breaker open.
2. Generator voltage not acceptable.
3. Generator disconnect circuit breaker open
in transfer switch.
1. Reset generator circuit breaker.
2. Refer to generator manual.
3. Reset generator disconnect circuit
breaker in transfer switch.
Au tomatic transfer switch does
not transfer to utility
1. Utility disconnect circuit breaker open in
transfer switch.
2. Utility voltage not acceptable.
1. Reset utility disconnect circuit breaker
in transfer switch.
2. Wait for utility voltage to return
to normal.
Ge nerator is still running after
switch transfers to utility
power
Engine cool down period. Engine should stop after 1 minute.
Ge nerator or supervised loads
(air conditioner, etc.) are
operating improperly when
generator is supplying power
1. Remote modules are not
operating correctly.
2. Too much load on generator.
3. Current transformer not connected.
4. Broken current transformer.
5. Communication lost due to power line
noise.
6. Communication lost between transfer
switch and Symphony II control boards.
1. Five minute delay timer has
not expired.
2. Decrease load to generator.
3. Contact local authorized service center.
4. Contact local authorized service center.
5. Verify fluorescent ballasts are rated for
residential use only. If not, replace
with residential ballast.
Install noise filter in series and close
to problematic device.
Rewire remote module to opposite
power line (L1 or L2) from that of
problematic device.
6. Contact local authorized service center.
Ge nerator is still running after
utility power is restored
1. Minimum engine run time has not elapsed.
2. Fuse(s) in transfer switch is defective.
1. Wait five minutes for transfer switch to
retransfer to utility power.
2. Contact local authorized service center.
Re lay modules do not close after
five minutes
1. Too much load on generator.
2. Communication interruption.
3. Priority set to 9 or 10.
1. Decrease load to generator.
2. Reset utility disconnect circuit breaker
in transfer switch and wait five
minutes (turn OFF breaker for ten
seconds then turn it back ON).
3. Appliance will not turn on during
standby power. Contact local
authorized service center to change
priority setting.
Re lay modules do not open during
transfer and retransfer
Communication interruption. Contact local authorized service center.
Sy mphony II system control board
status LED does not change
illumination blinking pattern
for utility or generator power.
1. TxRx and TxRx GND communication
wires are not connected between the
generator and transfer switch.
2. TxRx and TxRx GND communication wires
are connected incorrectly between the
generator and transfer switch.
3. TxRx and TxRx GND communication
wires affected by electrical noise
interference.
1. Contact local authorized service center.
2. Contact local authorized service center.
3. Contact local authorized service center.
NOT
FOR
REPRODUCTION