LXe SERIES DISHWASHER
MODELS
LXeC ML-130191
LXeH ML-130192
LXe SERIES DISHWASHER
LXePR ML-130193
LXeR ML-130194
701 S. RIDGE AVENUE
TROY, OHIO 45374-0001
937 332-3000
www.hobartcorp.com
FORM 38404 Rev. A (March 2013)
© HOBART CORPORATION, 2010
– 2 –
TABLE OF CONTENTS
GENERAL .........................................................................................................................................4
INSTALLATION .................................................................................................................................5
Unpacking ................................................................................................................................... 5
Location ......................................................................................................................................5
Leveling ....................................................................................................................................... 5
Water Requirements ...................................................................................................................5
Plumbing Connections ................................................................................................................ 6
Electrical Connection ..................................................................................................................7
Electrical Data ............................................................................................................................. 7
Connection Method ....................................................................................................................8
Detergent and Rinse Aid .............................................................................................................9
Chemical Sanitizer (LXeC & LXePR) ......................................................................................... 10
Checking Sanitizer Concentration ............................................................................................ 10
Deliming Solution ...................................................................................................................... 10
Priming Chemical Pumps .......................................................................................................... 11
Installation Diagram (LXeC) ....................................................................................................... 12
Installation Diagram (LXeH) ....................................................................................................... 13
Installation Diagram (LXePR) ..................................................................................................... 14
Installation Diagram (LXeR) .......................................................................................................15
PROGRAMMING.............................................................................................................................16
Manager Mode Programming ...................................................................................................16
Programming Instructions ......................................................................................................... 16
Menu Display Prompts .............................................................................................................. 16
LXe Manager Mode Programming Card .................................................................................... 17
LXe advansys Manager Mode Programming Card .................................................................... 19
Parameters Menu Table ............................................................................................................21
OPERATION ....................................................................................................................................23
Before First Use ........................................................................................................................23
Controls ....................................................................................................................................23
Operating the LXe Dishwasher .................................................................................................. 24
Diagnostic/Error Messages .......................................................................................................25
Wash/Rinse Cycle Times (LXeC and LXeH) ...............................................................................26
Wash/Rinse Cycle Times (LXePR and LXeR).............................................................................26
Preparation ..............................................................................................................................26
Do's and Don'ts For Your New Hobart Dishwasher ..................................................................27
CLEANING ...................................................................................................................................... 28
MAINTENANCE ..............................................................................................................................29
Deliming .................................................................................................................................... 29
Lubrication ................................................................................................................................29
TROUBLESHOOTING ..................................................................................................................... 30
– 3 –
Installation, Operation and Care of
LXe SERIES DISHWASHERS
SAVE THESE INSTRUCTIONS
GENERAL
The LXe Series dishwashers are fully automatic, front-loading dishwashing machines. The LXe series
machines are capable of doing 24 to 34 racks per hour, depending on model.
All LXe Series dishwashers shut down automatically 4 hours after last use to conserve energy.
All LXeH and LXeR dishwashers include Sense-A-Temp™ to insure proper hot water temperature
during rinse.
Standard equipment includes two 20" x 20" racks, electronic controls, drain pump, rinse pump, chemical
pumps, ll hose, and drain hose.
MODEL DESCRIPTION
LXeC, LXePR Fresh water rinse; low-temperature, chemical-sanitizing models for use
with 6% sodium hypochlorite solution (bleach) as the sanitizing agent*.
Note: If 8.40% bleach is to be used, contact Hobart Service or your
chemical supplier to change the sanitizer pump settings. (Charges may
apply)
LXeH Fresh water rinse with a built-in 70°F rise booster heater. This allows an
incoming water temperature of 110°F.
LXeR Fresh water rinse with an internal energy recovery unit and a built-in 70°F
rise booster heater. Recommended incoming water temperature 55°F to
80°F.
* - Sanitizing agent must be used in accordance with the EPA-registered label use instructions.
