STX Mega-Steam 4000 SX2 User manual

INSTRUCTION MANUAL

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CONGRATULATIONS!
Thank you for your purchase of the STX Mega-Steam 4000-SX2 Steam
Cleaner. Steam cleaning is one of the easiest, most eco-friendly, and
safe ways to clean, sanitize, and deodorize many of your common
household surfaces without harsh chemicals.
According to the Center for Disease Control and Prevention (CDC),
temperatures above 167°F will kill most known household bacteria
(i.e. e-coli, listeria, and salmonella), mold, mildew, influenza viruses, and
bed bugs. Utilizing steam cleaning you can expect to sanitize and clean
contaminated and filthy areas including the following:
• Soil-sealed flooring • Steam Removal of Bed Bugs
• Shower Walls & Shower Heads • Glass Shower Doors & Runners
• Bath Tubs • Toilets & Bidets
• Sinks & Faucets • Stove Tops & Fronts
• Baby Changing Tables • Waste Cans
• Range Vents & Hoods • Range Burners
• Remove/Sanitize Mold & Mildew • Tile & Grout
• Doorknobs • Toys & Stuffed Animals
• Clothes - Sanitize & Remove Wrinkles • Shoes
• Spot Clean Carpet & Area Rugs • Spot Clean Drapery & Pillows
DISCLAIMER
This is NOT a Commercial Steam Cleaner. The STX Mega-Steam 4000
SX2 Steam Cleaner is specifically designed for household cleaning,
deodorizing, sanitizing, bed bug removal and wrinkle removal. As is
true for all steam cleaners of this size, tank capacity, wattage, and price
range, you cannot expect it to handle commercial size activities like auto
engine degreasing, grill cleaning, and such.
CAUTION!
• Steam may result in bleaching of painted or varnished wood.
• Steam may discolor shiny plastics.
• Use caution when using steam with acrylic, linen, leather, silk,
velvet, and any other surfaces that would be harmed by water.

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PRECAUTIONS
READ ALL INSRUCTIONS PRIOR TO USE!
1. This steam cleaner is only for use with 110/120V. Do not use
another high wattage appliance in the same outlet. This steam
cleaner does not work on 210/220Volts.
2. Only use the original accessories and components for the Mega-
Steam 4000-SX2 Steam Cleaner.
3. Use a GFI or GFCI grounded outlet.
4. Do not modify this unit in anyway. Do not use extension cords or
any type of power adaptor.
5. Never operate this steam cleaner without filling the water tank to
the correct level before use.
6. Disconnect the steam cleaner from the electrical outlet prior to
filling, draining water, cleaning, or maintenance. Allow the steam
cleaner to cool down so that no steam is present prior to refilling
the water tank.
7. Ensure that the safety cap has been securely tightened prior to
use. The safety cap is spring loaded and needs to be pushed down
while tightening and untightening.
8. Only move the steam cleaner by the handle on the top of the unit.
Do not drag the unit by the flexible hoses.
9. Only use distilled water with this steam cleaner. Tap water will
cause a build up of calcium deposits in the tank. Do not use
additives in the tank like alcohol, cleaning agents, or scenting
agents as they will damage the unit.
10. Do not add more than 1.5 liters of water to the tank. This allows
for adequate room in the tank for steam production. If the tank is
too full, steam production will not happen. This will cause water to
spray out instead of steam.
11. Please check fabric labels prior to using any steam cleaner. Some
fabrics may be sensitive to high steaming temperatures. It is
recommended to check the effect of steam cleaning on a small
inconspicuous area of a fabric before full treatment.
12. Be careful not to touch any of the metal parts of the steam cleaner
during use. Steam produced by this unit can reach temperatures
greater than 220°F and can cause serious burns. Do not steam
clothing when being worn by humans or animals. Never aim this
steam cleaner at a person, animal, or plant. Scalding will occur.
Do not aim steam at or near electrical cords, wires, or intact,
functioning electrical outlets.

