KRATOS 69K-771 Owner's manual

8/24/2018
SERVICE, INSTALLATION AND OPERATION MANUAL
For AUTHORIZED PARTS or TECHNICAL SERVICE, please contact:
1-887-368-2797
7750 Georgetown Road, Indianapolis, IN 46268 USA
Phone: [phone]
69K-769 w/1 DOOR
69K-770 w/2 DOORS
69K-771 w/2 DOORS
SANDWICH/SALAD PREPARATION TABLES
PLEASE READ CAREFULLY

Page 2of 18
TABLE of CONTENTS
SERIAL NUMBER INFORMATION.............................................................................................................................................3
APPLIANCE SAFETY...................................................................................................................................................................4
IMPORTANT SAFEGUARDS .......................................................................................................................................................4
CASTER INSTALLATION ......................................................................................................................................................6
DIMENSIONS ................................................................................................................................................................................7
TECHNICAL INFORMATION......................................................................................................................................................7
RECEIVING AND INSPECTING THE EQUIPMENT.................................................................................................................8
INTRODUCTION .........................................................................................................................................................................8
COMPONENT INFORMATION .................................................................................................................................................9
APPLIANCE INSTALLATION....................................................................................................................................................10
Remove Packaging Materials....................................................................................................................................................10
Location Requirements..............................................................................................................................................................10
Inside cabinet:............................................................................................................................................................................10
Outside cabinet:.........................................................................................................................................................................10
Installation Clearance................................................................................................................................................................11
Stabilizing..................................................................................................................................................................................11
Electrical Connection ................................................................................................................................................................11
OPERATION.................................................................................................................................................................................12
Refrigerated cycle......................................................................................................................................................................12
Power Switch:............................................................................................................................................................................12
SOLID-STATE THERMOSTAT DESCRIPTIONS ......................................................................................................................12
1. FRONT PANEL COMMANDS ............................................................................................................................................12
2. MAIN FUNCTIONS.............................................................................................................................................................13
3. ALARM SIGNALLING........................................................................................................................................................13
CLEANING AND MAINTENANCE...........................................................................................................................................14
Exterior and Interior Cleaning of Appliances............................................................................................................................14
Cleaning the Condenser Coil.....................................................................................................................................................14
Stainless Steel Care and Cleaning.............................................................................................................................................15
Gasket Maintenance ..................................................................................................................................................................15
Doors/Hinges.............................................................................................................................................................................15
Drain Maintenance ....................................................................................................................................................................15
TROUBLESHOOTING GUIDE ................................................................................................................................................16
WIRING DIAGRAMS ................................................................................................................................................................17

Page 3of 18
READ THIS MANUAL IN ITS ENTIRETY
TO HELP FAMILIARIZE YOURSELF WITH YOUR NEW EQUIPMENT BEFORE PROCEEDING.
We have provided many important safety messages in this manual.
Always read and obey all safety messages.
Understanding of safety messages will assist in alerting you to potential hazards, as well as tell you
how to reduce the chance of injury. Follow the instructions as outlined in this manual.
Fill out and return the enclosed warranty postcard.
Keep the dated proof of purchase invoice which establishes the appliance's warranty period.
SERIAL #:______________________________________________________________________________________________
MODEL #:________________________________________ DATE OF PURCHASE:_______________________________
SERIAL NUMBER INFORMATION
lThe serial number of all self-contained refrigerators is located inside the unit on the left hand side near the top on the
wall.
lAlways have the serial number of your unit available when calling for parts or service.
lThis manual covers standard units only. If you have a custom unit, consult customer service department at the number
listed on cover page.
Due to periodic changes in designs, methods, procedures, policies and regulations, the contents of this manual
are subject to change without notice. While we exercise good faith efforts to provide information that is accurate,
we are not responsible for errors or omissions in information provided or conclusions reached as a result of
using this reference manual. By using the information provided, the user assumes all risks in connection with
such use.

