Generac Power Systems 22 kW

Questions and Answers:

D
Daniel EdwardsJul 26, 2025
Why Generac Power Systems 22 kW Portable Generator engine will not crank?
- O
  obriensarahJul 26, 2025
  If your Generac Power Systems Portable Generator engine won't crank, here's what might be happening: * A blown fuse could be the culprit. Replace the 7.5 amp fuse in the generator control panel. If it blows again, there may be a short circuit that needs fixing. * Loose, corroded, or defective battery cables can also prevent cranking. Try tightening, cleaning, or replacing them as needed. * A defective starter contact or starter motor could also be the reason. Tighten, clean, or replace these components as necessary. * The battery might be dead. In this case, charge or replace the battery.
J
Jessica LongJul 30, 2025
What to do if Generac Power Systems 22 kW unit shuts down during operation?
- M
  Matthew TurnerJul 30, 2025
  If your Generac Power Systems Portable Generator unit shuts down during operation, it could be due to several reasons: * **High Temperature:** Ensure there's enough ventilation around the intake, exhaust, and rear of the generator. If there are no obstructions, contact a dealer. * **Overload:** Clear the alarm, remove loads from the generator, put back in AUTO, and restart. * **RPM Sense Loss:** Clear the alarm, remove loads from the generator, put back in AUTO, and restart. If the problem continues, contact a dealer to check for fuel issues.
B
Brandon HillAug 4, 2025
What to do if Generac Power Systems Portable Generator engine cranks but will not start?
- J
  Jeffrey LawrenceAug 4, 2025
  If your Generac Power Systems Portable Generator engine cranks but won't start, consider these potential causes: * **Out of fuel:** Replenish the fuel supply and ensure the fuel valve is turned on. * **Open F1 7.5 amp fuse:** Replace the F1 7.5 amp fuse. If it blows again, there might be an issue requiring further inspection. * **Open F2 15 amp fuse:** Replace the F2 15 amp fuse. If it blows again, further inspection may be needed. * **No fuel supply:** Make sure the fuel supply is turned on.
V
virginiaandersonAug 8, 2025
How to fix no AC output from Generac Power Systems 22 kW Portable Generator?
- J
  Julie CarlsonAug 8, 2025
  If your Generac Power Systems Portable Generator is not producing AC output, check if the main line circuit breaker is in the OFF (OPEN) position. If so, reset the circuit breaker to the ON (CLOSED) position.
H
Hailey FoxAug 12, 2025
Why Generac Power Systems 22 kW unit consumes large amounts of oil?
- A
  Andrew BurnsAug 12, 2025
  If your Generac Power Systems Portable Generator unit consumes large amounts of oil, the following reasons are possible: * The engine is overfilled with oil. Adjust the oil to the correct level. * The oil type or viscosity is incorrect. Refer to the Engine Oil Recommendations. * There is a damaged gasket, seal, or hose. Check for oil leaks.
E
Erica AdamsAug 17, 2025
Why Generac Power Systems 22 kW Portable Generator engine starts hard and runs rough?
- W
  whoffmanAug 17, 2025
  If your Generac Power Systems Portable Generator engine starts hard and runs rough, the air cleaner might be plugged or damaged. Inspect and replace the air cleaner if necessary.
C
christophercampbellAug 21, 2025
What to do if Generac Power Systems Portable Generator unit will not start in AUTO with utility loss?
- J
  Joseph WilliamsAug 21, 2025
  If your Generac Power Systems Portable Generator unit will not start in AUTO with utility loss, the following reasons are possible: * NOT ACTIVATED: Refer to activation section in Owner’s Manual. * LOW OIL PRESSURE: Check oil level. Add oil per Owner’s Manual. Contact servicing dealer if oil level is correct. * OVERCRANK: Clear alarm. Attempt to start the unit in MANUAL. If it does not start or starts and runs rough, contact servicing dealer. * OVERSPEED: Contact servicing dealer. * UNDER VOLTAGE: Contact servicing dealer. * UNDERSPEED: Contact servicing dealer. * MISWIRE: Contact servicing dealer. * OVERVOLTAGE: Contact servicing dealer.

