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Electric High-Pressure Washer - Operator’s Manual
Before operating this product, please read this manual thoroughly and retain it for
future reference.
MC1500
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1-866-902-9690
www.MightyCleanUSA.com
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Do not return product to place of purchase. If you have any
questions, call our toll-free hotline.
1-866-902-9690
www.MightyCleanUSA.com
Page 3
Before each use, please read all of the safety precautions.
Please pay particular attention to all sections with the following symbols:
Could cause injury or death if not followed.
Could damage machine if not followed.
When using this product, basic precautions should always be followed, including:
1 Read all instructions before using the product.
2 To reduce the risk of injury, do not operate the product near children.
3 Learn how to stop this product and release pressure quickly. Be thoroughly familiar with the controls.
4 Stay alert - watch what you are doing.
5 Do not operate this product when fatigued or under the influence of alcohol or drugs.
6 Keep operating area clear of all people and pets.
7 Do not stand on unstable surfaces. Do not overreach or stand on unstable support. Keep good
footing and balance at all times.
8 Follow the maintenance instructions specified in the manual.
9 This product is provided with a Ground Fault Circuit Interrupter (GFCI) built into the
power cord. If replacement of the plug or cord is needed, use only manufacturer replacement parts.
10 This product or its power cord contains lead, a chemical known to cause cancer, birth defects or
other reproductive harm. Wash hands after handling.
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WARNING
WARNING
CAUTION
Important Safety Instructions..................................................................................................1
Safety Features……………………….....................................................................................4
Parts List and Diagram...........................................................................................................5
Assembly and Operation Instructions.....................................................................................6
Machine Assembly.................................................................................................6
Operation Instructions............................................................................................8
Working with Detergents........................................................................................8
Taking a Break........................................................................................................9
Shutting Down and Cleaning Up............................................................................9
Winterizing and Long-Term Storage.....................................................................................10
Cleaning and Maintenance...................................................................................................11
Troubleshooting.....................................................................................................................12
Technical Data......................................................................................................................16
Warranty................................................................................................................................17
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS
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Risk of Injury
Injection Hazard
• Product can cause serious injury if the spray penetrates the skin.
• Do not point the gun at anyone or any part of the body. In case of penetration, seek medical aid
immediately.
Risk of Injury
Do not direct discharge stream at self or other persons.
• High-pressure jet can be dangerous if misused.
• The jet must not be directed at persons, animals, electrical devices, or the product itself.
Risk of Explosion - Do Not Spray Flammable Liquids
• Do not use acids, alkaline, solvents or any flammable material in this product. These products can
cause physical injuries to the operator and irreversible damage to the pressure washer.
Risk of Electric Shock
• High-pressure jet can be dangerous if misused.
• The jet must not be directed at persons, animals, electrical devices, or the product itself.
Gun Kicks Back
• Hold with both hands.
• The trigger handle safety lock prevents the trigger from being engaged accidentally.
• This safety feature DOES NOT lock trigger in the “On” position.
1. Never operate the product without all components properly connected to the product (handle, gun/
wand assembly, nozzle, etc.).
2. Never operate pressure washer with broken or missing parts. Check product regularly and repair
or replace worn or damaged parts immediately.
3. Never put hand or fingers over the nozzle or spray tip while operating the product.
4. Never spray flammable liquids or use pressure washer in areas containing combustible dust, liquids
or vapors. An electric spark could cause an explosion.
5. Never leave the wand unattended while the product is running or switched on.
6. Never disconnect the high-pressure discharge hose from the product while the system is
pressurized. To release pressure from the product, turn power and water supply off, then depress
trigger 2-3 times.
7. Never cover the pressure washer during operation to allow free air cooling.
NOTE: Failure to follow the rules listed below can void the warranty on this product.
WARNING
WARNING
WARNING
WARNING
CAUTION
IMPORTANT SAFETY INSTRUCTIONS
GENERAL SAFETY AND OPERATION RULES
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Connect directly to outlet. Do not use product with extension cord. The use of an extension
cord could override the GFCI built into the plug of the power supply cord resulting in the risk of
electrical shock.