Page 4of 18
APPLIANCE SAFETY
Your safety and the safety of others are very important.
Always read and obey all safety messages in this manual.
Thisisthe Safety AlertSymbol. This symbolalertsyoutopotentialhazardsthatcaninjure or kill you
and others. All safety messages will follow the Safety Alert Symbol and either thewords
“DANGER”,
“WARNING”OR“CAUTION”.
DANGER
DANGER means that failure to heed this safety statement may result in Death or Severe Personnel Injury .
WARNING
WARNING means that failure to heed this safety statement may result in extensive product damage, serious
personal injury, or death.
CAUTION
CAUTION means that failure to heed this safety statement may result in minor or moderate personal injury, or
property or equipment damage.
Allsafetymessageswillalertyoutowhatthepotentialhazardis,tellyouhowtoreducethechance of injury,andlet you
knowwhat can happenif the instructionsarenot followed.
NOTE: VERY IMPORTANT SAFETY INFORMATION
CAUTION CAUTION FLAMMABLE-Risk of Fire-R290 Refrigerant
lRisk Of Fire Or Explosion. Flammable Refrigerant Used. To Be Repaired Only By Trained Service Personnel.
lDo Not Puncture Refrigerant Tubing.
lRisk Of Fire Or Explosion. Flammable Refrigerant Used. Consult Repair Manual/Owner’s Guide Before Attempting To
Service This Product. All Safety Precautions Must be Followed.
lRisk Of Fire Or Explosion. Dispose Of Property In Accordance With Federal Or Local Regulations. Flammable
Refrigerant Used
lRisk Of Fire Or Explosion Due To Puncture Of Refrigerant Tubing; Follow Handling Instructions Carefully. Flammable
Refrigerant Used
NOTE: IMPORTANT SAFETY INSTRUCTIONS
WARNING Toreducetheriskoffire,electricshockorinjury,when usingyour appliance ,followthese
basic precautions:
l Plugintoa tested grounded3-prongoutlet.
l Donotremovegroundingprong.
l Do not usean adapter.
l Do not usean extensioncord.
l Disconnectpowerbeforecleaning.
l Disconnectpowerbeforeservicing.
l Use 2 or more people to safely move and install appliance.
SAVE THESE INSTRUCTIONS

Page 5of 18
IMPORTANT SAFEGUARDS
Beforethe appliance isused,itmustbeproperlypositionedandinstalledasdescribed
inthismanual,soread themanualcarefully. Westronglyrecommendthatyou have a
professional install your new machine. The warranty may be affected or voided by
an incorrect installation. To reduce the risk of fire, electrical shock or injury when
usingthe
appliance ,followbasic precautions, includingthe following:
DANGER
• It is recommended that a separate circuit, serving only your appliance , be provided. Use receptaclesthat cannot
beturned off bya switchorpull chain.
•Please ensure that the required voltage is being supplied at all times.
•The unit should be plugged into a grounded and properly-sized electrical outlet with appropriate over-current
protection.
•Ensure unit is not resting on, pinching or against the electrical cord.
•
Donot connector disconnect the electricplugwhenyour handsarewet.
•
Never unplug the appliance by pulling on the power cord. Always grip the plug firmly and pull straight out from the
outlet.
•
Never clean appliance parts with flammable fluids. Do not store or use gasoline or other flammable vaporsand
liquids inthe vicinity ofthisoranyotherappliance.Thefumescancreate afirehazardor explosion.
•
Beforeproceedingwithcleaningandmaintenanceoperations,makesurethepowerlineofthe unitis disconnected.
•
Unplug the appliance or disconnect power before cleaning or servicing. Failure to do so can resultinelectrical
shockordeath.
•If the unit is not in use for a long period of time, best to unplug the unit from the outlet.
•After unplugging the unit, wait at least 8 minutes before plugging it back in. Failure to do so could cause damage to the
compressor.
•If the power cuts off, wait at least 8 minutes before turning the unit on to avoid damage to the compressor.
•
Donotattempttorepairorreplaceanypartofyour appliance unlessitisspecificallyrecommended inthis manual.A
qualifiedtechnician shoulddoall otherservicing or repairs.
WARNING
• Use two or more people to move and install appliance. Failure to do so can result in back or other injury.
•This appliance must be properly installed and located in accordance with the Installation Instructions before it is used.
•Do not touch the cold surfaces in the cold compartment when hands are damp or wet. Skin may stick to these
extremely cold surfaces.
•Setting temperature controls to the ZERO (0) position does not remove power to the light circuit, perimeter heaters, or
evaporator fans.
•
To ensure proper ventilation for your appliance , choose a well-ventilated area with temperatures above 50ºF
(10ºC) and below 100ºF (38ºC). This unit MUST be installed in an area protected from the elements, such as
wind, rain,watersprayordrips.
•
The appliance shouldnot be locatednext to ovens,grills or other sources of highheat.
•
It is important for the appliance to be level for proper operation. You may need to make adjustmentstolevelit.
•
Removethe packingmaterials and clean the appliance before using.
•
Donot use this apparatusforother than its intended purpose.

