Operator`s manual
GPi 3200 / 4300 Operation
wc_tx001875gb.fm 29
If the RESET button pops out during operation, stop the generator and check the 
equipment attached to the generator for defects.
Testing GFCI 
operation 
(CARB 
machines)
In the normal operating state, the sensing device green LED is illuminated and the 
circuit breaker is in the ON position.
Follow the procedure below to test the GFCI for proper operation every time the 
generator is used.
1. Disconnect all equipment from the generator.
2. Start the generator. 
3. Push the black TEST button (s1) on the receptacle. Pushing the TEST button in 
cuts power to the receptacles. The green LED goes out, the red LED 
illuminates, and the circuit breaker moves to the OFF position.
NOTICE: If the red LED does not illuminate, or the circuit breaker does not move 
to OFF, the GFCI is not working. Do not operate the generator until the problem 
can be corrected. 
4. Push the RESET button (s2). The red LED goes out, and the green LED 
illuminates.
5. Manually move the circuit breaker to the ON position to restore power to the 
receptacles.