8. Always wear safety glasses or goggles when operating or performing maintenance.
9. Always move switch on product to “Off” position before connecting or disconnecting power cord to
electrical outlets.
10.Always turn water supply on before turning pressure washer on unless draining for storage.
Running pump dry causes serious damage.
11.Always hold trigger handle and wand firmly when starting and operating the product.
12.Always follow detergent manufacturer’s label recommendations for proper use of detergents. Always
protect eyes, skin and respiratory system from detergent if used.
13.Always lock the trigger of the trigger handle in the safety position when not in use.
14.Do not use pressure that exceeds the operating pressure of any of the parts (hoses, fittings, etc.) in
the pressurized system. Never use with any other manufacturer’s accessories or components.
15.Do not spray electrical apparatus and wiring or the product itself.
16.Do not operate the pressure washer with the inlet water filter removed. Keep filter clear of debris and
sediment.
17.Discharge residual pressure by depressing the trigger until no more water comes out of the nozzle.
18.Keep clear of nozzle. Never direct high-pressure spray at any person, animal or self.
19.To minimize the amount of water getting into the pressure washer, the product should be placed as
far as possible from the cleaning site during operation.
This pressure washer is provided with a Ground Fault Circuit Interrupter (GFCI) built into the power
supply cord. This device provides additional protection from the risk of electrical shock. Should
replacement of the plug or cord become necessary, use only manufacturer replacement parts that
include GFCI protection. All services must be done by an Authorized Service Technician. Unauthorized
service will void warranty. See Page 4 for testing procedure.
In a double-insulation product, two systems of insulation are provided instead of grounding.
No grounding is provided on a double-insulated product, nor should a means for grounding
be added to the product.
Servicing a double-insulated product requires extreme care and knowledge of the system,
and should be done only by authorized service technician. Replacement parts of a doubleinsulated product must be manufacturer replacement parts. A double-insulated product
is marked with the words “DOUBLE-INSULATION” or “DOUBLE-INSULATED”. The
symbol “ ” may also be marked on the product.
WARNING
IMPORTANT SAFETY INSTRUCTIONS
GROUND FAULT CIRCUIT INTERRUPTER PROTECTION
DOUBLE-INSULATION INSTRUCTION
SAVE THESE INSTRUCTIONS
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The pressure washer is also equipped with a main power On/Off switch located on the
product. It should always be moved to the “Off” position when the pressure washer is not being
used to prevent possible injury or damage.
This product has been designed for use with detergents that are specically approved for
pressure washer use. The use of other cleaning detergents may affect the operation of the
product and void the warranty.
Extension cords are not recommended unless these are plugged into a GFCI protected outlet.
The pressure washer is equipped with a total stop system (TSS) that will sense when the trigger on
the handle is depressed or released. It will open the power circuit to the motor, and cause the pressure
washer motor to stop. The motor will start again when the trigger is depressed.
If possible, do not use extension cords with this product. However, if you must use one, observe all of
the warnings and instructions listed below:
Ground Fault Circuit
Interrupter Protection
This device provides additional protection from the risk of
electrical shock. Plug the Ground Fault Circuit Interrupter
(GFCI) into a power outlet. Indicator should turn red. TEST
BEFORE EACH USE. Press the “TEST” button. Red
indicator should disappear. Press “RESET” button again for
use. Do not use if above test fails.
Use a Sufcient Gauge:
Maximum extension cord length: 50’. Only use 12 or 14 AWG rated extension cords.
• Use only extension cords that are intended for outdoor use. These extension cords are identified by a
marking that reads “Acceptable for use with outdoor appliances; store indoors while not in use.”
• Use only extension cords having an electrical rating not less than the rating of the product.
• Do not use damaged extension cords. Examine extension cord before using and replace if damaged.
Do not abuse extension cord and do not yank on any cord to disconnect.
• Keep cord away from heat and sharp edges.