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13. Do not tip the unit during operation or in any way cause water
leakage from the water/steam tank.
14. Never attempt to unscrew the safety cap when the switch is in the
ON position. Pressure is present and will cause hot steam/water to
escape before cooling.
15. Do not immerse the appliance, power cord or plug in water. Keep
the appliance away from rain and moisture. The steam cleaner is
not designed for extensive outdoor use.
16. Condensation may form on the end of the accessory being used
and is normal. The longer the accessory(ies) being used, the
greater the chance for water condensation due to the cooling of
the steam over distance. Residual hot water may be present in
accessories, attachments and nozzles between refill/reheating
times when the unit is turned off. Allow 5 to 10 minutes of cooling
time prior to cleanup or contact with these pieces.
17. Do not place the steam cleaner or any of its components near an
open flame, a cooking appliance while in use, or any other heating
appliances.
18. Do not leave the steam cleaner unattended while in use or during
the cool down period. Keep out of the reach of children and infants.
Use the available child lock when children are present.
19. Do not unplug the power cord by pulling on the cord. Never unplug
this unit with wet hands. Turn the unit to the OFF position prior to
unplugging the steamer.
20. Regularly check the steam cleaner, power cord, and accessories
for damage. Do not operate a damaged steam cleaner or operate
a steam cleaner with damaged accessories or attachments. Do
not operate the steam cleaner with a damaged power cord.
21. The steam cleaner has a temperature sensitive thermostat and
will automatically shut off once the correct temperature has been
achieved. The steam cleaner has an automatic pressure release
valve that will activate when excessive pressure is detected. If the
thermostat and the pressure release valve fail, the steam cleaner
has a thermal cut-off function that will activate and shut off the
power to the unit. If this occurs, unplug the steam cleaner and
contact STX International Service Center (See Contact Information
on the back of this manual).
22. Use the steam cleaner only as described in this manual. Other
uses are not recommended and may cause fire, electrical shock,
and damage to the unit and personal property of the user.

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PACKAGE CONTENTS
1 - Main Unit Steam Cleaner with Storage Compartment
1 - Steam Gun with 5’ (60”) Steam Hose
2 - Steam Extension Tubes
1 - Large Floor Brush Accessory
1 - Floor Brush Adapter
1 - Small Utility Steamer Accessory
1 - Window Squeegee Attachment
1 - Front Accessory Adapter (Part 1) (Located in Main Unit Storage)
1 - Back Accessory Adapter (Part 2)
1 - Small Nylon Brush (Located in Main Unit Storage)
1 - Small Metal Brush (Located in the Main Unit Storage)
1 - Small Bent Nozzle (Located in the Main Unit Storage)
1 - Package of Extra Red O-Rings (2 sizes)
1 - Package of Extra Clear O-Rings
5 - 100% Cotton Booties for Small Utility Steamer Accessory
3 - 100% Cotton Booties for Floor Brush Accessory
TECHNICAL SPECIFICATIONS
Voltage: 110/120V - 60Hz
Power: 1500 Watts
Steam Pressure: <0.8 MPa, 116 PSI
Tank Capacity: 2.0 Liters (1.5L water/.5L steam)
Rated Water Capacity: 1.5 Liters (approx. 50 ounces)
Steam Availability: ~80 min/tank
Heating Time: 10 minutes
Steam Flow 50 g/min
Temperature: 160°C
Fuse Switch: 240°C
Dimensions: 17.1”L x 10.6”W x 8.7”H
Weight: 9.26 lbs. (main unit)

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UNPACKING
1. Unpack the steam cleaner and all of its accessories. Check to ensure
that all components are present. You may wish to keep the box and
inner packing for storage and transportation. If there has been any
damage during shipment, please contact STX International (See
Contact Information on the back of the manual).
2. Some residual condensation may be present in the water tank due
to quality control testing at the factory prior to shipping. This distilled
water need not be removed and the unit is safe to use.
3. Please read the ENTIRE instruction manual prior to using.
PARTS: ASSEMBLY & PURPOSE
Main Unit with Accessory Storage Inside of Front Lift-Off Lid
Control Panel – (L to R) Red Power LED, ON/OFF Button,
Steam Flow Intensity Knob, & Green Steam-Ready LED

