Troubleshooting - Briggs & Stratton 200 AMP AUTOMATIC TRANSFER SWITCH Installation And Operator's Manual

Troubleshooting

Problem
Automatic transfer switch does not
transfer to generator
Automatic transfer switch does not
transfer to utility
Generator is still running after switch
transfers to utility power
Generator or supervised loads (air
conditioner, etc.) are operating
improperly when generator is
supplying power
Generator is still running after utility
power is restored
12
Cause
1. Generator breaker open.
2. Generator voltage not acceptable.
1. Service disconnect breaker open.
2. Utility voltage not acceptable.
Engine cool down period.
1. A-A or B-B contacts not
operating correctly.
2. Too much load on generator.
3. Current transformer not connected.
4. Broken current transformer.
1. Minimum engine run time has
not elapsed.
2. Fuse(s) in transfer switch
is defective.
Correction
1. Reset generator circuit breaker.
2. Refer to generator manual.
1. Reset service disconnect breaker.
2. Wait for utility voltage to return
to normal.
Engine should stop after 1 minute.
1. Check A-A or B-B contacts for
proper operation and/or check
control wiring to external load.
2. Decrease load to generator.
3. Plug CT connectors into
control module.
4. Contact local authorized
service center.
1. Wait five minutes for transfer switch
to retransfer to utility power.
2. Check fuse(s) and replace
if necessary.
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