DUROMAX XP9000IH User manual

XP9000IH INVERTER GENERATOR
This manual provides information regarding the operation
and maintenance of these products. We have made every
effort to ensure the accuracy of the information in this
manual. We reserve the right to change this product at
any time without prior notice.
5800 Ontario Mills Pkwy
Ontario, CA 91764 USA
www.DuroMaxpower.com
Call our Customer Care Team Toll Free 8-5pm PST Mon-Fri
844-DuroMax
User Manual
REV: XP9000iH-12032020

1.
Introduction .................................................................................................................... 6
General Safety Procedures ........................................................................................... 8
Quick Start Guide (Gasoline) ....................................................................................... 14
Quick Start Guide (Propane)........................................................................................ 16
Generator Components............................................................................................... 18
Package Contents ......................................................................................................... 20
Introduction
3.
Checking the Oil ........................................................................................................... 28
Check the Gas Level ..................................................................................................... 29
Starting the Generator Using Gasoline ...................................................................... 30
Starting the Generator Using Propane....................................................................... 32
Starting the Generator Using Remote Start .............................................................. 36
Starting the Generator
2.
Connect the Battery...................................................................................................... 22
Adding Oil ...................................................................................................................... 23
Adding Gasoline ............................................................................................................ 24
Grounding the Generator ........................................................................................... 25
High Altitude Operation .............................................................................................. 25
Generator Setup
4.
AC Usage ........................................................................................................................ 40
Connecting a Load to the Generator.......................................................................... 42
Using the Generator
CONTENTS

5.
6.
7.
Maintenance Schedule.................................................................................................. 46
Maintenance Log ........................................................................................................... 47
Checking the Oil ............................................................................................................ 48
Changing the Oil............................................................................................................. 49
Cleaning the Air Filter .................................................................................................... 50
Spark Plug Maintenance ............................................................................................... 52
Storage and Transportation ......................................................................................... 54
Specications.................................................................................................................. 55
.......................................................................................................................... 60
Basic Troubleshooting .................................................................................................. 58
Maintenance and Care
Warranty
Troubleshooting
8. .................................................................................................. 64
Contact Information
CONTENTS

6
The DuroMax Way is a commitment to excellence. This vision is focused on the quality, reliabil-
ity, and durability of our products combined with outstanding customer service. We understand
that having dependable power whenever and wherever you need it provides comfort, safety, and
peace of mind. It is through this philosophy that DuroMax achieves our vision of...
THE DuroMax WAY
The DuroMax Way is more than just a brand, it is our understanding and appreciation of just how
important power can be to someone without it…
DuroMax FOR HOME
Electricity in our home not
only provides comfort but
safety as well. From keeping
the heat or A/C on to keeping
our food cold, power is
essential to our daily lives.
Inevitability when disaster
strikes and we are left without
power for a prolonged period
of time, our way of life is
put at risk. This is by far the
most critical time for reliable
portable power.
DuroMax FOR WORK
On the job site, portable
power allows you the ability
to get work done in remote
locations when traditional
power sources are usually
unavailable. Equipment like
table saws, sanders, and
work lights are a necessity
and portable power can
play a critical role in getting
a job done successfully and
eciently.
DuroMax FOR PLAY
Camping outdoors in a
remote location can get one
in touch with nature and allow
them to forget the stress of
the day to day grind. Here
portable power can provide
comfort as well as safety. With
portable power, you can keep
your cell phone charged, light
up your campsite, or even
brew a cup of coee, all while
being miles from civilization.

7
INTRODUCTION
Notice Regarding Emissions
DuroMax Power Equipment is headquartered in Ontario, California and is the industry’s leader in
Dual Fuel portable generator technology. In addition to a full assortment of portable generators
ranging from digital inverters to large 15,000-watt portable standby units, their product line
includes pressure washers, engines, pumps, and accessories.
The foundation of our company is built on quality, reliability, durability, and customer service. At
DuroMax our vision is simple, we are committed to Powering Everyone... Anywhere!
STOP
Please do not return
to the store.
DuroMax representatives are ready to help you
with any questions, concerns, or issues about your
new product. We can guide you through assembly,
start up, and how to operate your new generator.
We want you to be able to put your new generator
to use right away!
CALL US BEFORE YOU CONSIDER
RETURNING THE PRODUCT!
1-844-DUROMAX
TOLL-FREE
Engines that are certied to comply with U.S. EPA emission regulations for SORE (Small o Road
Equipment), are certied to operate on regular unleaded gasoline and may include the following
emission control systems: (EM) Engine Modications and (TWC) Three-Way Catalyst (if so equipped).

