Guardian Technologies 004270-3 owner manual Troubleshooting Guide, Problem Cause Correction

Page 39

Appendix 1 – Troubleshooting

QUIETPACT™ 75D Recreational Vehicle Generator

TROUBLESHOOTING GUIDE

PROBLEM

CAUSE

CORRECTION

The engine will not crank.

1.

System control fuse blown

1.

Replace fuse.

 

2.

Loose corroded or defective

2.

Tighten, clean, or replace,

 

 

battery cables

 

as necessary.

 

3.

Defective engine Start/Stop

3.

Replace Start/Stop switch.

 

 

switch

 

 

 

4.

Defective starter contactor

4.

Replace contactor.

 

5.

Defective starter motor

5.

Replace starter motor.

 

6.

Low or defective battery

6.

Charge or replace battery.

 

7.

Defective engine control board

7.

Replace control board.

The engine cranks but

1.

Vehicle fuel shutoff valve closed

1.

Open valve, if so equipped.

will not start.

2.

Out of fuel

2.

Replenish fuel.

 

3.

Defective fuel solenoid (FS)

3.

Replace solenoid.

 

4.

Defective fuel pump (FP)

4.

Repair or replace fuel pump.

 

5.

Open #14 wire from

5.

Check connections and

 

 

engine control board

 

insulation of #14 wires.

 

6.

Plugged fuel filter or fuel line

6.

Clean or replace fuel filter or line.

 

7.

Engine mechanical parts failure

7.

Repair or replace parts.

 

8.

Defective engine control board

8.

Replace control board.

The engine starts hard

1.

Plugged or damaged

1.

Check, clean, or replace, as needed.

and runs rough.

 

air filter

 

 

 

2.

Defective fuel pump (FP)

2.

Repair or replace fuel pump.

 

3.

Plugged fuel filter or fuel line

3.

Clean or replace fuel filter or line.

 

4.

Water in fuel

4.

Drain fuel system and refill.

 

5.

Improper preheat

5.

Preheat unit.

The engine starts, but shuts

1.

Low engine oil level

1.

Check oil and add oil, as needed.

down when the Start/Stop

2.

Overheated engine

2.

Check cooling system for leaks.

switch is released.

3.

Defective Start/Stop Switch

3.

Disconnect Remote Harness

 

 

on panel or remote Start/Stop

 

Check/Replace Start/Stop Switch

 

4.

Defective low-oil

4.

Replace pressure switch.

 

 

pressure switch

 

 

 

5.

Defective high-coolant

5.

Replace temperature switch.

 

 

temperature switch

 

 

 

6.

No AC output

6.

Contact a Generac Authorized

 

 

 

 

Service Dealer

 

7.

Defective engine control board

7.

Replace control board.

The Start/Stop switch is

1.

Defective Start/Stop switch

1.

Replace switch.

set to Stop, but the engine

2.

Open/Disconnected #18 wire

2.

Reconnect or close wire.

continues to run.

 

between Start/Stop switch

 

 

 

 

and engine control board

 

 

 

3.

Open/Disconnected #0 wire

3.

Reconnect or close wire.

 

 

between Start/Stop switch

 

 

 

 

and engine control board

 

 

 

4.

Defective engine control board

4.

Replace control board.

There is no AC output from

1.

Main-line circuit breaker open

1.

Reset line breaker

the generator.

 

 

 

to ON (or closed).

 

2.

Fault with vehicle circuit

2.

Reset and replace, if necessary.

 

 

breaker and/or fuses

 

 

 

3.

Generator internal failure

3.

Contact a Generac Authorized

 

 

 

 

Service Dealer.

Generac® Power Systems, Inc. 37

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Page 38 Page 40
Contents Liquid-cooled Recreational Vehicle Generator Introduction Authorized Service Dealer LocationTable of Contents Part II Installation InstructionsGeneral Hazards Electrical Hazards Generator Identification ModelQuietpact 75D Generator AC Connection System SafetySpecifications Generator ApplicabilityEngine Fuel Consumption GAL/HREngine OIL Requirements CoolantGenerator Control Panel Optional Remote START/STOPBefore Starting the Engine Starting the Generator Protection Systems Stopping the Generator1 25-HOUR BREAK-IN Period Additional InformationOverspeed Shutdown Overvoltage ProtectionEffects of Moisture and Dirt Checking the Engine OIL LevelChanging the Engine OIL AND/OR OIL Filter Operation in High Grass or BrushSpark Arrestor Muffler Servicing the Engine AIR FilterBattery Maintenance Cleaning the GeneratorExercising the Generator Cooling SystemEngine Coolant Drive BeltOUT-OF-SERVICE Procedure Removal from ServiceReturn to Service Service Schedule Part General Hazards Fire Hazards Generator Engine Operating Speed Purpose and Scope ManualStandards Booklets Equipment DescriptionMajor Features and Dimensions Suspended Mounting Location and SupportGenerator Location Generator SupportGenerator Compartments Generator RestraintCompartment Construction Acoustics Sound Insulating MaterialsTypical Noise Abatement 2.2.4 Compartment Floor Cutouts Cooling and Ventilating AIR Cooling AIR Inlet OpeningsGenerator Airflow Testing the Installation Diesel Fuel SystemCompensating for Restrictions Fuel Tank Generator Fuel Supply LinesGenerator Fuel Return Lines Exhaust System Safety Exhaust SystemMuffler and Spark Arrestor Generator AC Connections WiringElectrical Connections Electrical Junction BOXVolts Only Dual Circuits Generator Coversion toPower Supply Cord Isolating Different Power SourcesConduit Battery Cable Connections Battery InstallationRecommended Battery Battery Cables Optional Accessories Battery Compartment Remote START/STOP Connections Initial Start Post Installation TestsTesting Under Load Before Initial StartupInstallation Checklist Problem Cause Correction Troubleshooting GuideAppendix 2 Notes Appendix 2 Notes Appendix 3 Electrical Data Appendix 3 Electrical Data Appendix 3 Electrical Data Wiring Diagram 120 VAC- Drawing No. 0D2793-B Part Part NO. QTY Description 677mm Frame Control Panel Refer to Drawing Hose, ¾ SAE-20R3 Gasket, Electrical Enclosure Divider To Engine AIR Intake 0C6946A Fuel Pump Assembly 023484F Snap Bushing 052219 1917 2118 11 29 32 33 QTY Description Complete Cylinder Block Cylinder Head Assembly Complete Crankshaft Idler Gear Assembly Rocker ARM Assembly Injection Pump Assembly Fuel Filter HOUSING, Timing Gear OIL PAN 1413 Appendix 5 Notes Parts Covered Federal and California Emissions Control Warranty StatementYour Warranty Rights and Obligations Manufacturers Warranty CoverageObtaining Warranty Service Obligations and Rights of the Manufacturer and OwnerLimitations Warranty Schedule CONSUMER/PERSONAL Applications
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