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Steam Gun with Flex Hose Steam Extension Tubes
Small Utility Steamer Accessory Window Squeegee Attachment
Large Floor Brush Accessory Floor Brush Adapter
Small Nylon Brush Small Metal Brush Small Bent Nozzle

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Front Acessory Adapter (Part 1) Back Accessory Adapter (Part 2)
Assembly of Front Accessory Adapter (Part 1) to
Back Accessory Adapter (Part 2)
Complete Accessory Adapter Fully Assembled (Part 1 & 2)
Back Accessory Adapter Attached to Steam Gun
Back Accessory Adapter Attaching to Steam Gun

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OPERATION & PREPARATION
1. The steam hose, steam gun, and all desired accessories must be
connected to the main unit prior to powering on the unit.
2. When using accessories except the large floor brush accessory
and small utility steamer accessory, it is ALWAYS necessary to first
connect the front accessory adapter (Part 1) to the back accessory
adapter (Part 2). (See pictures below). These two components
together make up the complete accessory adapter.
Complete Accessory Adapter Attached To Steam Gun
Small 100% Cotton Booties Large 100% Cotton Booties
Front Acessory Adapter (Part 1) Back Accessory Adapter (Part 2)
The two accessory adaptors lock by twisting clockwise approximately
one-quarter turn. This is the Complete Assembled Accessory Adapter.

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The bent nozzle, small nylon brush, and small metal brush can be
attached to the complete accessory adapter for maximum steam
cleaning, sanitizing, and deodorizing.
PLEASE NOTE: PRIOR TO EACH USE, ENSURE THAT THE O-RINGS
ARE PRESENT TO ENSURE PROPER SEALING. Replacement O-rings
have been provided in case of loss or damage occurs. Damaged or
missing O-rings will cause water blow by and steam loss.
3. Two extension tubes have been provided with the STX Mega-Steam
unit. To attach the first extension tube to the steam gun, line up the
hole in the extension tube with the push bottom locking mechanism
on the steam gun - firmly and carefully push the two components
together until they click into place. An additional extension tube can
be attached to the initial extension tube the same way as the first tube
was attached to the steam gun.
NOTE:
• Toremovetheextensiontubes,justpressthebuttononthe
extensiontubeorsteamgunandcarefullypullthetwounits
apart.
• Thefurthersteamtravelsthroughcomponents,themoreit
cools.Formaximumtemperatureeffect,usetheleastamount
ofextensiontubesaspossible.
Then the Complete Assembled Accessory Adapter can be attached to
the Steam Gun or to one of the Extension Tubes. Always ensure that the
Accessory Adapters click into place so that they are firmly connected.
Complete Accessory Adapter Attached to Steam Gun

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4. The Small Utility Steamer Accessory- suggested uses: aggressive
floor tile cleaner, window cleaner with squeegee attachment, garment
steamer, etc
The small utility accessory attaches to an extension tube by aligning
the locking mechanism on the extension tube with the hole on the
small utility accessory and firmly connecting the two until they click
together.
NOTE:
• Toremovethesmallutilityaccessorypressthebuttononthe
extensiontubeandpullaparttheunits.
• Fivecottonbootieshavebeenprovidedtocoverthesmall
utilityaccessoryduringusetocontroldripping.
5. The small utility accessory can also be used to steam clean windows
by attaching the window squeegee attachment. To attach the window
squeegee attachment align the cleats on the window squeegee
attachment with the corresponding receptables on the small utility
accessory (See pictures below). Snap the two pieces together.
NOTE:
• Toseparatethetwounitsgraspthemandslightlypullonthe
snapattachmentonthesqueegeetofreethesqueegeefrom
thesmallutilityaccessory.
Window Squeegee Attachment Window Squeegee Attachment
Attached to Adapter

