Generac 004371-2, 004188-1, 004475-1, 004474-1, 004370-2, 004189-1 owner manual Troubleshooting Points

Page 20

Section 5 — Troubleshooting

Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators

PERIODIC REPLACEMENT PARTS

Part Name

Generac’s Part Number

Oil Filter

# 0A45310244

Radiator Cap

# 046627

Air Cleaner

# 059402

Spark Plug

# 0A45310275

 

 

TROUBLESHOOTING POINTS

PROBLEM

CAUSE

CORRECTION

Engine won’t crank.

1.

30 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.

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 OFF,

1.

Defective Auto/Off/Manual switch

1.

Replace switch.

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 Generac

 

 

 

 

facility.

 

5.

Thermal circuit breaker open.

5.

Auto-reset - Wait 5 min. and

 

 

 

 

attempt restart.

18 Generac® Power Systems, Inc.

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Contents Power SYSTEMS, INC Authorized Service Dealer Location Operation and MaintenanceHOW to Obtain Service IntroductionIntroduction IFC Safety Rules General Hazards Electrical Hazards Transfer Switch GeneratorAutomatic System Operation Generator AC Connection SystemsHigh Coolant Temperature Switch LOW OIL Pressure SwitchLOW Coolant Level Switch Engine Protective DevicesLifting the Generator SpecificationsUnpacking Torque Specifications Before InstallationFuel Consumption Engine OIL RecommendationsStandby Generator Installation Generator LocationOther Published Standards Nfpa StandardsBasic Standby Electric System Total Circuit Isolation MethodGrounding the Generator Emergency Circuit Isolation MethodVented Batteries Transfer Switch Start Signal ConnectionsBattery Installation Prior to Initial START-UP Using a Standard GTS Transfer SwitchPreparation Before START-UP Control Console Components Meter Reading Selector Switch SET Exercise Time SwitchManual Transfer and Start UP Retransfer and Shutdown Automatic OperationEngine Heater Cooling SystemOverload Protection for Engine DC Electrical System Checking Fluid LevelsMaintenance OWNER/OPERATOR can Perform Changing the Engine AIR Cleaner Coolant ChangeMiscellaneous Maintenance Cleaning the GeneratorBattery Battery ReplacementTroubleshooting Points Service Maintenance Interval Information Level Maintenance Level Electrical Data Electrical Data Electrical Data AC Outlet Outlet AC Circuit FED Ground Wire Assembly BRACE, SideBumper DOOR, EnclosureGenerac Power Systems, Inc Washer Nylon Hinge Slip Male LHHinge Slip Female LH Hinge Slip Male RHGenerac Power Systems, Inc CMA BOX Assembly Rocker Switch DpstSWITCH, Selector AMP/VOLT SWITCH, Toggle DpdtGenerac Power Systems, Inc Switch 6A AMP/V Selector Harness Wiring 1.5LDECAL, TRANS. Switch Conn Switch Dpst 5 125V SPD RckrGenerac Power Systems, Inc Tank Coolant Recovery Bracket Coolant Recovery TankSupport Radiator Radiator 1.5LGenerac Power Systems, Inc Venturi 1.5L Guard FANHose RES 5/8 RIA 250F NUT HEX M6 -1.0 G8 YEL CHRBASE, Mounting ISOLATOR-VIBRATIONISOLATOR, Vibration Flat WASHER-M8Dampener Vibration Washer Flat M8Earth Strap Washer Shakeproof EXT 5/16 STLMuffler W/RAIN Shld Mufflr Strap 6IN DIAElbow 90 DEG 2 NPT Nipple TOE 2 NPT X 4.5 BLK IronManifold Exhaust 1.5L Nipple TOE 1.5 NPT X 6.5 BL IronPipe Exhaust Flex Pipe ExhaustSilkscreen P Panel Cover BQ Circuit BreakerBracket Mounting Circuit Breaker Circuit Breaker 70 X 2 240V 39782 BrktHarness CMA Wire Assy Home Stdby LogicDECAL, CMA Label PP Logic ASM 50/60HZASSY,WIRE#16 RED Bolt Battery Hold DownBAR Battery Holddown Battery Post Cover RED+Housing Governor Connector Connector Interface AssemblyCover Connector Housing Assembly Carburator LinkageGenerac Power Systems, Inc Housing Blower Assy Rotor 10KWAssy Rotor 15KW Assy Rotor 20KWGenerac Power Systems, Inc Cover AIR Cleaner Weldment Mounting BaseFlange Fuel Inlet Solenoid GAS FuelGenerac Power Systems, Inc Switch OIL Pressure ARM Adjust AlternatorGround Wire Starter ENGINE-1.5LInstallation Air Outlet Air Intake Installation Air Intake PURCHASER’S/OWNER’S Warranty Responsibilities Your Warranty Rights and ObligationsMANUFACTURER’S Emission Control System Warranty Coverage Emission Control System Warranty Emission Related Parts Include the FollowingWarranty Schedule This Warranty Shall not Apply to the Following

004371-2, 004188-1, 004474-1, 004475-1, 004370-2 specifications

Generac Power Systems is renowned for its commitment to providing reliable power solutions, and their various models, including the Generac 004189-1, 004370-2, 004475-1, 004474-1, and 004188-1, showcase the company’s innovative engineering and technology. Each of these models is designed to meet diverse energy needs, ensuring homeowners and businesses can maintain power during outages or in remote locations.

The Generac 004189-1 is an essential model in the lineup known for its robust construction and user-friendly interface. It features a powerful engine, ensuring reliable power output and efficient fuel consumption. Additionally, its lightweight design makes it portable, allowing easy relocation to different sites. The model integrates advanced technology for automatic voltage regulation, safeguarding sensitive electronics while operating.

Moving on to the Generac 004370-2, this model emphasizes advanced start-up technology. It is equipped with a reliable electric start feature, minimizing the effort required to power up the generator. Its noise-dampening design significantly reduces sound levels, making it ideal for residential use without causing disturbances to neighbors. The unit also includes a durable metal enclosure that helps protect the generator from the elements and increases its lifespan.

The Generac 004475-1 model stands out for its enhanced fuel efficiency and low emissions. This eco-friendly design adheres to strict emissions regulations, making it a suitable choice for environmentally conscious users. Its intuitive control panel provides easy monitoring of power output, fuel levels, and maintenance needs, ensuring users can efficiently manage their energy requirements.

Similarly, the Generac 004474-1 exemplifies convenience and performance with its dual fuel capability, allowing it to operate on both gasoline and propane. This flexibility ensures users can easily switch fuels based on availability and cost-effectiveness. The model also boasts an extended runtime, capable of powering essential appliances and systems for prolonged periods during outages.

Finally, the Generac 004188-1 emphasizes ease of use, featuring a comprehensive user manual and a straightforward assembly process. The model provides ample power capacity, making it excellent for both emergency back-up and recreational activities. Its compact design allows storage in confined spaces, while its efficient cooling system prevents overheating during extended use.

Overall, these Generac models reflect the company's dedication to innovation, quality, and user satisfaction. With features aimed at enhancing convenience, performance, and environmental responsibility, they cater to the varying power demands of modern users.
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