Page 6of 18
IMPORTANT SAFEGUARDS (cont.)
Electrical Connection
Do not, under any circumstances, cut or remove the third (ground) prong from the power cord. For personal safety,
this appliance must be properly grounded. The power cord of this appliance is equipped with a 3-prong grounding
plug that mates with a standard 3-prong grounding wall outlet to minimize the possibility ofelectric shock hazard from
the appliance. Have the wall outlet andcircuit checkedby aqualified electrician tomakesuretheoutletisproperly
grounded.The
appliance should always beplugged intoits ownindividualelectrical outletwhichhasa voltagerating
that matchestheratinglabelon the appliance. This provides the best performance and also prevents overloading
house wiring circuits which could cause a fire hazard from overheated wires. Repair orreplaceimmediately allpower
cordsthathavebecomefrayedor otherwisedamaged. Donot use a cord that shows cracks or abrasion damage along
its length or at either end. When moving the
appliance ,be careful not to damagethe power cord.
Refrigerant Disposal
If you are throwing away your old appliance it may have a cooling system that uses “Ozone Depleting” chemicals or a
Flammable Refrigerant. Make sure the refrigerant is removed and properly disposed of In Accordance With Local
Regulations by a qualified service technician.
CASTER INSTALLATION
NOTE: There are 4 casters to install. Install the 2 with brakes on front of unit and install the 2 without brakes on rear
of unit.
1. Remove 4 screws (1), lock washers (2) and flat washers (3). Remove skid (4) from bottom of unit (5).
2. Screw in the 4 provided stem casters (6) into the base (7) of the unit (5) where the skid mounting screws were
removed.
4
5
7
2
3
6
1

Page 7of 18
DIMENSIONS
TECHNICAL INFORMATION
Model 69K-769 69K-770 69K-771
in: Exterior Dimension W*D*H 29 x 30.3 x 45.4 48.4 x 30.3 x 45.4 61.2 x 30.3 x 45.4
mm: Exterior Dimension W*D*H 735 x 770 x 1152 1230 x 770 x 1152 1555 x 770 x 1152
in: Depth With Door(s) Open 58 53 59.5
mm: Depth With Door(s) Open 1473 1346 1511
in: Interior Dimensions W*D*H 24 x 25 x 26.6 43.5 x 25 x 26.6 56.3 x 25 x 26.6
mm: Interior Dimensions W*D*H 610 x 636 x 676 1105 x 636 x 676 1430 x 636 x 676
Nominal Capacity 7.59 Cu Ft / 215 L 13.77 Cu Ft / 390 L 17.93 Cu Ft / 505 L
Unit Weight 150 lb / 68 kg 256 lb / 116 kg 298 lb / 135 kg
Hinged Doors 1 2 2
Shelves 1 2 2
Electrical Service 115V/60Hz/1Ph 115V/60Hz/1Ph 115V/60Hz/1Ph
Wattage 264 357 406
Amp Draw 3.6 4.3 5.6
Refrigerant R290 R290 R290
Provided 6’NEMACord Set 5-15 5-15 5-15
69K-769
69K-770
48.4 in
(1230 mm)
29 in
(735 mm)
18.5 in
(470 mm)
45.4 in (1152) mm)
42.3 in (1074 mm)
30.3 in (770 mm)
45.4 in (1152) mm)
3
.1 in (80 mm)
44.7 in
(1130 mm)
61.2 in
(1555 mm)
57.5 in
(1460 mm)
26.75 in (680 mm)
45.4 in (1152) mm)
69K
-771