• Always disconnect the extension cord from the outlet before disconnecting the product from the
extension cord.
• To reduce the risk of electric shock, keep all connections dry and off the ground. Do not touch plug
with wet hands.
WARNING
CAUTION
WARNING
SAFETY FEATURES
TOTAL STOP SYSTEM
EXTENSION CORD
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PARTS LIST AND DIAGRAM
Item No. Quantity Part Name
1 1 Handle
2 1 Gun Holder
3 1 Power Cord Bracket
*4 1 Water Filter Screen
5 1 Adjustable Wand
6 1 Trigger Handle
7 1 High-pressure Hose
8 1 Detergent Tank
9 4 Screws
10 1 Tip Cleaning Needle
* Water filter comes pre-attached on the water inlet, located on the front of the pressure
washer.
On/Off
Switch
3
2
1
10
9
4
5
6
7
8
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Surface Preparation
Before starting any cleaning task, it is important to inspect the area for objects that could create a
hazard. Remove any objects from the work area that could be tripped over, such as toys or outdoor
furniture. Ensure that all doors and windows are closed tightly.
Water Supply (Cold Water Only)
Only draw cold water through the washer. For use with cold water supply only. Water hose must be at
least a 1/2” (13 mm) in diameter. Flow rate of water supply must not fall below 2 GPM (gallons per
minute). Flow rate can be determined by running the water for one minute into an empty 5-gallon
container. Measure the volume of water in the bucket after one minute. The water supply temperature
must not exceed 104°F (40°C).
ASSEMBLY AND OPERATION INSTRUCTIONS
• Never use the pressure washer to draw in water contaminated with solvents (e.g. paint
thinners, gasoline, oil, etc.).
• Dirt in the water inlet will damage the pressure washer. To avoid this risk, we recommend
inspecting and cleaning water inlet regularly.
• Always prevent debris from being drawn into the washer by using a clean water source and an
additional accessory water lter if required.
• To prolong the life of the washer, rest the washer for 5 minutes after every 30 minutes of use.
CAUTION
MACHINE ASSEMBLY
Assemble handle onto pressure washer.
Tighten all screws.
Attach high-pressure hose to the trigger
handle (hand tighten only).
Attach gun holder and power cord bracket.
Attach high-pressure hose to the washer’s
water outlet (hand tighten only).
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ASSEMBLY AND OPERATION INSTRUCTIONS
CAUTION
Attach the garden hose to the water inlet
(hand tighten only).
Make sure the On/Off switch is in the “Off”
position.
To allow air to escape from the hose,
depress the trigger on the trigger handle
until there is a steady stream of water.
Insert adjustable wand to the trigger handle
and twist 1/4 turn to lock in position.
Attach garden hose to water supply and turn
water valve on to the full “On” position.
Completely unwind power cord and plug the
GFCI into an outlet, ensure there are no other
items using the circuit. The GFCI plug light
will turn red if the outlet has power.
Turn switch to “On” position. Note: If no sound
is heard this is normal, follow the Operator’s
Manual for proper operation.
Drain pressure washer after each
use.
For storage: remove water
connection, turn on the washer for
a few seconds and press trigger
handle to purge remaining water in
the pump. Turn off immediately.
ON(I)
OFF(O)
1
2
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ASSEMBLY AND OPERATION INSTRUCTIONS
Working with detergent ensures a quick soaking of the dirt, and allows the high-pressure water to
penetrate and remove the dirt more effectively.
To apply detergents you must be operating at low-pressure. This provides a gentle application of
detergent, with the pressure equivalent to a garden hose. The high-pressure setting is used for cleaning,
you cannot apply detergents when working at high-pressure.
Always test detergent in an inconspicuous area before use.
NO BLEACH
Only use cleaning detergents recommended for pressure washers.
Jet spray adjustment is very strong. Do not adjust while spraying.
CAUTION
CAUTION
WORKING WITH DETERGENTS
OPERATION INSTRUCTIONS
Jet
Fan
Adjustable Spray Nozzle
The adjustable spray nozzle can be adjusted from fan to jet. The spray is adjusted by turning the nozzle.
