OEM Tools 23976 Service manual

UNPACKING
After unpacking the unit, inspect carefully for any
damage that may have occurred during transit. Check
for loose, missing, or damaged parts. If any damage is
observed, a shipping damage claim must be filed with
the carrier. DO NOT use the OEMTOOLS™ 3 Speed
Evaporative Cooler if broken, bent, cracked or damaged
parts (including labels) are noted. Any Evaporative
Cooler that appears damaged in any way, operates
abnormally or is missing parts should be removed from
service immediately. If you suspect that the Evaporative
Cooler was subjected to shock load (a load that was
dropped suddenly, unexpectedly, etc.), immediately
discontinue use until it has been checked by a factory
authorized service center.
Please read and save these instructions. Read through this owner’s manual carefully before using product. Protect yourself and
others by observing all safety information, warnings, and cautions. Failure to comply with instructions could result in personal
injury and/or damage to product or property. Please retain instructions for future reference.
The following safety information is provided as a guideline to help you operate your Evaporative Cooler under the
safest possible conditions. Any tool or piece of equipment can be potentially dangerous to use when safety or safe
handling instructions are not known or not followed. The following safety instructions are to provide the user with the
information necessary for safe use and operation. Please read and retain these instructions for the continued safe use
of your Evaporative Cooler. Failure to follow instructions listed below may result in serious injury. In addition, make sure
that anyone who uses the equipment understands and follows these safety instructions as well.
Operating Instructions and Parts Manual 23976/23977
FOR CUSTOMER SERVICE
Technical Question?
CALL 1-866-458-2472
[email protected]
Thank you very much for choosing an OEMTOOLS™Product!
For future reference, please register your new tool at www.oem-tools.com and complete the owner’s record below:
Model: _______________ Purchase Date: ___________
Save the receipt, warranty and these instructions. It is important that you read the entire manual to become familiar
with this product before you begin using it. This product is designed for certain applications only. OEMTOOLS™
cannot be responsible for issues arising from modification. We strongly recommend that this product is not modified
and/or used for any application other than that for which it was designed. If you have any questions relative to a
particular application, DO NOT use the product until you have first contacted customer service to determine if it can or
should be performed on the product.
WARNING:This product can expose you to chemicals, including DEHP and lead, which are known to the State of
California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Explanation of Safety Signal Words
WARNING:Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION:Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
CAUTION:Used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may
result in property damage.
NOTES:Provide clarity and helpful information.
3 SPEED EVAPORATIVE COOLER
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12/18
2018 OEMTOOLS™
WARNING
3,100 CFM 3 Speed
Evaporative Cooler
23976
5,300 CFM 3 Speed
Evaporative Cooler
23977

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Operating Instructions and Parts Manual 23976/23977
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2018 OEMTOOLS™
3 SPEED EVAPORATIVE COOLER
IMPORTANT INSTRUCTIONS
AND SAFETY RULES
1. Know your evaporative cooler. Read this manual
carefully. Learn the evaporative cooler’s applications and
limitations, as well as potential hazards specific to it.
2. Keep work area clean and well lit. Cluttered or dark
work areas invite accidents.
3. Keep children away. All children should be kept
away from the work area. Never let a child handle an
evaporative cooler without strict adult supervision.
4. DO NOT operate this evaporative cooler if under the
influence of alcohol or drugs. Read warning labels on
prescriptions to determine if your judgment or reflexes
are impaired while taking drugs. If there is any doubt,
DO NOT attempt to operate.
5. Use safety equipment. Eye protection should be worn
at all times when operating this evaporative cooler. Use
ANSI approved safety glasses. Everyday eyeglasses
are NOT safety glasses. Dust mask, non-skid safety
shoes, hard hat or hearing protection should be used in
appropriate conditions.
6. Wear proper apparel. Loose clothing, gloves, neck-ties,
rings, bracelets or other jewelry may present a potential
hazard when operating this evaporative cooler. Keep all
apparel clear of the evaporative cooler.
7. DO NOT overreach. Keep proper footing and balance
at all times when operating this evaporative cooler.
8. Check for damage. Check your evaporative cooler
regularly. If part of the evaporative cooler is damaged,
it should be carefully inspected to make sure that it can
perform its intended function correctly. If in doubt, the
part should be repaired. Refer all servicing to a qualified
technician. Consult your dealer for advice.
9. Keep away from flammables. DO NOT attempt to
operate this evaporative cooler near flammable
materials or combustibles. Failure to comply may
cause serious injury or death.