8
SAFETY ALERT SYMBOL
DANGER:This generator produces poisonous carbon monoxide gas when running. This
gas is both odorless and colorless. Even if you do not see or smell gas, carbon monoxide
may still be present. Breathing this poison can lead to headaches, dizziness, drowsiness,
and eventually death.
●Use outdoors ONLY in non-conned areas.
●Keep several feet of clearance on all sides to allow proper ventilation of the generator.
WARNING: The exhaust from this product contains chemicals known to the State of
California to cause cancer, birth defects, or other reproductive harm.
WARNING: This generator produces heat when running. Temperatures near exhaust can
exceed 150°F (65°C).
●Do not touch hot surfaces. Pay attention to warning labels on the generator denoting
hot parts of the machine.
●Allow generator to cool several minutes after use before touching engine or areas
which heat during use.
The safety alert symbol is used with one of the safety words (DANGER,
CAUTION, or WARNING) to alert you of hazards. Please pay attention to
these hazard notices both in this manual and on the generator.
GENERAL SAFETY PROCEDURES
Please familiarize yourself with the following safety symbols and words:
●DANGER: Indicates a hazard that will result in serious injury or death if instructions are not
followed.
●WARNING: Indicates a strong possibility of causing serious injury or death if instructions are not
followed.
●CAUTION: Indicates a possibility of personal injury or equipment damage if instructions are not
followed.

9
WARNING: This generator may emit highly ammable and explosive gasoline vapors,
which can cause severe burns or even death. A nearby open ame can lead to an
explosion even if not directly in contact with gasoline.
●Do not operate near an open ame.
●Do not smoke near the generator.
●Always operate on a rm, level surface.
●Always turn the generator o before refueling.
●Allow generator to cool for at least 2 minutes before removing the fuel cap. Loosen
cap slowly to relieve pressure in the tank.
●Do not overll the gas tank. Gas may expand during operation. Do not ll to the top
of the tank.
●Always check for spilled gas before operating.
●Empty the gasoline tank before storing or transporting the generator.
●Before transporting, turn the fuel valve to the o position and disconnect
the spark plug.
WARNING:This generator produces a powerful voltage, which can result in electrocution.
●ALWAYS ground the generator before using it (see the “Grounding the Generator”
portion of the “PREPARlNG THE GENERATOR FOR USE section).
●The generator should only be plugged into electrical devices, either directly or with
an extension cord. NEVER connect to a building electrical system without a qualied
electrician. Such connections must comply with local electrical laws and codes. Failure
to comply can create a back-ow of power, which may result in serious injury or death
to utility workers.
●Use a ground fault circuit interrupter (GFCI) in highly conductive areas such as metal
decking or steelwork. GFCls are available in-line with some extension cords.
●Do not use uncovered in rainy or wet conditions.
●Do not touch bare wires or receptacles (outlets).
●Do not allow children or non-qualied persons to operate.

Serial Number
Serial number format
STAPLE RECEIPT HERE
The serial number will be shown in two parts. The engine
model, followed by the serial number.
Engine Model: _____________________________________________
Serial Number: _____________________________________________
A purchase receipt may be necessary for warranty parts or
service in the future. If you have a paper receipt staple it
here for easy reference.
If you purchased the unit online, save the email receipt
where you can access it, and record your details here for
convenience in the future.
Purchase Date: ____________________________________________
Order Number: ____________________________________________
Retailer Name: _____________________________________________
Serial Number
The serial number is located on the engine block, above and
to the left of the oil ll.
UNIT AND PURCHASE INFORMATION
10

As the only safe way to use a portable generator, taking your
generator outside is absolutely mandatory to keep your family
safe from carbon monoxide. But there’s even more you can do.
By educating yourself about all carbon monoxide risks, you’ll
be better prepared to protect your family from this colorless,
odorless threat. Visit takeyourgeneratoroutside.com for more
information.

QUICK START
The Quick Start of your generator is the minimum necessary setup that will get you going as soon
as possible.