Page 8of 18
RECEIVING AND INSPECTING THE EQUIPMENT
Even though most equipment is shipped crated, care should be taken during unloading so the equipment is not damaged
while being moved into the building.
1. Visually inspect the exterior of the package and skid or container. Any damage should be noted and formally reported to the
delivering carrier as soon as possible within 10 days.
2. If damaged, open and inspect the contents with the carrier.
3. In the event that the exterior is not damaged, yet upon opening, there is concealed damage to the equipment, notify the
carrier. Notification should be made verbally as well as in written form.
4. Request an inspection by the shipping company of the damaged equipment. This should be done within 10 days from receipt
of the equipment.
5. Be certain to check the compressor compartment housing and visually inspect the refrigeration package. Be sure lines are
secure and base is still intact.
6. Freight carriers can supply the necessary damage forms upon request.
7. Retain all crating material until an inspection has been made or waived.
INTRODUCTION
This user’s manual is intended for installing, using and servicing your Kratos Appliance. It is recommended that this
manual be kept in an accessible place. Every Kratos machine is designed and manufactured according to the highest
standards of safety and performance. It meets or exceeds the safety standard of UL 471 and sanitation standard NSF 7.
Kratos assumes no liability or responsibility ofany kind for products manufactured by Kratos, that have been altered in anyway,
including the use ofanyparts and/orother components not specifically approved by the manufacturer. Kratos reserves the right to
make design changes and/or improvements at any time. Specifications and designs are subject to change withoutnotice.

Page 9of 18
COMPONENT INFORMATION
CASTERS
(refer to caster
installation for
mounting)
CASTERS
(refer to caster
installation for
mounting)
CASTERS
(refer to caster
installation for
mounting)
POWER
SWITCH
& CORD
ON UNIT REAR
69K-770
69K-769
PAN COVER
THERMOSTAT
CONTROL PANEL
REFRIGERATOR
SOLID DOOR
(RIGHT)
REFRIGERATOR
SOLID DOOR
(LEFT)
REFRIGERATOR
SOLID DOOR
THERMOSTAT
CONTROL PANEL
MXSR60S
THERMOSTAT
CONTROL PANEL
REFRIGERATOR
SOLID DOOR
(LEFT)
REFRIGERATOR
SOLID DOOR
(RIGHT)
POWER
SWITCH
POWER
SWITCH
& CORD
ON UNIT REAR
PAN COVER
PAN COVER
POWER
SWITCH
& CORD
ON UNIT REAR

