Guardian Technologies 004988-4 owner manual Troubleshooting Points, Problem Cause Correction

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Section 5 — Troubleshooting

Liquid-cooled 30 kW Generators

TROUBLESHOOTING POINTS

PROBLEM

CAUSE

CORRECTION

Engine won’t crank.

1.

15 amp fuse blown.

1.

Replace fuse.

 

2.

Loose or corroded or defective

2.

Tighten, clean or replace

 

 

battery cables.

 

battery cables as necessary.

 

3.

Defective starter contactor.

3.

Replace contactor.

 

4.

Defective starter motor.

4.

Replace starter motor.

 

5.

Dead or Defective Battery.

5.

Remove, change or replace battery.

 

6.

4 amp fuse blown.

6.

Replace fuse.

 

 

 

 

 

Engine cranks, but won't start

1.

Out of fuel.

1.

Replenish fuel.

 

2.

Fuel solenoid (FS) is defective

2.

Replace solenoid.

 

3.

Open Wire #14 from Engine Control

3.

Reconnect wire.

 

 

circuit board.

 

 

 

4.

Spark plugs defective.

4.

Clean, regap or replace plugs.

 

 

 

 

 

Engine starts hard, runs rough.

1.

Flame arrestor (air cleaner) plugged or

1.

Clean or replace as needed.

 

 

damaged.

 

 

 

2.

Plugged fuel line.

2.

Unclog fuel line.

 

3.

Defective spark plugs.

3.

Clean, regap or replace plugs.

 

 

 

 

 

Engine starts, then shuts down.

1.

Engine oil level is low.

1.

Check oil and add oil as needed.

 

2.

Engine is overheated.

2.

Check cooling system for leaks.

 

3.

Defective Low Oil Pressure Switch

3.

Replace switch.

 

4.

Defective Coolant Temperature Switch

4.

Replace switch.

 

5.

Defective Control Module circuit board.

5.

Replace board.

 

6.

Coolant Level is Low.

6.

Repair leak - Add coolant.

 

7.

Defective Low Coolant Level Switch

7.

Replace Switch.

 

 

 

 

 

AUTO/OFF/MANUAL Switch at,

1.

Defective AUTO/OFF/MANUAL switch

1.

Replace switch.

OFF engine continues to run

2.

Open/disconnected wire #15A between

2.

Reconnect/close wire.

 

 

AUTO/OFF/MANUAL switch and Control

 

 

 

 

Module circuit board.

 

 

 

3.

Defective Control Module circuit board

3.

Replace board.

 

 

 

 

 

No AC output from generator.

1.

Check main line circuit breaker.

1.

Reset to ON or CLOSED.

 

2.

Check circuit breaker & fuses.

2.

Reset and replace, if necessary.

 

3.

Transfer switch set to NORMAL position

3.

Set to GENERATOR position.

 

4.

Generator internal failure.

4.

Contact an Authorized facility.

 

5.

Thermal circuit breaker open.

5.

Auto-reset - Wait 5 min. and

 

 

 

 

attempt restart.

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Contents Liquid-cooled, Prepackaged Standby Generators ‹ Operation and Maintenance Authorized Service Dealer Location‹ HOW to Obtain Service IntroductionTable of Contents  Warning   Electrical Hazards  Generator Transfer SwitchAutomatic System Operation Generator AC Connection Systems‹ 1.7.1 LOW OIL Pressure Switch ‹ 1.7.2 High Coolant Temperature Switch‹ 1.7.3 LOW Coolant Level Switch LOW OIL Presure Switch LOW Coolant Level SwitchLifting the Generator UnpackingReconfiguring the Fuel System Specifications‹ 1.10.1 Generator Specifications ‹ 1.10.2 Engine SpecificationsStandby Generator Installation Torque SpecificationsBefore Installation Engine OIL RecommendationsBasic Standby Electric System Generator Mounting Support‹ 2.1.2 Other Published Standards Emergency Circuit Isolation Method Transfer Switch Signal ConnectionsTotal Circuit Isolation Method Grounding the GeneratorPreparation Before START-UP Battery Installation‹ 2.9.2 GTS-TYPE ATS Using AN Engineered GTS Transfer Switch ‹ 3.2.2 Fault Indicator LED ‹ 3.2.1 AUTO/OFF/MANUAL Switch‹ 3.2.5 SET Exercise Time Switch Control Console ComponentsManual Transfer START-UP Engine Governor AdjustmentsRetransfer and Shutdown Automatic OperationCooling System Weekly Exercise CycleChecking Fluid Levels Overload Protection for Engine DC Electrical System‹ 4.5.8 Check FAN Belt ‹ 4.5.11 Changing the Engine AIR Cleaner‹ 4.5.9 Inspect Engine Governor ‹ 4.5.10 Changing Engine OIL‹ 4.6.3 Battery Maintenance Miscellaneous Maintenance‹ 4.6.1 Cleaning the Generator ‹ 4.5.13 Coolant Change‹ Periodic Replacement Parts ‹ 4.6.4 Battery ReplacementService Maintenance Interval Information Scheduled MaintenanceLevel Maintenance Level Problem Cause Correction Troubleshooting PointsLiquid-cooled 30 kW Generators Installation Diagram AUTO/OFF/MANUAL Switch Transfer SwitchSET Exerciser Switch Size AWGBAT Otherwise Noted AS ShownIgnition Coil On PCBSWITCH, SET Exerciser SWITCH, AUTO/OFF/MANUALDPE ALT 12V Battery REDDEG Starter Motor GOVEngine Foot Battery Post Cover Baclk Boot Battery CableBattery Post Cover RED + Hold Down BatteryTo a To B Plcs Intake Duct HSB Assy Wire 14AWG 7.5 #0 GRN/YELDuct Discharge RH Front Duct Discharge LH FrontPage Control BOX HSB Assy 2A 12V UL BatteryDecal AVR Cover Cover Front Panel HSBCooled 30 kW Drawing No Exploded Not SHOWN-USED to Hold OIL Drain Assembly Wire SET 3.0L Ford notCoil Ignition 3.0L Ford Bracket DC ALT 3.0L FordFrame Radiator R-IN,L-OUT Tank Coolant RecoveryVenturi 3.0L Ford HSB Side Support Radiator HSBTo B Flange Fuel Inlet Weldment Mounting BaseAssy Regulator 3.0L NG or LPV Washer Flat 5/16 ZincLocktight Rotor 390 20KW 1P Direct HSB 2.5L Ford Rotor 390 15KW 1P Direct HSB 2.5L FordRotor 390 25KW 1P Direct HSB 2.5L Ford Rotor 39030AD1 HSB TecumPipe Muffler OUT Exhaust Flange 2 PipeWasher Lock 3/8 SS Gasket Exhaust RingElement AIR Cleaner Plate AIR Cleaner AdapterCover AIR Cleaner Adapter Carburetor W/PVC ConnWarranty Schedule

004988-4 specifications

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