Generac Power Systems XP8000E User Manual

Section 1 Brushless Capacitor Excitation
Diagnostic Repair Manual 3
Troubleshooting Flowcharts
Introduction
Use the Flow Charts in conjunction with the AC Diagnostic Tests . Test numbers used in the flow charts correspond to
the numbered tests in the AC Diagnostic Tests . The first step in using the flow charts is to identify the correct problem
on the following pages. For best results, perform all tests in the exact sequence shown in the flow charts.
If Problem Involves AC Output
Problem 1 – Generator Produces Zero Voltage or Residual Voltage
GO TO PROBLEM 2 GO TO PROBLEM 1GO TO PROBLEM 4 GO TO PROBLEM 3
VOLTAGE &
FREQUENCY BOTH
HIGH OR LOW
FREQUENCY GOOD
VOLTAGE HIGH
ZERO VOLTAGE
ZERO FREQUENCY
FREQUENCY GOOD,
LOW OR RESIDUAL
VOLTAGE
TEST 1 - CHECK
NO LOAD VOLTAGE
& FREQUENCY
NO LOAD VOLTAGE &
FREQUENCY GOOD -
VOLTAGE/FREQUENCY
FALLS OFF UNDER LOAD
p
VERIFY ROTOR IS SPINNING,
GO TO PROBLEM 1
BAD
BAD
GOOD
GOOD
gg
TEST 2 – CHECK
MAIN CIRCUIT
BREAKER
RESET TO “ON”
OR REPLACE IF BAD
REPLACE COMPONENT
AS NEEDED
STOP
TESTING
TEST 3 – CHECK
CONTINUITY OF
RECEPTACLE PANEL
RE-CHECK VOLTAGE
AT RECEPTACLE
PANEL
TEST 5 – FIELD
FLASH
ALTERNATOR
REPLACE
BAD
BAD
BAD
REPLACE
S TATO R
REPLACE
ROTOR
ON
GOODGOODGOOD
TEST 6 –
CHECK
CAPACITOR
TEST 7 – TEST
BRUSHLESS
DPE WINDING
TEST 8 – TEST
BRUSHLESS
STATOR
WINDINGS

Generac Power Systems XP8000E Specifications

General

Brand	Generac Power Systems
Model	XP8000E
Category	Portable Generator
Language	English