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Guardian
Inverter
4389
Repair Manual
Guardian 4389 - Repair Manual
156 pages
Manual
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Models:
4389, 4758 (6 kW NG, 7 kW LP)
4456, 4759 (12 kW NG, 12 kW LP)
4390, 4760 (13 kW
, 15 kW LP)
DIAGNOSTIC
REP
AIR MANUAL
AUTOMA
TIC HOME ST
ANDBY GENERA
TORS
Visit us online at
www
.guardiangenerator
s.com
DIAGNOSTIC
REP
AIR MANUAL
AIR-COOLED
2
Table of Contents
Main Page
Diagnostic
3
Table of Contents
3
Title
3
Electrical Formulas
4
Specifications
5
Fuel Consumption
5
Mounting Dimensions
6
General Information
9
Operating Instructions
22
AC Generators
27
Operational Analysis
31
DC Control
32
Troubleshooting Flowcharts
33
Diagnostic Tests
38
Operational Tests and Adjustments
50
Utility Source Voltage Available
54
Utility Source Voltage Failure
55
Transfer to Standby
56
Utility Restored
58
Transfer Switch in Utility
61
Introduction to Troubleshooting
62
Description and Components
75
Initial Dropout of Utility Source Voltage
80
Utility Voltage Dropout and Engine Cranking
82
Engine Startup and Running
84
Engine Shutdown
90
System Functional Tests
122
Major Disassembly
126
Electrical Data
129
Model 4389-0
130
Model 4389-0
131
Model 4456-0 & 4390-0
132
Model 4389-3
142
Model 4389-3
143
Model 4456-3 & 4390-3
146
Model 4456-3 & 4390-3
147
Wiring Diagram
151
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