10. Store idle evaporative cooler out of the reach of
children and untrained persons. Evaporative coolers
may be dangerous in the hands of untrained users.
11. Maintain your evaporative cooler with care.
12. DO NOT use a damaged evaporative cooler. Tag damaged
evaporative coolers “DO NOT USE” until repaired.
13. Use only accessories that are recommended by the
manufacturer for your model. Accessories that may
be suitable for one tool may become hazardous when
used on another evaporative cooler.
14. Evaporative cooler service must be performed only
by qualified repair personnel. Service or maintenance
performed by unqualified personnel could result in a
risk of injury.
15. When servicing an evaporative cooler, use only
identical replacement parts. Use of unauthorized parts
or failure to follow maintenance instructions may create
a risk of injury.
16. Maintain a safe working environment. Keep the work
area well lit. Make sure there is adequate surrounding
workspace. Keep the work area free of obstructions,
grease, oil, trash and other debris.
17. Maintain labels and nameplates on this product. These
carry important information. If unreadable or missing,
contact OEMTOOLS™ for a replacement.
IMPORTANT SAFETY INSTRUCTIONS
The warnings, precautions, and instructions discussed in this
manual cannot cover all possible conditions and situations
that may occur. The operator must understand that common
sense and caution are factors which cannot be built into this
product, but must be supplied by the operator.
DISPOSAL
At the end of the useful life of the OEMTOOLS™ 3 Speed
Evaporative Cooler, dispose of the components according
to all state, federal and local regulations.
PRODUCT DESCRIPTION
The OEMTOOLS™ 3 Speed Evaporative Cooler works on
the principle of heat absorption by moisture evaporation.
Simply put, heat is removed from the air as water
evaporates. You feel this principle in action when you
step out of a swimming pool or shower and feel cool
as water evaporates from the surface of your skin. Your
evaporative cooler works on the same principle. The fan
pulls hot outside air through the wet cooling pads, where
the air is cooled by evaporation and then discharged from
the cooler.
PRODUCT SPECIFICATIONS - 23976
Size 37" H x 25" W x 17" D
Dry Weight 40 Lbs.
CFM 3,100
Cooling Area Up to 950 sq. ft.
Motor Power 1/5 HP, 3 Speed
Water Capacity 10.3 Gallons
Input Voltage 115V AC, 1-Phase
Run Time Up to 4 hours
PRODUCT SPECIFICATIONS - 23977
Size 45" H x 28" W x 17" D
Dry Weight 57 Lbs.
CFM 5,300
Cooling Area Up to 1,600 sq. ft.
Motor Power 1/3 HP, 3 Speed
Water Capacity 14.6 Gallons
Input Voltage 115V AC, 1-Phase
Run Time Up to 4 hours

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Operating Instructions and Parts Manual 23976/23977
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3 SPEED EVAPORATIVE COOLER
SAFETY INFORMATION
READ AND SAVE THESE INSTRUCTIONS
WARNING:
1. Unplug the evaporative cooler before moving it
or performing maintenance. DO NOT touch the
evaporative cooler when your hands are wet.
2. Those who are not qualified electricians should not
disassemble, repair or rebuild the evaporative cooler.
3. Unplug the evaporative cooler when it is not in use.
4. DO NOT unplug the evaporative cooler by holding the
cable cord. Unplug by holding the plug.
5. DO NOT use the evaporative cooler when there is
damage to the cable cord or plug.
6. Avoid the use of extension cords when possible.
Ensure that they are UL listed if they must be used. DO
NOT use a single extension cord to operate more than
one evaporative cooler. DO NOT plug the evaporative
cooler into any other cord-connected device (power
strip, surge protector, multiple outlet adapters, etc.).
7. DO NOT use the evaporative cooler close to any fire or
heat source.
8. DO NOT insert your hand or other objects into the rear
housing when the blade is moving.
9. To reduce the risk of fire or electric shock, DO NOT
use this evaporative cooler with any solid-state speed
control device.
10. DO NOT operate any evaporative cooler with a
damaged cord or plug. Discard the evaporative
cooler or return to an authorized service facility for
examination and/or repair.
11. DO NOT run cord under carpeting. DO NOT cover cord
with throw rugs, runners or similar coverings. DO NOT
route cord under furniture or appliances. Arrange cord
away from traffic area and where it will not be tripped
over.