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TIPSforfabricsteamwrinklecontrol,deodorizingandsanitizing:
• Checktoensurethatfabricwillnotbedamagedbyhighheat.
• Holdthegarmentorfabricwithyourhandorwithaclothes
hanger.
• Steamthegarmentorfabricwiththesteamgunstartingatthe
bottomandworkingupwardtowardthetopofthematerialwithout
directsteamapplicationtoanyonepointforlongperiodsoftime.
Becarefulnottodirectthesteamtowardyourexposedskin.
Scaldingwilloccurifcareisnottaken.
• Gentlytugatthebase(thesleevesforexample)ofthegarment
intermittentlytostretchoutthewrinklesasneeded.
• Collarsmaytakeadditionalsteamingtocontrolwrinkles.
6. The Large Floor Brush Accessory - suggested uses: floor sanitizing &
deodorizing, less aggressive floor tile cleaning, etc.
The floor brush accessory attaches to an extension tube via the floor
brush adapter. To connect the floor brush adapter to the floor brush
accessory locate and line up the arrows on each component. Insert
the floor brush adapter into the floor brush accessory (See pictures
below). Turn the floor brush adapter one-half turn (180°) to secure
the two units together. The completed unit then can be attached to an
extension tube as previously described.
NOTE:
• Toremovethefloorbrushaccessoryandfloorbrush
adapter,simplyreversetheprocess.
• Threelargecottonbootieshavebeenprovidedtocoverthe
bristlesonthefloorbrushaccessory,ifdesired.Toplace
thelargecottonbooties,simplystretchthebootieoverthe
brushendofthefloorbrushaccessoryandpushdownon
thespringtabsoneithersideofthetopofthefloorbrush
accessorytosecurethebooties.
Adapter & Floor
Brush Accessory
Floor Brush
Accessory Aligned to
Adapter
Adapter Twisted
to Fully Connect
to Floor Brush
Accessory

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OPERATION
1. Attach the flexible hose on the back of the steam gun to the front of
the steam cleaner. Open the flap on the front of the steam cleaner
while holding the hose connector with the arrow visible and pointing at
the the steam cleaner opening. Press the hose connector firmly into
the opening until it clicks into place (See pictures below).
NOTE:Toreleasetheflexiblehose,pressinbothreleasebuttonson
eithersideofthehoseconnectorandpullthehoseconnectorfromthe
steamcleaneropening.
Open Flap on Front of Main Unit &
Hose Connector Ready to Insert
Hose Connector Attached
to Main Unit
2. Prior to filling the steam cleaner with distilled water, ensure that the
unit is NOT plugged into the outlet and is turned OFF. The safety cap
is spring loaded and pressure sensitive. To unscrew the saftey cap,
press down on the cap and turn it counter-clockwise. Fill the tank with
1.5 liters of water (DO NOT overfill!). This will allow for adequate
area in the tank for steam production. To close the safety cap, push
down and turn clockwise until tight.
Note:Monitorthewaterlevelinthetankandrefillasnecessary.
3. Turn the steam flow intensity knob clockwise until it is tight. This
turns the steam flow off. Once you are ready to begin steaming, you
can adjust the intensity of the steam by turning this knob counter-
clockwise to the desired steam intensity.
4. To refill the tank, turn OFF the main unit. Squeeze the steam trigger
on the steam gun to release the residual steam, unplug the unit and
allow it to cool for 15 to 30 minutes. The safety cap is designed to not
open until the unit has cooled sufficiently. Once the unit has cooled,
squeeze the steam trigger again to release any residual pressure.
Return to step 2.
CAUTION: Hot steam may escape while opening the tank! Care
must be taken while opening and closing to prevent scalding!