Insert the male end of the tank wand into
the trigger handle firmly. While pushing in
the tank firmly, turn clockwise until tabs
lock into place to ensure a leak free
connection. Fill tank with approved
pressure washer detergents / soaps only.
Engage trigger handle safety lock.
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ASSEMBLY AND OPERATION INSTRUCTIONS
Never leave a pressure washer unattended when under pressure and plugged in to a power source.
1. Engage trigger handle safety lock.
2. Turn pressure washer to “Off” (O) position.
3. Unplug the power cord from the outlet.
1. Turn the switch to “Off” (O) position.
2. Unplug the power cord from the outlet.
3. Turn off the water supply.
4. Press trigger to release any remaining water pressure.
5. Disconnect the garden hose from the water inlet on the washer.
6. Engage trigger handle safety lock.
Turn on the pressure washer. Pull trigger to operate washer. The liquid detergent will automatically mix
with water and be discharged through the nozzle at low-pressure.
Allow detergent to remain on the surface for a short time before rinsing. Do not allow detergent to dry on
surface.
When you have finished using the detergent injection system, fill detergent tank with clean water.
Siphon water at low-pressure for one minute, so that all detergent is flushed through system. Remove
detergent tank, and rinse it thoroughly.
Damage may occur to painted surfaces if chemical is allowed to dry on the surface. Wash and
rinse a small section at a time. Avoid working on hot surfaces or in direct sunlight.
Never use:
• Bleach, chlorine products and other corrosive chemicals
• Liquids containing solvents (i.e., paint thinners, gasoline, oils)
• Tri-sodium phosphate products
• Ammonia products
• Acid-based products
These chemicals will harm the pressure washer and will damage the surface being cleaned.
CAUTION
CAUTION
Turn off water supply and squeeze trigger to depressurize the washer. Failure to do so could
result in personal injury due to discharge of high-pressure water.
Failure to clean properly will cause the detergent injection system to become clogged and
inoperable.
WARNING
CAUTION
TAKING A BREAK
SHUTTING DOWN AND CLEANING UP
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*NOTE: Pump saver is not supplied with your pressure washer. It can be purchased where you
purchased this pressure washer and at most home center stores.
For more information call: 1-866-902-9690.
WINTERIZING AND LONG-TERM STORAGE
Winterizing your pressure washer will help protect and prolong its life. We strongly recommend you
follow the below steps using Pressure Washer Pump Saver*. This will keep the internal parts lubricated,
protected from rust, and prevents the pump from freezing.
1. Connect Pressure Washer Pump Saver hose onto the water inlet.
2. Depress button on top of Pump Saver container.
3. Continue until fluid exits the pressure hose.
4. Remove the hose from pump inlet (water inlet).
If you cannot do the optimum winterizing procedure, you can still protect your pressure washer from
winter-damage by doing the following:
1. Disconnect all water connections.
2. Turn on the washer for a few seconds, until the remaining water in the pump exits. Turn off
immediately.
3. Do not allow high-pressure hose to become kinked.
4. Store the washer and accessories in a room that does not reach freezing temperatures. Do not store
near furnace or other sources of heat as it may dry out the pump seals.
OPTIMUM WINTERIZING PROCEDURE
QUICK WINTERIZING PROCEDURE
Drain trigger handle assembly of any remaining water. Aim trigger handle downwards and squeeze
trigger.
CAUTION
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CLEANING AND MAINTENANCE
Connections
Connections on pressure washer hoses,
trigger handle and adjustable wand should
be cleaned regularly and lubricated with
non-water soluble grease.
Tip of the Wand Only
A clogged tip can cause pressure build-up,
clean immediately. You can clean the wand
tip by carefully inserting the tip cleaning
needle, or a thin, sharp instrument (i.e.
sewing needle) into the tip to remove debris.
Water Filter Screen
The pressure washer is equipped with a
water filter screen to protect the pump. If the
screen is not kept clean, the flow of water to
the pressure washer will be restricted and
the pump may be damaged.