Generac Power Systems 22 kW Specifications

General

Brand	Generac Power Systems
Model	22 kW
Category	Portable Generator
Language	English

Summary

Section 1 Safety

1.1 Introduction

Introduces the generator, its purpose, and installation requirements.

Safety Alerts and Symbols

Explains DANGER, WARNING, CAUTION, and safety symbols.

1.2 Safety Information

General safety rules for operating and servicing the equipment.

1.3 General Hazards

Details hazards like exhaust fumes, electrical shock, and moving parts.

1.4 Exhaust Hazards

Hazards associated with deadly carbon monoxide from exhaust.

1.5 Electrical Hazards

Dangers of electrical shock from high voltages.

1.6 Fire Hazards

Safety precautions related to fire prevention and extinguisher use.

1.7 Explosion Hazards

Precautions against explosion risks from fuel and debris.

Section 2 Specifications

2.1 Emission Information

Generator compliance with EPA emission standards.

2.1.1 Emissions Data Plate

Details on the data plate for EPA emissions verification.

2.2 Specifications

Technical specifications for various generator models.

2.3 Engine Oil Recommendations

Guidance on selecting and using engine oil for optimal performance.

2.4 Weather and Maintenance Kits

Information on available kits for different weather conditions and maintenance.

2.5 Coolant Water Treatment

Proper use of coolants and water treatment for the cooling system.

2.6 Fuel Requirements

Details on fuel system types and recommended fuel BTU content.

2.7 Reconfiguring the Fuel System

Procedure for converting the fuel system between NG and LPV.

2.7.1 Fuel Conversion Procedure from NG to LPV

Step-by-step guide to convert the fuel system from Natural Gas to LPV.

2.7.2 Change Fuel Selection

Instructions for changing the fuel type selection in the control panel software.

2.8 Battery Requirements

Specifications for battery types and dimensions for different engines.

2.8.1 Battery Charger

Information about the integrated smart battery charger.

2.9 Corrosion Protection

Recommendations for protecting the enclosure from corrosion.

Section 3 Activation and Startup

3.1 Orientation

Describes the physical orientation and key component locations.

3.2 Remove Side Access Panels

Instructions on how to remove the enclosure access panels.

3.3 Install Battery

Step-by-step guide for installing the generator battery correctly.

3.4 Open Viewing Window

How to open the viewing window to access the control panel.

3.5 Activate Unit

Process for activating the generator unit, including online activation.

3.6 Start and Run Engine

Procedure for starting and running the generator engine.

3.7 Operational Checks

Procedures for performing operational checks before use.

3.7.1 Self Test

How to perform a system self-test on the generator.

3.7.2 Check Manual Transfer Switch Operation

Instructions for checking the manual transfer switch functionality.

3.7.3 Electrical Checks

Steps for conducting electrical checks on the generator system.

3.7.4 Test Generator Under Load

Procedure for testing the generator under electrical load conditions.

3.7.5 Check Automatic Operation

How to verify the generator's automatic operation sequence.

3.8 Final Instructions

Concluding steps after installation and initial setup.

Section 4 Operation

4.1 Control Panel Overview

Overview of the generator's control panel and its functions.

4.2 AutoManualOff Modes

Explanation of the Auto, Manual, and Off operating modes.

4.3 Menu Navigation

Guide to navigating the control panel's menu system.

4.4 AlarmWarning Conditions

Lists and explains possible alarm and warning messages.

4.5 Change Time and Date

Procedure for setting the time and date on the control panel.

4.6 Programmable Timers

Information on programmable timers for generator operation.

4.6.1 Dealer Programmable Timers

Timers configured by a dealer, such as exercise time.

4.6.1.1 Exercise Time

Details on the programmable weekly exercise cycle for the generator.

4.6.2 User Programmable Timers

Timers that users can adjust, like start-up and warm-up delays.