– 4 –
INSTALLATION
UNPACKING
Immediately after unpacking the dishwasher, check for possible shipping damage. If this machine is
found to be damaged, save packaging material and contact the carrier within 15 days of delivery.
LOCATION
Prior to installation, verify that the electrical supply agrees with the specications on the machine data
plate, which is located on the top of the door.
Steam generated from normal operation may escape from the door. Wood, laminates, veneers, etc. are
unsuitable materials for use in areas exposed to dishwasher steam and detergents. Stainless steel or
other moisture-resistant shields are recommended for surfaces adjacent to LXe sides and top.
LEVELING
The machine must be level to operate properly. Place the dishwasher in its operating location. Level
the machine before any connections are made. Using a carpenter's level placed diagonally on the rack
tracks, level the machine front to back and side to side by threading the adjustable feet in or out. After
leveling the machine, cover the exposed threads of the adjustable feet with black rubber tubing
supplied. (See separate instructions furnished with machine.)
WATER REQUIREMENTS
Proper water quality can improve ware washing performance by reducing spotting, enhancing
effectiveness of labor and extending equipment life. Water conditions vary from one location to another.
The recommended proper water treatment for effective and efcient use of this equipment will also
vary depending on the local water conditions. Ask your municipal water supplier for details about your
local water conditions prior to installation.
Recommended water hardness is 3 grains of hardness per gallon or less. Higher hardness may cause
excessive formation of lime scale. Water hardness above 3 grains per gallon requires water treatment.
Water treatment has been shown to reduce costs associated with machine cleaning, reduce deliming
of the dishwasher, and reduce detergent usage in the dishwasher.
High iron levels in the water supply can cause staining and may require an iron lter. High
chloride levels in the water supply can cause pitting and may require a chloride removal system. Contact
your local water treatment professional for proper water treatment.
Sediment may require a particulate lter. Dissolved solids may require water treatment such as a water
softener, reverse osmosis system, etc. Contact your local water treatment professional for proper water
treatment.
If an inspection of the dishwasher or booster heater reveals lime buildup after the equipment has been
in service, water treatment is recommended. If a water softener is already in place, ensure there is a
sufcient level of salt. Contact your local Hobart Service ofce for specic recommendations.
– 5 –
A water hammer arrestor (meeting ASSE-1010 Standard or equivalent) should be installed (supplied
by others) in the common water supply line at the service connection.
The plumber connecting this machine is responsible for making certain that water lines are THOROUGHLY
FLUSHED OUT BEFORE connecting to the dishwasher. This "ush-out" is necessary to remove all
foreign matter, such as chips (resulting from cutting or threading of pipes) pipe joint compound from the
lines; or, if soldered ttings are used, bits of solder or cuttings from the tubing. Debris, if not removed,
may lodge in the dishwasher's plumbing components and render them inoperative. Manual valves
or solenoid valves fouled by foreign matter and any expenses resulting from this fouling are NOT the
responsibility of the manufacturer and associated repair costs are not covered under warranty.
Water supply requirements are as follows:
MODEL TEMPERATURE
LXeC 120°F Minimum
LXePR 120°F Minimum
LXeH 110°F Minimum
LXeR 55°F Minimum, 80°F Maximum
NOTE: On LXeR installations, if cold water supply temperature is consistently above 80°F or if excessive
water vapor or steam is entering the room after the condensing cycle is complete, contact Hobart
Service to increase condensing time.
Required owing water pressure to the dishmachine is 15-65 PSIG. If pressures higher than 65 PSIG
are present, a pressure regulating valve must be installed in the water line to the dishmachine (by
others). If owing pressure is less than 15 psi, improper machine operation may result. All LXe models
are equipped with a pumped rinse system; therefore, a water pressure gauge is not required and is
not supplied with the machine.
The water pressure regulator must have a relief bypass. Failure to use the proper type
of pressure regulator may result in damage to the unit.
A manual shutoff valve (not supplied) should be installed upstream of the ll hose to accommodate
servicing the machine.