1. To clean water filter screen, push the
connector inside and remove the filter
screen from the water inlet.
2. Rinse screen until it is free of debris and
blockage.
3. Replace screen immediately to
prevent any foreign matter from entering
the pump.
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TROUBLESHOOTING
Motor does not run when on,
fully connected and
trigger depressed.
Washer does not reach
high-pressure.
On/Off switch is in the “Off”
(O) position.
Diameter of garden hose is
too small.
GFCI is not plugged in.
Water supply is restricted.
Extension cord is too long.
Extension cord is not proper
gauge. Extension cord is
damaged.
Not enough water supply.
Electrical outlet does not
supply adequate power.
Water filter screen is clogged.
Tripped pressure washer
thermal protector.
Power nozzle is in
low-pressure position.
Turn switch to the “On” (-)
position.
Replace with a 1” (25 mm) or
5/8” (16 mm) garden hose.
Plug in GFCI.
Check garden hose for kinks,
leaks and blockage.
Replace extension cord with
either a 25’ (7.6 m) 14/3
gauge cord or a 50’ (15 m)
14/3 gauge cord.
Open water source fully.
Try a different outlet.
Remove filter and rinse in
warm water.
Allow to cool, and restart
washer.
Replace with desired
high-pressure tip.
Disconnect the pressure washer from the power source before making any repairs.
Symptom Cause Solution
Pump is sucking air. Check that hoses and
fittings are airtight. Turn
off washer, and purge pump
by squeezing trigger handle
until a steady flow of water
emerges through the nozzle.
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Symptom Cause Solution
TROUBLESHOOTING
Output pressure varies high
and low.
Detergent is not working.
Detergent tank not properly
connected.
Water filter screen is clogged.
Detergent is too thick.
Discharge nozzle is
obstructed.
Not enough inlet water supply.
Calcified trigger handle, hose
or power nozzle.
Pump is sucking air.
Detergent container is empty.
Check connections.
Remove filter and rinse with
warm water.
Dilute detergent.
Blow out or remove debris
with a tip cleaning needle.
Turn water on fully. Check
garden hose for kinks, leaks
or blockage.
Run distilled vinegar through
detergent tank.
Check that hoses and
fittings are airtight. Turn
off washer, and purge pump
by squeezing trigger handle
until a steady flow of water
emerges through the nozzle.
Add more detergent.
Discharge nozzle is
obstructed.
Blow out or remove debris
with a tip cleaning needle.
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Oil is dripping.
Motor buzzes but fails to run.
Water seals are damaged or
worn.
System has residual
pressure.
Voltage loss due to extension
cord.
Oil seals are damaged or
worn.
Supply voltage is below
minimum required.
Call the Toll-Free Hotline:
1-866-902-9690
Turn washer off, squeeze
trigger on trigger handle to
release pressure, then turn
washer on.
Unplug any extension cords
attached and plug the washer
directly into the outlet.
Call the Toll-Free Hotline:
1-866-902-9690
Verify that only the pressure
washer is running on this
circuit.
Garden hose connection
leaks.
Spray wand, extension, or
nozzle leaks.
Pump is noisy.
Water leaks from pump (up
to 10 drops per minute is
permissible).
Pump is sucking air.
Loose fittings.
Loose fittings.
Missing/worn rubber washer.
Broken o-ring or plastic insert.
Water filter is clogged.
Check that hoses and
fittings are airtight. Turn off
washer and purge pump by
squeezing trigger handle
until a steady flow of water
emerges through the nozzle.
Check that all fittings are tight.
Tighten fittings.
Insert new washer.
Call the Toll-Free Hotline:
1-866-902-9690
Remove water filter and rinse
in warm water.
Symptom Cause Solution
TROUBLESHOOTING
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Motor buzzes but fails to run.
No water. Water supply is off.
Pressure washer not used for
long periods.
Residual friction among
components. Washer might
hum.
Kink in the garden hose.