4.7 USB Port for Firmware Updates

Information on using the USB port for firmware updates.

4.8 Battery Charger

Details about the integrated smart battery charger.

4.9 Transfer Switch Automatic Operation

How the generator operates automatically with the transfer switch.

4.9.1 Automatic Sequence of Operation

Step-by-step sequence of operation during utility failure.

4.9.1.1 Utility Failure Response

Describes the generator's response to a utility power failure.

4.9.1.2 Cranking Sequence

Details the cyclic cranking sequence for starting the engine.

4.9.1.3 Load Transfer

How loads are transferred to the generator based on operating mode.

4.10 Transfer Switch Manual Operation

Procedures for manually operating the transfer switch.

4.10.1 Transfer to Generator Power

Manual steps to transfer the load to generator power.

4.10.2 Transfer Back to Utility Power

Manual steps to transfer the load back to utility power.

Section 5 Maintenance

5.1 Component Locations

Identifies the location of major components on the generator.

5.1.1 Rear View Components

Diagram showing component locations on the rear of the unit.

5.1.2 Right Side View Components

Diagram showing component locations on the right side of the unit.

5.1.3 Left Side View Components

Diagram showing component locations on the left side of the unit.

5.2 Access Panels

Information on accessing the generator via side panels.

5.2.1 Panel Removal

Steps to remove the generator's access panels.

5.2.2 Panel Installation

Steps to install the generator's access panels.

5.3 Service Maintenance Intervals

Schedule of maintenance tasks based on hours or time.

5.4 Remove From Service

Procedure for safely taking the generator out of service.

5.5 30 Hour Break-In Maintenance

Specific task for the initial 30-hour break-in period.

5.6 Daily Maintenance

Routine maintenance tasks to be performed daily.

5.7 Schedule A Maintenance

Details for Schedule A maintenance tasks performed annually.

5.7.1 Schedule A Item Locations

Locations of components for Schedule A maintenance.

5.7.2 Preliminary Maintenance Instructions

Initial steps required before performing Schedule A maintenance.

5.7.3 Check Enclosure Louvers

Instructions for checking and cleaning enclosure louvers.

5.7.4 Check Fuel Lines

Procedure for inspecting fuel lines for leaks or damage.

5.7.5 Check Coolant Level and Hoses

How to check coolant levels and inspect hoses.

5.7.6 Check Radiator for Clogging

Procedure for inspecting the radiator for debris and clogging.

5.7.7 Check Lubricating Oil Level and Drain Hose

Instructions for checking the engine oil level and drain hose.

5.7.8 Replace Lubricating Oil and Oil Filter

Steps for replacing the engine oil and oil filter.

5.7.9 Check Battery ConditionFluid Level

How to check the battery's condition and fluid level.

5.7.9.1 Check Battery Condition and Clean

Procedure for cleaning and checking the battery's physical condition.

5.7.9.4 Battery Replacement

Detailed steps for replacing the generator battery.

5.7.10 Check and Adjust AccessoryDrive Belt

How to check and adjust the generator's accessory drive belts.

5.7.10.1 Belt Check

Visual inspection of the accessory/drive belt condition.

5.7.10.2 Belt Adjustment

Instructions for adjusting the accessory/drive belt tension.

5.7.11 Replace Air Filter Element

Steps for replacing the engine's air filter element.

5.7.12 Final Instructions (Schedule A)

Concluding steps after performing Schedule A maintenance.

5.8 Schedule B Maintenance

Details for Schedule B maintenance tasks performed every two years.

5.8.1 Schedule B Item Locations

Locations of components for Schedule B maintenance.

5.8.2 DrainFlush Coolant System

Procedure for draining and flushing the engine's cooling system.

5.8.3 CleanGapReplace Spark Plugs

Steps for cleaning, gapping, or replacing spark plugs.

5.8.4 Final Instructions (Schedules A & B)

Concluding steps after performing Schedule A and B maintenance.

5.9 Schedule C Maintenance

Details for Schedule C maintenance tasks performed after 1000 hours.