It is recommended that a line strainer (not supplied) be installed in the supply line between the manual
shutoff valve (not supplied) and the connection point on the machine. Make plumbing connections with
1
⁄2" minimum copper piping OD (3⁄4" recommended), with a 3⁄4" male garden hose tting (not supplied).
See installation diagrams, pages 16-17.
PLUMBING CONNECTIONS
Plumbing connections must comply with applicable sanitary, safety, and plumbing
codes.
Drain
A drain hose, 5⁄8" inside diameter and 6' long, is provided. This should be securely plumbed into a
drain. Use care not to kink hose. See installation diagrams, pages 16-17. Drain must have a minimum
ow capacity of 5 gallons per minute.
– 6 –
ELECTRICAL CONNECTION
Electrical and grounding connections must comply with the applicable portions of
the National Electrical Code and/or other local electrical codes.
Disconnect the electrical power to the machine and follow lockout/tagout procedures.
ELECTRICAL DATA
Complied in accordance with the National Electrical Code NFPA-70, latest addition.
For supply connections, use copper wire only rated at 90°C minimum.
LXeC
LXePR
LXeH
LXeR
ledoM esahP/ztreH/stloV
120/208-240(3W)/60/1*
1/06/021
208-240/60/1
208-240/60/3
220-240/50/1
tiucriCylppuSmuminiM
yticapmArotcudnoC
20 20
40 40
30 30
40 40
evitcetorPmumixaM
yticapmAeciveD
*The (3W) systems require three power wires that include a current carrying neutral. An additional
fourth wire must be provided for machine ground.
Refer to the data plate on the door handle of the machine and the electrical label on the back side of
the lower front panel for proper selection.
– 7 –
Connection Method
1. Remove the lower front panel by removing the two screws at the bottom of the panel (Fig. 1).
REMOVE TWO SCREWS
Fig. 1
2. Open door of dishwasher and remove the two left screws and the top right screw (Fig. 2). Pull
top of unit forward approximately 1” and remove the left side panel.
REMOVE THREE SCREWS
Fig. 2
– 8 –
3. A hole for 1” trade size conduit is supplied at the lower right in the back of the machine (Fig. 3).
If necessary due to space requirements, remove the knockout and use a 45° tting.
KNOCKOUT
Fig. 3
4. Install 1” trade size conduit and tting. Leave at least four feet of electrical line between wall
connection and machine. This allows machine to be pulled away from the wall for cleaning and/
or servicing.
5. Feed wires thru base of unit to front of unit. At least 24” and not more than 28” of the required
wire size must extend from the end of the conduit tting.
6. Make electrical connections according to wiring diagram supplied with the machine and secure
wires to the machine service connection. Keep excess wire in the base of the unit to a minimum.
7. Replace the left side panel, top of unit, and lower front panel. Re-install the three screws located
behind the door and the two screws at the bottom of the front panel.
DETERGENT AND RINSE AID
Use only commercial-grade detergents recommended by your chemical professional. Do not use
detergents formulated for residential dishwashers.
The detergent and rinse aid pump "ON" times are factory-set. If adjustments are required, contact your
local Hobart Service Ofce or your chemical supplier.
Place the detergent and rinse aid containers (which are obtained from an independent supplier) in a
location where the delivery tubes will reach them.
Remove the detergent bottle cap and put the red delivery tube in the detergent container.
Remove the rinse aid bottle cap and place the blue delivery tube in the rinse aid container.
Be sure to push the delivery tube standpipes completely to the bottom of each container. Check to
make sure there are no obstructions or kinks in the delivery tubes.
– 9 –
CHEMICAL SANITIZER (LXeC & LXePR)
Items such as pewter, aluminum and silver will be attacked by sodium hypochlorite
(bleach). Therefore, chemical-sanitizing dishwashers should not be used to wash such items.
On models LXeC & LXePR, the chemical sanitizer pump is factory-set for use with 6% sodium hypochlorite
solution.
If 8.40% sodium hypochlorite solution is to be used, contact your local Hobart Service Ofce.