Page 10 of 18
APPLIANCE INSTALLATION
Remove Packaging Materials
IMPORTANT:
Do not remove any permanent instruction labels or the data label on your appliance.
•Remove tape and glue from your appliance before using.
•To remove any remaining tape or glue, rub the area briskly with your thumb. Tape or glue residue can also be
easily removed by rubbing a small amount of liquid dish soap over the adhesive with your fingers. Wipe with
warm water and dry with a soft cloth.
•Do not use sharp instruments, rubbing alcohol, flammable fluids, or abrasive cleaners to remove tape or glue.
These products can damage the surface of your appliance.
NOTICE:
LOSS OR SPOILAGE OF PRODUCTS IN YOUR APPLIANCE IS NOT COVERED BY WARRANTY. IN ADDITION TO
FOLLOWING RECOMMENDED INSTALLATION PROCEDURES. PLEASE RUN THE APPLIANCE 24 HOURS PRIOR
TO USAGE.
Location Requirements
•Appliances represented in this manual are intended for indoor use only.
•Be sure the location chosen has a floor strong enough to support the total weight of the cabinet and contents as a fully
loaded unit can weigh as much as 800 pounds.
•Reinforce the floor as necessary to provide for maximum loading.
•For the most efficient refrigeration, be sure to provide good air circulation inside and out.
Inside cabinet:
Do not pack the units so full that air cannot circulate. The refrigerated air is discharged at the top rear of the unit. It is
important to allow for proper air flow from the top rear to the bottom of the unit. Obstructions to this air flow can cause
evaporator coil freeze ups and loss of temperature or overflow of water from the evaporator drain pan. The shelves have a
rear turn up on them to prevent this. However, bags and other items can still be located to the far rear of the cabinet. Air is
brought into the evaporator coil with fans mounted to the front of the coil.
Outside cabinet:
Be sure that the unit has access to ample air. Avoid hot corners and locations near stoves and ovens.
It is recommended that the unit be installed no closer than 2" (51mm) from any wall, and a max door swing clearance of
60.5 in (1537mm).
WARNING
Excessive Weight Hazard
Use two or more persons to move and install appliances.
Failure to do so may result in back or other injury.

Page 11 of 18
APPLIANCE INSTALLATION (cont.)
Installation Clearance
Leveling
Ensure the floor where the unit is to be located is level, or shim the unit to level.
Stabilizing
All models are supplied with casters for your convenience (refer to caster installation for mounting). It is very important,
however, that the cabinet be installed in a stable condition with the front wheels locked while in use. Should it become
necessary to lay the unit on its side or back for any reason, allow at least 24 hours before start-up to allow compressor oil
to flow back into place. Failure to meet this requirement can cause compressor failure and unit damage, which would not
be covered by your warranty.
NOTICE:
Unit repairs will not be subject to standard unit warranties if due to improper installation procedures.
Electrical Connection
Refer to the amperage data on the Technical Information table, the serial tag, your local code or the National Electrical Code to
be sure that unit is connected to the proper power source.
DANGER
The unit must be turned OFF and disconnected from the power source whenever
performing service, maintenance functions or cleaning the refrigerated area. Failure to
comply may result in Death or Severe Personnel Injury.
69K-770/ MXSR60S
69K-769 2”
51mm
MXSR27S
58 in
1473 mm
Max Door Swing Clearance
69K-770
53 in
1346 mm
Max Door Swing Clearance
MXSR60S
59.5 in
1511 mm
Max Door Swing Clearance

Page 12 of 18
OPERATION
Refrigerated cycle
Refrigerators: During the refrigeration cycle, the evaporator fans will run continuously even when one or more doors are
open. The door switch will activate the lights when opened on solid door models only. Glass door models lights are turned
on manually using a switch located next to the main power switch.
1. Every 6 hours, the unit will turn off and to allow the evaporator coil to air defrost. The controller now displays defrost
symbol. When the coil temperature reaches 53°F (12°C) or after 30 minutes of defrost, the unit will turn on again.
2.
Anti-condensation heaters on door frames work in conjunction with the compressor.
3.
Recommended holding temperature range: 34° to 40°F (2° to 5°C).
4.
Comes factory set to 39°F (4°C).
Power Switch:
The power switch is located on the front of the bottom panel. When the unit is on, the switch will glow green.
SOLID-STATE THERMOSTAT DESCRIPTIONS
1. FRONT PANEL COMMANDS
To display target set point; in programming mode it selects a parameter or confirm an operation.
To start a manual defrost.
In programming mode it browses the parameter codes or increases the displayed value.
In programming mode it browses the parameter codes or decreases the displayed value.
KEYS COMBINATION
To lock or unlock the keyboard.
To enter in programming mode.
To return to room temperature display.
1.1 Function of LEDS

