Electrical Troubleshooting Procedures LTC Repair
wc_tx000429gb.fm 132
7.36 No Voltage at Receptacle—Flowchart 2A
wc_gr003098
No
Is 120V±10%
measured?
Make sure the main circuit breaker
and the receptacle's circuit breaker
are in the ON position.
Checking voltage at receptacle
Check voltage at receptacle.
No Voltage at Receptacle
See
Flowchart 1C
Is
120V±10%
measured?
Ye s
Checking voltage to main circuit breaker
Check voltage to main circuit breaker.
No
Ye s
Checking incoming voltage to receptacle
Measure incoming voltage at back of
receptacle. If 120V±10% is not measured,
repair/replace wiring between receptacle
circuit breaker and receptacle.
If 230V±10% is measured, replace the
receptacle.
Ye s
Checking receptacle circuit breaker
Measure incoming and outgoing voltage
to/from earth-leakage circuit breaker.
No
No
Repair/replace
wiring between main
circuit breaker, terminal
strip, and receptacle
circuit breaker.
Replace
receptacle circuit
breaker.
Is
120V±10% incoming
measured?
Is
120V±10% outgoing
measured?