14
QUICK START GUIDE (GASOLINE)
Add gasoline
The fuel cap is located on top of the fuel tank. Fill the tank
with fresh unleaded gasoline 87 octane or higher. The tank
is full when you see fuel in the bottom of the fuel lter cup.
DO NOT overll the tank.
3.
Add oil
The oil ll cap is located on the lower engine block to the
right of the recoil start housing. Remove the oil ll cap and
ll with 10w30 oil.
2.
5. Turn breaker o
The breaker is located on the left side of the front power
panel. Flip the breaker down to prevent accidental load
when starting the generator.
4.
1.
Select Gasoline Fuel
The Fuel Selector is located on the left side of the front
power panel. Flip the switch up to select gasoline as a fuel
source.
Turn gas valve on
The gas valve is located the left hand side of the panel.
Rotate the valve counterclockwise to the Fuel ON (RUN)
position to turn on the gasoline supply.
Add gasoline
The fuel cap is located on top of the fuel tank. Fill the tank
with fresh unleaded gasoline 87 octane or higher. The tank
is full when you see fuel in the bottom of the fuel lter cup.
DO NOT overll the tank.
3.
Add oil
The oil ll cap is located on the lower engine block to the
right of the recoil start housing. Remove the oil ll cap and
ll with 10w30 oil.
2.
5. Turn breaker o
The breaker is located on the top center of the front power
panel. Flip the breaker down to prevent accidental load
when starting the generator.
4.
1.
Select gasoline fuel
The fuel selector is located on the left side of the front
power panel. Flip the switch up to select gasoline as a fuel
source.
Turn gas valve on
The gas valve is located the left hand side of the panel.
Rotate the valve counterclockwise to the fuel on (run)
position to turn on the gasoline supply.

15
Press the start button
The start button is located on the left side of the power
panel. Press the button down for 1 - 3 seconds to start the
generator.
8.
Connect devices
Connect your devices to the receptacles on the front panel.
Start with the largest loads rst.
10.
Turn start switch on
The start switch is located on the left side of the front
power panel next to the Low Idle. Press the switch up to
the start position to all the generator to start.
7.
Turn breaker on
The breaker is located on the right side of the front power
panel. Flip the breaker up to allow the power to ow to the
receptacles.
9.
6. Turn Low Idle o
The Low Idle is located on the left side of the front power
panel, next to the breaker. Flip the switch down to disable
Low idle when starting the generator.
Press the start button
The start button is located on the left side of the power
panel. Press the button down for 1 - 3 seconds to start the
generator.
8.
Connect devices
Connect your devices to the receptacles on the front panel.
Start with the largest loads rst.
10.
Turn start switch on
The start switch is located on the left side of the front
power panel next to the Low Idle. Press the switch up to
the start position to all the generator to start.
7.
Turn breaker on
The breaker is located in the top center of the front power
panel. Flip the breaker up to allow the power to ow to the
receptacles.
9.
6. Turn low idle o
The low idle is located on the left side of the front power
panel, next to the fuel choice switch. Flip the switch down
to disable low idle when starting the generator.

Add gasoline
The fuel cap is located on top of the fuel tank. Fill the tank
with fresh unleaded gasoline 87 octane or higher. The tank
is full when you see fuel in the bottom of the fuel lter cup.
DO NOT overll the tank.
3.
Add oil
The oil ll cap is located on the lower engine block to the
right of the recoil start housing. Remove the oil ll cap and
ll with 10w30 oil.
2.
5. Turn breaker o
The breaker is located on the left side of the front power
panel. Flip the breaker down to prevent accidental load
when starting the generator.
4.
1.
Select Gasoline Fuel
The Fuel Selector is located on the left side of the front
power panel. Flip the switch up to select gasoline as a fuel
source.
Turn gas valve on
The gas valve is located the left hand side of the panel.
Rotate the valve counterclockwise to the Fuel ON (RUN)
position to turn on the gasoline supply.
Connect propane hose
The LPG inlet is located on the bottom left of the front
panel. Connect the propane hose to both the inlet and the
propane tank. Open the propane tank.
3.
Add oil
The oil ll cap is located on the lower engine block to the
right of the recoil start housing. Remove the oil ll cap and
ll with 10w30 oil.
2.
5. Turn breaker o
The breaker is located in the top center of the front power
panel. Flip the breaker down to prevent accidental load
when starting the generator.
4.
1.
Select LPG fuel
The fuel selector is located on the left side of the front
power panel. Flip the switch down to select LPG as a fuel
source.
Turn gas valve o
The gas valve is located the left hand side of the panel.
Rotate the valve counterclockwise to the fuel o (store)
position to turn o the gasoline supply.
QUICK START GUIDE (PROPANE)
16