Turn on water supply.
Call the Toll-Free Hotline:
1-866-902-9690
Disconnect water supply and
power on for 2 to 3 seconds,
repeat 4-5 times or until the
motor starts.
Remove kink in garden hose.
Symptom Cause Solution
TROUBLESHOOTING
IF YOU HAVE ANY QUESTIONS, CALL OUR TOLL-FREE HOTLINE:
1-866-902-9690
www.MightyCleanUSA.com
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TECHNICAL DATA
Power Source Requirement: 120 V / 60 Hz
Rated Current: 10 AMP
Max. Pressure: 1500 PSI
Max. Flow Rate: 1.35 GPM
Electrical Cord: 35’
High-pressure Hose: 20’
Inlet Water: Cold Tap Water, Max. 104oF / 40oC
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WARRANTY
Product Warranty
Please keep your original purchase receipt in a safe place as proof of purchase. Warranty coverage for
this product must be verified by the original purchase receipt. The warranty period begins on the day
that the product was purchased from an authorized retailer of Mighty Clean products. Warranty coverage
only applies to the original purchaser and is not transferrable. Warranty coverage is only provided on
products purchased from authorized Mighty Clean retailers.
(2) Two-Year Warranty – Pump and Motor
The MC1500 has a 2-Year Limited Warranty from the date of purchase against manufacturer defects for
residential use only. Commercial use voids the warranty. This warranty does not cover accidental
damage, unreasonable use, normal wear and tear, neglect or non-compliance with the Operating, Safety
and Maintenance Instructions. All service, outside of normal maintenance as described in this manual,
must be done by an authorized service technician. Any unauthorized service or changes to the original
configuration of this product will void the warranty. All parts and accessories used on and with this
product must be manufacturer and authorized by SUMEC North America.
(90) Ninety-Day Warranty – Accessories
The accessories included with the MC1500; including hose, trigger handle and wand, and other similar
parts are warranted against manufacturer defects for residential use only for a period of 90 days from
date of purchase.
Warranty does not cover loss of use or other consequential damages arising from any of the above, nor
does it cover repairs made or attempted by unauthorized persons. This warranty is void if the product
is used for commercial, rental or industrial purposes. Certain parts, attachments and accessories are
subject to normal wear and tear and are excluded from the warranty.
Service and Warranty Claims Process
Contact the Mighty Clean Support Center toll-free at 1-866-902-9690 Monday-Friday between 8:30 AM
and 5:00 PM Eastern Time for service and warranty support.
Might Clean USA Service Support agents can help you troubleshoot problems over the phone to get
you back up and running as quickly as possible. In the situation where service or warranty inspection is
needed, please follow these steps:
1. Contact Mighty Clean USA at 1-866-902-9690 Monday-Friday between 8:30 AM and 5:00 PM
Eastern Time.
2. Send in proof-of-purchase and serial number (if applicable) to confirm warranty coverage.
3. If service or a warranty evaluation is requested, Mighty Clean USA will provide an RGA number that
should be used in all communications with Mighty Clean USA and is required to be indicated on the
product itself and on the outside of the box.
4. All shipments to Mighty Clean USA must have an RGA number. Any shipment received that does not
have an RGA number clearly marked on the outside of the box will be refused.
5. All shipments must be sent pre-paid, Mighty Clean USA does not pay for any shipping costs for
service or warranty evaluation. Mighty Clean USA is not responsible for any packages that are lost
by carrier. We recommend that shipments are made by a carrier that provides tracking and delivery
confirmation.
For more information or to ask questions, please call toll-free 1-866-902-9690 Monday-Friday between
8:30 AM and 5:00 PM Eastern Time.
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For the full line of Mighty Clean tools, replacement parts or
accessories visit:
www.ForceToolsUSA.com
If you have any questions, call our toll-free hotline
1-866-902-9690
www.MightyCleanUSA.com
Rev 201502 MC1500
Manufactured by SUMEC
3939 Royal Dr. NW Suite 234
Kennesaw, GA 30144
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