5.10 Return To Service

Procedure for returning the generator to service after maintenance.

5.11 Lube Oil Maintainer System

Information about the automatic lube oil maintainer system.

5.11.1 Lube Oil Maintainer System Description

Overview of the Lube Oil Maintainer System's function.

5.11.2 Fill Oil Supply Tank

Procedure for filling the oil supply tank for the maintainer system.

5.11.3 Test Lube Oil Maintainer Functionality

How to test the functionality of the lube oil maintainer.

5.11.4 Lube Oil Shutoff Valve

Information on the shutoff valve for the lube oil system.

Section 6 Troubleshooting

6.1 Engine Troubleshooting

Table of common engine problems, causes, and corrections.

6.2 Controller Troubleshooting

Table of controller alarms, problems, and solutions.

6.3 Removal From Service During Utility Outages

Procedure for removing the unit from service during outages.

6.4 Storage Preparation

Guidelines for preparing the generator for storage.

6.4.1 Prepare For Storage

Steps to prepare the generator for long-term storage.

6.4.2 Return From Storage

Procedure for returning the generator to service after storage.

6.5 Attention After Submersion

Precautions and procedures if the generator is submerged in water.

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Generac Power Systems 22 kW

Table of Contents

Questions and Answers:

Generac Power Systems 22 kW Specifications

Summary

Section 1 Safety

1.1 Introduction

Safety Alerts and Symbols

1.2 Safety Information

1.3 General Hazards

1.4 Exhaust Hazards

1.5 Electrical Hazards

1.6 Fire Hazards

1.7 Explosion Hazards

Section 2 Specifications

2.1 Emission Information

2.1.1 Emissions Data Plate

2.2 Specifications

2.3 Engine Oil Recommendations

2.4 Weather and Maintenance Kits

2.5 Coolant Water Treatment

2.6 Fuel Requirements

2.7 Reconfiguring the Fuel System

2.7.1 Fuel Conversion Procedure from NG to LPV

2.7.2 Change Fuel Selection

2.8 Battery Requirements

2.8.1 Battery Charger

2.9 Corrosion Protection

Section 3 Activation and Startup

3.1 Orientation

3.2 Remove Side Access Panels

3.3 Install Battery

3.4 Open Viewing Window

3.5 Activate Unit

3.6 Start and Run Engine

3.7 Operational Checks

3.7.1 Self Test

3.7.2 Check Manual Transfer Switch Operation

3.7.3 Electrical Checks

3.7.4 Test Generator Under Load

3.7.5 Check Automatic Operation

3.8 Final Instructions

Section 4 Operation

4.1 Control Panel Overview

4.2 AutoManualOff Modes

4.3 Menu Navigation

4.4 AlarmWarning Conditions

4.5 Change Time and Date

4.6 Programmable Timers

4.6.1 Dealer Programmable Timers

4.6.1.1 Exercise Time

4.6.2 User Programmable Timers

4.7 USB Port for Firmware Updates

4.8 Battery Charger

4.9 Transfer Switch Automatic Operation

4.9.1 Automatic Sequence of Operation

4.9.1.1 Utility Failure Response

4.9.1.2 Cranking Sequence

4.9.1.3 Load Transfer

4.10 Transfer Switch Manual Operation

4.10.1 Transfer to Generator Power

4.10.2 Transfer Back to Utility Power

Section 5 Maintenance

5.1 Component Locations

5.1.1 Rear View Components

5.1.2 Right Side View Components

5.1.3 Left Side View Components

5.2 Access Panels

5.2.1 Panel Removal

5.2.2 Panel Installation

5.3 Service Maintenance Intervals

5.4 Remove From Service

5.5 30 Hour Break-In Maintenance

5.6 Daily Maintenance

5.7 Schedule A Maintenance

5.7.1 Schedule A Item Locations

5.7.2 Preliminary Maintenance Instructions

5.7.3 Check Enclosure Louvers

5.7.4 Check Fuel Lines

5.7.5 Check Coolant Level and Hoses