Troubleshooting - Rheem TS100A 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
Cause
1. Generator breaker open.
2. Generator voltage not acceptable.
3. Generator disconnect circuit breaker
open.
1. Utility disconnect circuit 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.
3. Reset generator disconnect circuit
breaker.
1. Reset utility disconnect circuit
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 Rheem/Ruud 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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