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5. Select and attach the desired accessory (See previous section).
6. Plug the steam cleaner into an electrical outlet. Set the ON/
OFF button to ON. The red LED will light up at this time. It takes
approximately 10 minutes for the steam cleaner to produce super-
heated steam. The green LED will light up when the unit is ready to
operate.
7. Squeeze the trigger on the steam gun to check steam production and
begin steam cleaning.
8. Monitor the steam production and water level. The green LED will turn
off when the steam reservoir is depleted. If there is still plenty of water
in the tank, release the steam gun trigger and wait 8-10 seconds for
the steam reservoir to replenish. The green LED will light up again
and you can continue steaming.
NOTES:
• Adjustthesteamflowintensityknowcounter-clockwiseto
getdesiredsteamintensity.
• Thelengthoftimeforcontinuoussteamwillvarybasedon
howhighthesteamflowcontrolknobisset.Thehigher
itisset,themoreoftenyouwillneedtoallowtheunitto
replenishthesteamresevoir.
• Forthefirst3-5secondswhenyoustartthesteamflowa
smallamountofwatermaybereleased.Watercondensation
occursinthetank,flexiblehose,andanyattachmentsbeing
used.Thiswillquicklybereplacedby98%steam.
• Thechildlockyellowbuttononthesteamgunwillprevent
thetriggerfromfunctioningwhenitispressed.
TIPS:
• Forbestresults,movethesteamgun/accessorybackandforth
ontheobjectbeingsteamedratherthandirectingthesteamat
anyonepointforlongperiodsoftime.
• Theflowrateofsteamcanberegulatedwiththesteamflow
controlknobonthebaseofthesteamcleaner.

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CLEANING
Allow 15-30 minutes for the unit to cool when steaming is complete.
This cooling period is necessary for operator safety. The safety cap
WILL NOT open until the tank has cooled completely. After this cooling
period, squeeze the trigger to release any additional pressure prior to
unscrewing the safety cap.
Surface Cleaning:
1. Clean the housing of the steam cleaner with a dampened cloth.
2. Do not use cleaning agents, abrasives or alcohol on the housing.
3. Wipe off any excess moisture with a dry cloth.
Tank Maintenance:
1. Clean the tank every 3 months.
2. Remove the safety cap.
3. Fill the tank with clean distilled water, rinse thoroughly, and drain the
tank. Repeat this process 2 or 3 times for best results.
4. Allow the tank to dry completely prior to replacing the safety cap.
STORAGE
• Always ensure that the unit is in the OFF power setting and
disconnect the steam cleaner from the power source prior to any
cleaning or storage.
• Prior to cleaning or storage, squeeze the trigger on the steam gun
to release any pressure built up inside of the boiler tank.
• Allow proper cooling time of 15 to 30 minutes if the steam cleaner
has been used recently.
• Unscrew the safety cap carefully at all times to prevent inadvertent
hot steam release and scalding.
• Always allow the steam cleaner to cool down and dry completely
before storing.
• Keep out of the reach of children at all times.

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TROUBLE SHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
The red LED
fails to light.
The appliance is not
plugged into an outlet.
The appliance is not
switched on.
The outlet is faulty.
The power cord is
damaged.
Insert the plug into an outlet
and turn the unit on.
Turn the unit on.
Plug the steamer into
different outlet.
Have the power cord
repaired.
No steam is
emitting when
operating.
The child lock is
engaged.
The water tank is
empty.
Disengage the child lock.
Fill the tank with no more
than 1.5 liters of water.
Very limited
steam flow.
The steam flow
control knob is set to
minimal or low setting.
Missing or damaged
O-rings.
Turn the steam flow control
to the desired level of steam
flow.
Check and replace any
damaged or missing O-rings.
Prolonged
time to heat
up.
The water tank has
been clogged with
calcium.
Remove the calcium build
up and always used distilled
water to prevent calcium
damage.

