Generac 00941-4 owner manual Troubleshooting Guide, Problem Cause Correction

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Section 4 – Troubleshooting

IMPACT-36 plus II Recreational Vehicle Generator

4.1TROUBLESHOOTING GUIDE

PROBLEM

CAUSE

CORRECTION

Engine won't crank.

1.

Fuse is blown.

1.

Replace 15 amp fuse.

 

2.

Loose corroded or defective

2.

Tighten, clean or replace

 

 

battery cables.

 

as necessary.

 

3.

Defective engine Start/Stop switch.

3.

Replace Start/Stop 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.

 

 

 

 

 

Engine cranks but won't start,

1.

Out of fuel.

1.

Replenish fuel.

low full load power.

2.

Fuel pump is defective (Gasoline), OR,

2.

Replace defective fuel pump

 

 

fuel solenoid is defective (LP).

 

or fuel solenoid.

 

3.

Open Wire #14 from Eng. Control Bd.

3.

Reconnect wire.

 

4.

Engine is flooded.

4.

Wait 5-10 min. before trying.

 

5.

Spark plug defective.

5.

Clean, regap or replace plug.

 

6.

Loose spark plug boot.

6.

Press boot on securely.

 

 

 

 

 

Engine starts hard, runs rough.

1.

Air cleaner plugged or damaged.

1.

Clean or replace as needed.

 

2.

Defective spark plug.

2.

Clean, regap or replace plug.

 

 

 

 

 

Engine starts, shuts down

1.

Engine oil is low.

1.

Check oil; add as needed.

when Start/Stop switch is

2.

Engine is overheated.

2.

Check adequate ventilation.

released.

3.

Defective Low Oil Pressure System

3.

Have serviced/replaced.

 

4.

Defective Control Board

4.

Have board serviced/replaced.

 

5.

Defective Computer Control Board.

5.

Have board serviced/replaced.

 

 

 

 

 

Start/Stop switch at Stop,

1.

Defective Start/Stop switch

1.

Replace switch.

engine continues to run.

2.

Open/disconnected wire #18 between

2.

Reconnect or close wire.

 

 

Start/Stop switch and Control

 

 

 

3.

Open/disconnected wire #0 between

3.

Reconnect or close wire.

 

 

Start/Stop switch & Control Bd.

 

 

 

4.

Defective Control Board

4.

Replace board.

 

 

 

 

 

No output from generator.

1.

Check circuit breaker.

1.

Reset to ON or CLOSED.

 

2.

Check vehicle circuit breaker & fuses.

2.

Reset and replace if necessary.

 

3.

Transfer sw. set to NORMAL position.

3.

Set to GENERATOR position.

 

4.

Generator internal failure.

4.

Take generator to an

 

 

 

 

Authorized Generac facility.

 

5.

Inverter defective.

5.

Take generator to an

 

 

 

 

Authorized Generac facility.

Generac® Power Systems, Inc. 35

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Contents Air-cooled Recreational Vehicle Generator Introduction Authorized Service Dealer LocationTable of Contents General Hazards Electrical Hazards Generator Identification General Information Generator Applicability SafetyGenerator Control Panel Before Starting the Engine Engine Protective DevicesStopping the Generator Starting the GeneratorCooling and Ventilating AIR Engine Exhaust GASLP Generator Specifications Operating PrecautionsEngine Specifications SubmersionChecking Engine OIL Level MaintenanceChange Engine OIL Change OIL FilterClean AIR Intake Screen Engine AIR CleanerCleaning the Generator Engine Spark PlugBattery Service and AdjustmentsAdjusting the Carburetor Adjusting Valve ClearanceReturn Unit to Service After Storage OUT of Service ProtectionExercising the Generator IMPACT-36 plus II Recreational Vehicle Generator Part General Hazards Fire Hazards Standards Booklets Purpose and Scope ManualEquipment Description Engine Generator Operating SpeedGenerator Location Location and SupportGenerator Support Suspended MountingGenerator Restraint Generator CompartmentsCompartment Construction Compartment SizeCompartment Floor Cutouts Sound Insulating MaterialsAcoustics Cooling and Ventilating AIRGenerator AIR Flow 11 Suspended Mount Inlet Door Cooling AIR Inlet OpeningsPropane GAS Fuel System Testing the InstallationCompensating for Restrictions Parts not Included in Fuel SystemVapor Withdrawal Some Important ConsiderationsPrimary Regulator Gaseous CarburetionFuel Supply Lines Exhaust SystemExcess Flow Valve Leakage TestsElectrical Connections Exhaust System SafetyType of Exhaust System Power Supply Cord Isolating Different Power SourcesGenerator AC Connection System 20 Transfer Switch Isolation Method Recommended Battery Battery InstallationBattery Cables Sensing HarnessBattery Cable Connections Optional AccessoriesBattery Compartment Remote PLUG-IN ReceptacleTesting Under Load Post Installation TestsBefore Initial Start UP Initial StartInstallation Checklist Problem Cause Correction Troubleshooting GuideElectrical Data Electrical Data Exploded Views and Parts Lists QTY Description Exploded Views and Parts Lists PLATE, Divider Exploded Views and Parts Lists ASSY, Connecting ROD 85 66 19 8 ENGINE, Long Block CASTING, Twin Regulator Installation Diagram California and Federal Emission Control Warranty Statement Emission Control System Warranty Warranty Schedule CONSUMER/PERSONAL Applications