Page 13 of 18
OPERATION (cont.)
2. MAIN FUNCTIONS
2.1 HOW TO SEE THE SET POINT
1. Push and immediately release the SET key, the set point will be showed;
2. Push and immediately release the SET key or wait about 5s to return to normal
visualization.
2.2 HOW TO CHANGE THE SETPOINT
1. Push the SET key for more than 2 seconds to change the Set point value;
2. The value of the set point will be displayed and the “°C” or “°F” LED starts blinking;
3. To change the Set value push the or arrows.
4. To memorize the new set point value push the SET key again or wait 10s.
2.3 HOW TO START A MANUAL DEFFROST
Push the DEF key for more than 2 seconds and a manual defrost will start
2.4 TO LOCK THE KEYBOARD
1. Keep pressed for more than 3s the and keys.
2. The “OF” message will be displayed and the keyboard will be locked. If a key is pressed more
than 3s the “OF” message will be displayed.
2.5 TO UNLOCK THE KEYBOARD
Keep pressed together for more than 3s the and keys till the “on”
message will be displayed.
3. ALARM SIGNALLING
3.1. ALARM RECOVERY
Probe alarms P1” and “P2” start some seconds after the fault in the related probe; they automatically
stop some seconds after the probe restarts normal operation. Check connections before replacing the
probe. Temperature alarms “HA” and “LA” automatically stop as soon as the temperature returns to normal
values.
Alarms “EA” and “CA” (with iF=bL) recover as soon as the digital input is disabled.

Page 14 of 18
CLEANING AND MAINTENANCE
DANGER
The unit must be turned off and disconnected from the power source whenever performing
service, maintenance functions or cleaning the refrigerated area. Failure to comply may
result in death or severe personnel injury.
Exterior and Interior Cleaning of Appliances
Clean using soap and warm water. If this isn't sufficient, try ammonia and water or a nonabrasive liquid cleaner. When cleaning
the exterior, always rub with the "grain" of the stainless steel to avoid marring the finish.
•Do not use an abrasive cleaner because it will scratch the stainless steel and plastic and can damage the breaker strips and
gaskets.
Cleaning the Condenser Coil
Regular cleaning is recommended every 90 days. In some instances, you may find that there is a large amount of debris and
dust or grease accumulated prior to the 90 day time frame. In these cases the condenser coil should be cleaned every 30
days.
If the buildup on the coil consists of only light dust and debris, the condenser coil can be cleaned with a simple brush. Heavier
dust build-up may require a vacuum or even compressed air to blow through the condenser coil.
If heavy grease is present, there are de-greasing agents available for refrigeration use and specifically for the condenser coils.
The condenser coil may require cleaning with the de-greasing agent and then blown through with compressed air.
Failure to maintain a clean condenser coil can initially cause high temperatures and excessive run times. Continuous operation
with dirty or clogged condenser coils can result in compressor failures. Neglecting the condenser coil cleaning procedures will
void any warranties associated with the compressor or cost to replace the compressor.
•For efficient operation, keep the condenser surface free of dust, dirt, and lint.
•We recommend cleaning the condenser coil at least once per month.
•Clean the condenser with a commercial condenser coil cleaner and a soft brush, available from any commercial
refrigeration equipment retailer, or vacuuming the condenser with a shop vac or use CO2.
CAUTION
Never use a high pressure water wash for this cleaning procedure as water can damage the
electrical components located near or at the condenser coil.
In order to maintain proper refrigeration performance, the condenser fins must be cleaned of dust, dirt and grease regularly.
It is recommended that this be done at least every three months. If conditions are such that the condenser is totally blocked
in three months, the frequency of cleaning should be increased. Clean the condenser with a vacuum cleaner or stiff brush.
If extremely dirty, a commercial-grade condenser cleaner may be required.