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GENERAL SAFETY RULES
SAVE THESE INSTRUCTIONS!
Refer to them often and use them to instruct others
on the proper use of this product.
Read and fully understand all instrctions and warnings prior to using this unit.
Failure to comply with procedures and safe guards may result serious injury or
property damage. Your personal safety is your responsibilty!
1. KEEP AWAY FROM CHILDREN AND PETS - THIS IS NOT A TOY! Always
monitor the unit while in use and never leave the unit plugged in around
an unmonitored child/pet. Teach your children the proper respect for all
electrical appliances. YOU are responsible for the safety of any children in
the vicinity of this unit. ADULT SUPERVISON IS REQUIRED AT ALL TIMES!
2. Check for damaged parts prior to use. Check that all parts are operating
properly and perform their intended functions. DO NOT use if the power cord
is damaged or frayed, or if at any time the power cord becomes damaged
or frayed or if the unit does not seem to be functioning as it normally has for
you in the past.
3. ALWAYS disconnect this unit from the power source before servicing,
changing accessories, cleaning or storing. Unplug the unit when it is not in
use. NEVER plug this unit into an already damaged electrical outlet.
4. Make sure the power button is in the OFF position prior to unplugging from
or plugging into an outlet.
5. DO NOT use sharp utensils (i.e. forks, knives, picks, tongs, etc.,) inside any
part of this unit. Do NOT modify this unit - This will void the warranty.
6. The manufacturer and seller of this unit do NOT assume ANY responsiblity
in the case of improper use of this unit or improper monitoring of this unit
when in use. Improper use of this product voids all warranties/guarantees.
7. ANY type of major service must be done by STX International/Mercantile
Station 2, LTD. Proof of purchase must be provided by consumer prior to any
repair/service. The seller will use only factory original parts and accessories.
Modification of the electrical or any other major component of this unit by the
consumer voids the guarantee/warranty. (See Contact Information on back
of this manual)
8. Do NOT pull the power cord to unplug, unplug by the plug end. Do NOT use
extension cords with this appliance. Use of extension cords will VOID the
guarantee/warranty.
9. To prevent electric shock do NOT immerse the main unit in water or liquid.
Serious injury from electric shock could result. Do NOT operate near running
water or in areas where condensation can collect.
10. Do NOT use under the influence of drugs or alcohol.

All STX International Products come with a 3-Year Guarantee, valid only
in the 48 Contiguous United States. If you purchase this product and ship
it to a destination outside of the 48 Contiguous United States this warranty
becomes null and void.
The first 30 Days are covered by a Money Back or Replacement
Guarantee from the date of the receipt of the product. If your product
becomes damaged in shipment or is found to be defective in any way
during this period, we will replace or issue a complete refund for your
product upon return. We will pay all shipping involved during this first 30-
day period.
The remainder of the 3 Years (after the first 30 days) is covered by a
FREE REPAIR Guarantee (parts and labor included). If anything becomes
defective during this period we will fix the issue and provide a full service
inspection to your product, shipping (to & from) will be paid by the buyer.
Please email us at [email protected] to set up a service request.
Returns of New/Unused Products
If you have Buyer's Remorse and decide that you do not want the product,
it must be returned NEW & UNUSED in the original box and you will pay
the return shipping. PLEASE NOTE: There will be a 10% Restocking Fee
and original Shipping Costs (if applicable) will not be refunded. Used
product cannot be returned.
3-YEAR
WARRANTY
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STX International
2159 Magnum Circle, Lincoln, NE 68522
[email protected] • www.STXInternational.com
How To Register Your Warranty
Go to www.STXInternational.com. Click on "Register Your Warranty" tab
and fill out the form. This is a fully secure website. Your information will
never be sold or misused in any way. This registration site is strictly for
order verification that will be used to speed up the process should you
ever need to use your Warranty for service.
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QUESTIONS, PROBLEMS
OR COMPLIMENTS?
Thank You for purchasing this
STX International Product!
We are grateful for your business!
All of our STX International Products are inspected then
sealed with our NEW Product Seal prior to shipment.
Our goal is to ensure Quality, Completeness, and
Satisfaction for your order.
For Any Questions, Problems, or
Compliments please call or email us.
If you would like to shop for other STX International Products
Please visit our website
www.STXInternational.com
Toll Free: 844-861-4762
[email protected]
Our Business Hours are:
Monday - Thursday: 8am - 4pm CST
Friday: 8am - Noon CST
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