12. DO NOT use if electrical cord is frayed or bent.
13. DO NOT immerse the evaporative cooler in water.
14. Confirm the rear panel is attached before operating.
15. This evaporative cooler is not intended for use by
people (including children) with reduced physical,
sensory or mental capabilities or lack of experience and
knowledge unless they have been given supervision or
instructions concerning use of the evaporative cooler
by a person responsible for their safety. Supervise
children to ensure they do not play with the evaporative
cooler.
16. Always place the evaporative cooler on a stable, flat,
level surface when operating, to avoid the chance of
the evaporative cooler overturning.
17. To reduce the risk of fire or electrical shock, DO NOT
expose electrical connections to water.
18. DO NOT touch electrically live components.
19. Adequate ventilation is required.
ASSEMBLY INSTRUCTIONS
Evaporative coolers are pre-assembled and ready to
operate. Simply remove the packaging and then carefully
remove the unit from the box. Install the casters. Casters
are located in the compartment on the bottom of the
cooler. Lock the 2 locking wheels before filling and turning
on fan to keep the cooler from moving from the air velocity.
Lay the cooler down. Unscrew the two screws,
remove the bottom panel.
Take out: Casters (4)
Screws (16)
Garden Hose adapter (1)
Install 4 Casters.
NOTE:The media pad will have a slight odor when it is
new. This is normal. It will dissipate after a period of time
depending on the use time. Draining the tank often during
the break-in period will help speed this up.
OPERATING INSTRUCTIONS
1. Your cooler must be positioned in front of an open
window or door if it is to operate effectively.
2. Always ensure that there is another open window or
door through which the air can exhaust from the room.
3. Ensure the filter is kept clean throughout the summer
season.
4. At the end of each day, run your cooler on FAN ONLY
for 30 minutes to dry out the filter.

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Operating Instructions and Parts Manual 23976/23977
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3 SPEED EVAPORATIVE COOLER
5. Prior to putting your cooler away for winter, always:
a. Drain the tank and wipe it clean.
b. Clean the filter.
c. Re-assemble and run on FAN ONLY for
30 minutes to dry out the filter.
6. Having completed assembly of your cooler, position the
unit with its back to an open window or door. This will allow
fresh air to be drawn through the cooler and exhausted
from the room. Constant air change is essential and part of
the fresh air benefit from evaporative air cooling.
7. Remember: your cooler has been designed to operate
even if it runs out of water. No damage will be caused
to the pump if cooler runs out of water.
FILLING COOLER OR CONNECTING TO
WATER SUPPLY
Move the cooler to an area where it can be filled.
MANUAL FILL
The cooler can be filled via the front fill door by hose or
bucket. Using the water fill window to monitor water level,
simply depress the fill door and the spring lock will release
and open it. To close, simply push it closed and locked.
AUTO FILL CONNECTIONS
Connect to a water supply using a garden hose or coil hose
(supplied by customer), or a direct water line. (Parts for
direct connection can be obtained at any hardware store.)
Simply attach hose adapter (supplied with cooler) to the
float valve nipple protruding from cooler. Verify water tight
connections by visually examining the hose connection.
CAUTION:
Water inlet pressure should be limited to a maximum 50 PSI .
If valve is overcome, install a pressure reducer (25 PSI) on
nipple first. (It can be obtained at hardware stores in the
Irrigation section.) Hose bib needs only be cracked open
slightly to supply water to float valve, and the cooler only
needs to be about half filled when in auto fill configuration.
The float is already set to that level.
USING THE ROTARY MECHANICAL CONTROL
SWITCHES (CLOCKWISE FROM OFF):
Rotary Switch #1: Controls pump function
Rotary Switch #2: Controls fan functions
• Off
• L: Low Fan
• M: Medium Fan
• H: High Fan
Rotary Switch #3: Controls swing function
ON/OFF SWITCHES
Each function is controlled independently. To dry the
pads or use the cooler as a fan only, simply turn the fan
switch on to desired speed while leaving the pump power
switch in the “OFF” position.
ADDITIONAL FEATURES
• GFCI plug end
MAINTENANCE
WARNING: DO NOT remove the back panel with the
cooler running.
NOTE:For best operation and long useful life, the
following maintenance and cleaning procedures should
be followed.
CLEANING COOLER AND PADS
At regular intervals, the cooler should be shut down and
disconnected from power supply. The water tank should
be drained of dirty water and sprayed out with fresh
water and refilled. The more you do this, the better it will
work and less calcium will develop on pads and/or other
surfaces. You may spray through the cooling pads to
wash them out and allow water to deposit in the tank to
be drained away. The removable panel and media pad
can be sprayed out on the ground to clean pad. Use light
pressure when spraying pads. NEVER spray pads with
water while cooler is operating and fan is running. This
can cause damage to motor and will void the warranty.

