Troubleshooting GP Repairwc_tx000548gb.fm 846.12 Checking Main Circuit Breaker and Receptacle CircuitrySee Graphic: wc_gr003140Electric shock hazard. Only qualified personnel should conduct thistest.If there is no voltage measured at the receptacles but there is voltageat the generator terminal strip, you’ll need to check the following: thewiring to the main circuit breaker, the main circuit breaker, and thewiring to the receptacles. To check the circuit, carry out the followingprocedures:6.12.1 Remove the screws which secure the control panel to the frame andremove the control panel from the frame.6.12.2 Start the generator.6.12.3 Check the incoming voltage to the main circuit breaker (a) bymeasuring between each of the “Hot” terminals (b) (wires #102 and #5)and ground. On GP 2500A models, measure between “Hot” terminals(f) and ground. There should be 120V±10%.• If 120V±10% is not measured, stop the generator and check thecontinuity of wires #102 and #5. Repair or replace the wires asneeded.• If 120V±10% is measured, continue.6.12.4 Place the main circuit breaker in the ON position and check theoutgoing voltage from the main circuit breaker.• If 120V±10% is not measured, stop the generator and replace themain circuit breaker.• If 120V±10% is measured, continue.6.12.5 Check the continuity of the wiring to the receptacles (c, d, and e, or gon GP 2500A models).• If the wiring has no continuity, repair or replace it.• If the wiring has continuity, the receptacle is faulty. Replace thereceptacle.WARNING
