Troubleshooting

Problem

 

Cause

 

Correction

 

 

 

 

 

Automatic transfer switch does not

1.

Generator breaker open.

1.

Reset generator circuit breaker.

2.

Generator voltage not acceptable.

2.

Refer to generator manual.

transfer to generator

3.

Generator disconnect circuit breaker

3.

Reset generator disconnect circuit

 

 

open.

 

breaker.

 

 

 

 

 

Automatic transfer switch does not

1.

Utility disconnect circuit breaker

1.

Reset utility disconnect circuit

 

open.

 

breaker.

transfer to utility

2.

Utility voltage not acceptable.

2.

Wait for utility voltage to return to

 

 

 

 

normal.

 

 

 

 

 

Generator is still running after switch

Engine cool down period.

Engine should stop after 1 minute.

transfers to utility power

 

 

 

 

 

 

 

 

 

Generator or supervised loads (air

1.

NC contacts not operating correctly.

1.

Check NC contacts for proper

conditioner, etc.) are operating

 

 

 

operation and/or check control

improperly when generator is supplying

 

 

 

wiring to external load.

power

2.

Too much load on generator.

2.

Decrease load to generator.

 

 

 

 

 

Generator is still running after utility

1.

Minimum engine run time has not

1.

Wait five minutes for transfer switch

 

elapsed.

 

to retransfer to utility power.

power is restored

2.

Fuse(s) in transfer switch is

2.

Check fuse(s) and replace if

 

 

defective.

 

necessary

 

 

 

 

 

10

BRIGGSandSTRATTON.COM

Page 10
Image 10
Briggs & Stratton Automatic Transfer Switch manual Troubleshooting, Problem Cause Correction