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3 SPEED EVAPORATIVE COOLER
REMOVAL OF THE BACK PANEL
Disconnect power supply before this procedure.
1. Unscrew the screws at top of back panel (3).
2. Lift panel up and pull out at the bottom.
3. Slide the panel out of the cabinet.
4. You will now have access to the pump, float valve and
the water distributor spreaders.
Unscrew the screws in the
back panel first, then pull
the back panel up.
Pull out the bottom of
the back panel then take
it down.
DRAINING THE COOLER TANK
Unscrew drain cap from drain assembly and drain away
water. You may tip the unit carefully to the drain side to
help drain all the water out.
REMOVAL AND REPLACEMENT OF
COOLING MEDIA
The cooling pads are made from a special resin
impregnated craft paper specially designed for
evaporative cooling. They will last many years if
maintained properly and water quality is maintained. It is
not necessary to remove the pads to clean them.
Inspect the pads for deposits of calcium on the air
entering side. If the flute cells are clogged or the pad is
very heavy, it may be time to change the media. New
OEMTOOLS™ media can be purchased where you
bought the cooler. Follow these steps for replacing the
pads.
1. With access panel removed, simply pull off the pad
retainer disc from the pad pin.
2. With disc removed, remove the pins from the pads and
carefully remove pads from the fixed side mounting
frame. Then do the same for the back panel or panels.
3. Pads are made with a 45/45 flute and can be installed
either side to the frame. Just make sure the distribution
pad that is fixed to the top of the new media pad is at
the top. This allows water to get onto the top of the
pad evenly. The installation of the pads is opposite of
the removal: Install the pad, insert pins and install the
retaining disc.
4. Reinstall the back panel and you are ready to use the
cooler again.
PUMP MAINTENANCE AND REPLACEMENT
NOTE:Disconnect power supply before this procedure.
The submersible pump is mounted inside the tank to the
bottom with a retention bracket. While you are cleaning
the cooler, the pump may be removed and the strainer
cap on the bottom of pump can be cleaned of debris. If
pump has failed and needs replacing, follow these steps:
1. Remove retaining screws.
2. Remove the switch control panel from the top of cooler
by inserting a small screwdriver into the tap slots and
pop loose.
3. The pump is connected to the control via the white
plastic clip. Disconnect the pump clip and feed the
plastic clip through the control box into the cooler.
4. There are cable ties holding the power cable to the
water hose, which is routed up the front corner of the
cooler. Remove the cable ties. Remove the pump from
cooler when cable is free.
5. Re-install the new pump in reverse. Be sure to
reconnect the cable in the twist ties and secure the
cable in a manner of which it stays clear of fan blade
when cooler is running. Re-attach the pump clip in the
control box. Be sure not to pull any other wires loose
from control switches when you have panel loose.
6. Re-install the control panel into the cabinet making
sure it is seated.
FLOAT VALVE REPLACEMENT OR ADJUSTMENT
NOTE:Disconnect power supply before this procedure.
The float valve is mounted to the left side of the cooler
if you are facing the front grill. It is held in place by the
retaining nut that is visible from the outside. The rubber
washer is between the nut and cabinet. The rear panel will
have to be removed to adjust the float (if the water level is
too high or too low) or remove and replace a float that has
failed to shut off water supply.
NOTE:Be sure that the PSI of the supply water is within
the 50 PSI specification before determining that the float
has failed.
1. The float valve can be purchased where you purchased
your cooler.
2. Remove any hose adapters attached to the float valve
nipple.
3. Remove the rear panel assembly as instructed in
Section 5.
4. Remove the float valve retaining nut and rubber washer.
Then remove float valve from cabinet.
5. Re-install the float valve in reverse. Set the valve
adjustment to around 60 degrees for best results.