Press the start button
The start button is located on the left side of the power
panel. Press the button down for 1 - 3 seconds to start the
generator.
8.
Connect devices
Connect your devices to the receptacles on the front panel.
Start with the largest loads rst.
10.
Turn start switch on
The start switch is located on the left side of the front
power panel next to the Low Idle. Press the switch up to
the start position to all the generator to start.
7.
Turn breaker on
The breaker is located on the right side of the front power
panel. Flip the breaker up to allow the power to ow to the
receptacles.
9.
6. Turn Low Idle o
The Low Idle is located on the left side of the front power
panel, next to the breaker. Flip the switch down to disable
Low idle when starting the generator.
Press the start button
The start button is located on the left side of the power
panel. Press the button down for 1 - 3 seconds to start the
generator.
8.
Connect devices
Connect your devices to the receptacles on the front panel.
Start with the largest loads rst.
10.
Turn start switch on
The start switch is located on the left side of the front
power panel next to the low idle. Press the switch up to
the start position to all the generator to start.
7.
Turn breaker on
The breaker is located in the top center of the front power
panel. Flip the breaker up to allow the power to ow to the
receptacles.
9.
6. Turn low idle o
The low idle is located on the left side of the front power
panel, next to the fuel choice switch. Flip the switch down
to disable low idle when starting the generator.
17

GENERATOR COMPONENTS
18
2. Air Filter
6. Wheels
5. Power Panel
1. Battery Compartment - The 12V DC battery that powers the electric start system is located
under this cover.
2. Air Filter/Spark Plug - The air lter a removable element that cleans the air going into the
engine and the spark plug which provides ignition to the engine are under this cover.
3. Fuel Tank and Gauge - Indicates the amount of fuel in the gasoline tank.
4. Handles - Allow for easy steering during transportation.
5. Power Panel - Allows access to ll the gasoline tank.
6. Wheels - Solid wheels allow for easy transportation over any terrain.
7. Multimeter - Provides information of Hours Run, Voltage, Hertz, and current load on the
generator measured in kW.
8. Start Up Switch - Allows power to the starter and panel. Prevents accidental starting.
9. Circuit Breaker - Resettable switch that protects the generator from electrical overload.
10. Parallel Ports – Allow you to combine the output of two generators for maximum power.
11. USB Outlets – 5v DC Output in USB-A and USB-C for charging batteries or running USB
powered items.
3. Handles
1. Battery Compartment
4. Fuel Tank

7. Multimeter
12. Battery Tender – Easily keep your battery charge when the generator is in storage by using the
included 120v battery charger.
13. ATS Plug - Allows use with automatic transfer switches.
14. 120v GFCI Receptacle - Use to connect electrical devices that run 120 Volt, 60 Hz, single phase
AC current (NEMA 5-20).
15. 120v 3-Prong Twist Lock - Use to connect electrical devices that run 120 Volt, 60 Hz, single
phase, AC current (L5-30).
16. 240v 4-Prong Twist Lock - Use to connect electrical devices that run 120/240 Volt, 60 Hz, single
phase, AC current (L14-30).
17. Start Button - Starts and shuts down the generator.
18. LPG Inlet – Connects the LPG inlet to the LPG hose/regulator.
19. Fuel Valve - On/O valve that allows gasoline into the engine.
20. Fuel Switch - GAS/LPG valve that changes the fuel into the engine.
21. Low Idle - Lowers the engine speed to match the load to save on fuel and reduce noise levels.
19
9. Circuit Breaker
10. Parallel Ports
11. USB Outlets
12. Battery Tender
8. Start Up Switch
19. Fuel
Valve
16. 4-Prong
Twist-Lock
15. 3-Prong
Twist-Lock
14. 120v GFCI
13. ATS
Plug
17. Start Button 14. 120v GFCI
20. Fuel
Switch
21. Low
Idle
18. LPG Inlet

PACKAGE CONTENTS
Your generator comes with the items listed below. Please check to see that all of the following
items are included with your generator.
●Note: Actual tools may dier in appearance or design from image shown.
Double Sided
Screw Driver
Oil Funnel w/ hose
Spanner Spark Plug Wrench
Plug Ends
Phillips and slot blade
screwdriver used for generator
maintenance.
Used to add oil to the
generator without messy spills.
Assorted wrenches used in
generator maintenance and
assembly. Commonly 8mm,
12mm
Used in spark plug
maintenance, inspection, and
installation.
Plug heads for the receptacles
found on the generator are
included to make or rewire
your own cords.
20
Battery Tender
Used to charge the battery
when in storage