Generac Power Systems 30 kW - User Manual

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Owner’s Manual

For

Spark-Ignited Stationary Emergency Generators

Residential and Commercial

This manual should remain with the unit.

This manual must be used in conjunction

with the appropriate installation manual.

*

NOT INTENDED FOR USE IN CRITICAL

LIFE SUPPORT APPLICATIONS.

*

ONLY QUALIFIED ELECTRICIANS OR

CONTRACTORS SHOULD ATTEMPT

INSTALLATION!

*

DEADLY EXHAUST FUMES! OUTDOOR

INSTALLATION ONLY!

22 kW 2.4L

25 kW 1.5L

27 kW 2.4L

30 kW 1.5L

32 kW 2.4L

36 kW 2.4L

38 kW 2.4L

45 kW 2.4L

48 kW 5.4L

60 kW 2.4L

Para español , visita:

http://www.generac.com/service‐support/product‐support‐lookup

Pour le français, visiter : http://www.generac.com/service‐support/product‐support‐lookup

Table of Contents

Questions and Answers

J
John MurrayAug 4, 2025
Why Generac Power Systems Portable Generator engine will not crank?
- S
  sandramorganAug 4, 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
Jennifer HarrisonAug 8, 2025
What to do if Generac Power Systems 30 kW unit shuts down during operation?
- K
  keithramirezAug 8, 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.
K
Kristina JeffersonAug 12, 2025
What to do if Generac Power Systems 30 kW engine cranks but will not start?
- E
  Ebony KelleyAug 12, 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.
R
ryan23Aug 17, 2025
How to fix no AC output from Generac Power Systems 30 kW?
- D
  David ParkAug 17, 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.
R
robinwilliamsAug 21, 2025
Why Generac Power Systems Portable Generator unit consumes large amounts of oil?
- C
  Cody MillerAug 21, 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.
S
Steven CampbellAug 25, 2025
Why Generac Power Systems Portable Generator engine starts hard and runs rough?
- D
  darrell23Aug 26, 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.
B
bowersbryanAug 29, 2025
What to do if Generac Power Systems Portable Generator unit will not start in AUTO with utility loss?
- J
  Julie SnyderAug 29, 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 30 kW Specifications

General

Frequency	60 Hz
Rated Output (kW)	30 kW
Power Output	30 kW
Voltage	120/240V
Fuel Type	Natural Gas / Liquid Propane
Noise Level	67 dB at 23 ft
Transfer Switch	Optional
Warranty	5-Year Limited

Summary

Safety

Introduction and Safety Alert Definitions

Safety Information and General Hazards

Rules for safe operation, maintenance, and general hazards.

Specific Hazard Warnings

Details on exhaust, electrical, fire, and explosion hazards.

Activation and Startup

Unit Activation Process

Step-by-step guide to activate the generator via website or phone.

Activation Settings and Engine Start

Operational Checks Overview

Electrical Checks and Load Testing

Verifying voltage, frequency, and performing load tests.

Automatic Operation and Final Instructions

Verifying auto operation and final installation steps.

Operation

Control Panel and Mode Selection

Overview of control panel and AUTO/MANUAL/OFF modes.

Menu Navigation System

Alarm;Warning Conditions and Time;Date Settings

Lists system alerts and how to set time/date.

Automatic Sequence of Operation

Steps for utility failure, cranking, and load transfer.

Manual Transfer Switch Operations

Maintenance

Service Maintenance Intervals Schedule

Schedule for A, B, and C maintenance tasks.

Service Preparation and Daily Tasks

Schedule A Maintenance Procedures

Coolant, Radiator, and Oil Level Checks

Replace Lubricating Oil and Filter

Step-by-step guide to replace engine oil and filter.

Replace Air Filter and Final Steps

Schedule B Maintenance: Coolant System

Spark Plug Maintenance and Schedule B Final Steps

Schedule C Maintenance and Return to Service

Troubleshooting

Engine Troubleshooting Guide

Table of common engine problems, causes, and solutions.

Controller Troubleshooting Guide

Table of controller alarms, problems, and solutions.

Service Removal and Storage Preparation

Storage Procedures and Return from Storage

Attention After Submersion

Critical warnings and actions if the generator is submerged in water.

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