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Operating Instructions and Parts Manual 23976/23977
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3 SPEED EVAPORATIVE COOLER
PARTS DIAGRAM
No. Part Name 23976 Part # 23977 Part #
1 Pump 6036050 6060050
2 Motor 6037051 6061051
3 Rigid Media Set CP370 CP610
4 Control Board 6037069 6037069
5 Casters 6036061 6060061
6 Casters w/lock 6036062 6060062
7 Fan Blade 6037052 6061052
8 Float Valve 6018058 6018058
9 Hose Adapter 6018088 6018088
10 Water Level Float 6037059 6037059
11 Oscillator Motor 6037057 6037057
12 Water Fill Door 6037076 6037076
13 Drain Plug 6017081 6017081
PARTS LIST

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3 SPEED EVAPORATIVE COOLER
Problem Cause/Remedy
1. Cooler fails to work at all
1.1 Check that the unit is plugged in properly.
1.2 Check the POWER switch, push it to “ON”.
1.3 The TIMER switch is “OFF”, turn it to “ON”.
1.4 Make sure cooler is not plugged into a tripped GFIC outlet. If so, reset GFCI or
move to non GFCI outlet.
2. Cooler does not pump
2.1 Pump is not activated. Push the PUMP switch to “ON”.
2.2 Water level is low. Fill with water and make sure pump is activated.
2.3 Be sure the pump and pump hose are clear of debris.
2.4 Pump may be defective. Replace pump.
3a. Fan does not operate
3.1 Check that unit is plugged in properly.
3.2 Check the POWER switch, push it to “ON”.
3.3 If connected to a GFCI outlet, check to see if it is tripped.
3.4 Troubleshoot rotary switch.
3b. Fan runs slow at start up 3b.1 Replace motor capacitor.
4. Louver does not operate
4.1 Louver does not move. Move swing switch position to “ON”.
4.2 Check Oscillator motor for proper placement and operation.
5. Water leakage
5.1 Check the cap of the drain assembly, make sure it tightened.
5.2 Inspect tank for cracks or breakage.
5.3 Make sure cooler is level.
5.4 Check media pads for buildup allowing water out on outside of pad frame --
change media if needed.
5.5 If water is coming out of the fan, check for leaks in water distribution hoses and/or
leaks at hose connections to spreaders.
5.6 Be sure there is at least 4 inches of space for rear panel free from wall or other
obstruction. This could make the side panels release water to airstream due to
increased air velocity through the sides.
5.7 Spreaders may have scale buildup allowing water to pool and spill over into
airstream --- clean spreaders.
6. Float Valve
6.1 If water levels are too high/low, adjust the wing nut on the valve.
6.2 If there is a leak, check for cracks. Purchase new valve at www.oem-tools.com

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Operating Instructions and Parts Manual 23976/23977
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3 SPEED EVAPORATIVE COOLER
CONTACT US
3580 E. Raines Road, Suite 3, Memphis, TN 38118
Tel: [phone]
www.oem-tools.com
OEMTOOLS™ EVAPORATIVE COOLERS LIMITED ONE YEAR WARRANTY
THE WARRANTIES OF MERCHANTABILITY AND FITNESS. This warranty gives you specific legal rights, and you may
also have other rights, which vary from state to state.
For one year from the original purchase date of this product, OEMTOOLS™ will warranty the product to be free from
defects in material or workmanship. If component and or components are found to be defective within this period,
OEMTOOLS will replace the defective component and or components free of charge. Copies of proof of purchase and
cooler manufacturing label will be needed for the warranty claim.
If you find any defect in material or workmanship, through normal usage, please call OEMTOOLS at 866-458-2472.
OEMTOOLS™ does not provide warranty for products labeled other than OEM® or OEMTOOLS™. OEMTOOLS™ will
not provide any warranty for products subjected to abnormal use. Abnormal use includes (but is not limited to) abuse,
accident, alteration, neglect and unauthorized or unreasonable use or repairs. This warranty does not cover bits,
blades, files, batteries or calibration. We recommend that you maintain your tools and sharpen or replace blades, bits,
files and batteries as necessary. OEMTOOLS™ reserves the right to makes any changes in construction or design at
any time without any obligation in incorporating such changes to tools or equipment previously sold.
OEMTOOLS™ makes every effort to ensure that its products meet high quality and durability standards, and warrants
to the original purchaser that this product is free from defects in materials and workmanship for the period of one
year from the date of purchase. This warranty does not apply to damage due directly or indirectly to misuse, abuse,
negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper installation, normal wear
and tear or to lack of maintenance.
OEMTOOLS is not responsible for damaged shipments or shortages resulting from carrier mishandling. Notify your
carrier’s office immediately to file a claim. Keep damaged goods and containers for inspection until advised by the
carrier as to disposal.
We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent, special or
consequential damages arising from the use of our product. Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation of exclusion may not apply to you. THIS WARRANTY
IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF
MERCHANTABILITY AND FITNESS. This warranty gives you specific legal rights, and you may have other rights, which
vary from state to state.