Page 15 of 18
CLEANING AND MAINTENANCE (cont.)
Stainless Steel Care and Cleaning
To prevent rust or discoloration on stainless steel several important steps need to be taken. First, we need to understand
the properties of stainless steel. Stainless steel contains 70-80% iron which will rust. It also contains 12-20% chromium
which forms an invisible passive film over the steels surface which acts as a shield against corrosion. As long as the
protective layer is intact, the metal still resists oxidation. If the film is broken or contaminated, outside elements can begin
to breakdown the steel and begin to form rust or discoloration.
CAUTION
Proper cleaning of stainless steel requires soft cloths or plastic scouring pads, never use
steel pads, wire brushes or scrapers!
Cleaning solutions need to be alkaline based or non-chloride based. Any cleaner containing chlorides will damage the
protective film of the stainless steel. If cleaners containing chlorides are used, be sure to rinse and dry thoroughly.
Routine cleaning of stainless steel can be done with soap and water. Extreme stains or grease should be cleaned with a
non-abrasive cleaner and plastic scrub pad. It is always good to rub with the grain of the steel. There are also stainless
steel cleaners available which can restore and preserve the finish of the steel’s protective layer.
Early signs of stainless steel breakdown can consist of small pits and cracks. If this has begun, clean thoroughly and start
to apply stainless steel cleaners in attempt to restore the passivity of the steel.
CAUTION
Never use an acid based cleaning solution! Many food products have an acidic content
which can deteriorate the finish. Be sure to clean the stainless steel surfaces of all food
products.
Gasket Maintenance
Gaskets require regular cleaning to prevent mold and mildew build up and also to keep the elasticity of the gasket. Gasket
cleaning can be done with the use of warm soapy water. Avoid full strength cleaning products on gaskets. Do not use sharp
tools or knives to scrape or clean the gasket.
Gaskets can easily be replaced and don’t require the use of tools or authorized service technicians. The gaskets are "Dart"
style and can be pulled out of the grove in the door and replaced by pressing the new one back into place.
Doors/Hinges
If the door is beginning to sag, tighten the screws that mount the hinge brackets to the frame of the unit. If the doors are
loose or sagging, this can cause the hinge to pull out of the frame which may damage both doors and door hinges.
Drain Maintenance
Each unit has a drain located inside the unit which removes the condensation from the evaporator coil and evaporates it into
an external condensate evaporator pan. The drain can become loose or disconnected. If you notice excessive water
accumulation on the inside of the unit, be sure the drain tube is connected from the evaporator housing to the condensate
evaporator drain pan.
If water starts to collect underneath the unit, check the condensate evaporator drain tube to be sure it is still located inside the
drain pan.
If your floor is not level, this can also cause drain problems. Be sure all drain lines are free of obstructions because this may
cause water to back up and overflow the drain pans.

Page 16 of 18
TROUBLESHOOTING GUIDE
BEFORE CALLING FOR SERVICE
If the unit appears to be malfunctioning, read through the OPERATION section of this manual first. If the problem
persists, see Troubleshooting below. The problem may be somethingverysimplethatcan besolvedwithoutaservice
call.
TROUBLESHOOTING
Fault Probable Cause Action
Compressor is Not Running
Fuse blown or circuit breaker tripped
Replace fuse or reset circuit
breaker. If replacement of fuse or
reset of circuit breaker doesn’t
correct the problem contact a
qualified service technician.
Power cord unplugged Plug in power cord
Thermostat set too high Set thermostat to lower
temperature
Cabinet Temperature is too
Warm
Thermostat is set too high Set thermostat to lower
temperature.
Airflow is blocked
Re-arrange products to allow for
proper air flow. Make sure there is
at least four inches of clearance
from the fan
Low refrigerant levels Contact a qualified service technician to check refrigerant
levels
Door is slightly ajar Make sure door is completely
closed.
Interior Light is Not Working
Poor switch connection Turn off light switch and turn it back
on.
Bulb is not connected Make sure the bulb is correctly
inserted in the socket.
Bulb has burned out
Replace the bulb. If replacement of
bulb doesn’t correct the problem
contact a qualified service
technician.
Condensation is Collecting on
the Cabinet and/or Floor Gasket is not sealing properly Clean, repair, or replace the gasket as necessary

Page 17 of 18
WIRING DIAGRAMS
69K-769

Page 18 of 18
WIRING DIAGRAMS (cont.)
69K-770 / MXSR60S