On LXeC models, place a 1-gallon bottle of 6% or 8.40% sodium hypochlorite solution (bleach) in a suitable
location no higher than 10 inches off the oor. Do not pre-mix sanitizing solution with water or any other
liquid.
On LXePR models, place a sanitizer approved for potable water rinse machines in a suitable location no
higher than 10 inches off the oor. Do not pre-mix sanitizing solution with water or any other liquid.
Never premix a wetting agent with the sanitizing solution. Mixing may cause
hazardous gas to form.
Remove the sanitizer bottle cap and place the white delivery tube in the sanitizer container. Be sure to
push the delivery tube standpipe completely to the bottom of the container. Check to make sure there are
no obstructions or kinks in the delivery tube.
Frequently check your sanitizer bottle to make sure there is a sufcient chemical supply.
CHECKING SANITIZER CONCENTRATION
Verify there is sufcient chemical supply in the sanitizer bottle and that the delivery tube standpipe is
inserted completely to the bottom of the chemical container. Place a glass rack, with glasses, in the
machine.
On LXePR models, the PuriRinse feature must be deactivated to properly check the sanitizer concentration.
To deactivate PuriRinse, press and hold the WASH key for ve seconds until wash cycle starts.
On LXeC models, press the WASH key to run a cycle. At the end of the cycle, open the door.
Follow the directions precisely that are on the litmus paper vial and test the water on the surface of the
bottom of the glasses. Concentration should be 50 p.p.m. minimum to 100 p.p.m. maximum.
If reading is incorrect, contact your local Hobart Service Ofce or chemical provider for adjustments.
DELIMING SOLUTION
All LXePR and LXeR models are equipped with an automatic deliming system. At installation, a qualied
Hobart Service technician or your chemical supplier must adjust the total water hardness setting to
properly set the delime intervals.
Remove the deliming agent bottle cap and put the black delivery tube in the container.
Be sure to push the delivery tube standpipe completely to the bottom of the container. Check to make
sure there are no obstructions or kinks in the delivery tube.
– 10 –
PRIMING CHEMICAL PUMPS
When a chemical becomes empty, the priming operation starts automatically the next time the machine
is turned on or a wash cycle is started. Note that the initial prime time for all pumps (Detergent, Rinse
Agent, and Sanitizer) is 60 seconds. If the chemical is not sensed within 60 seconds, the add chemical
indicator will ash. After the chemical is sensed, the indicator in the display turns off; and the pump
continues to prime for 10 seconds to allow the chemicals to reach the machine. If all chemicals are
empty, the sanitizer will prime rst followed by detergent. Only one chemical pump will run at a time.
If chemicals are not sensed after three consecutive priming operations, the add chemical indicator will
ash and priming is cancelled. The next time a wash cycle is started, the add chemical indicator will
continue to ash. Verify that the chemical bottles are not empty and that the delivery tube standpipes
are inserted completely to the bottom of the containers.
The priming operation can be reset by turning the dishwasher off, then back on.
If the chemical bottles are not empty and the delivery tube standpipes are inserted correctly, then the
chemical sensor or pumps may have malfunctioned; contact your local Hobart Service Ofce.
– 11 –
Mixing may cause hazardous gas to form.
3
1-1/2" TRADE SIZE
PIPE MIN. REDUCED
DOWN TO 3/4" FPT
CONNECTION (BY
CUSTOMER)
RECOMMENDED WATER
SERVICE ROUGH-IN
1/2" TRADE SIZE
PIPE MIN. W/SHUTOFF
VALVE, LINE STRAINER
& 3/4" MALE GARDEN
HOSE FITTING (BY
CUSTOMER).
ADDITIONAL CLEARANCE REQUIRED TO
SLIDE UNIT FORWARD FOR SERVICE ONLY
CHLORINE
SANITIZER
LXeC ONLY
CHEMICAL BOTTLES
MAY BE LOCATED ON
EITHER SIDE OF MACHINE
E1
FLOOR LINE
P2
DETERGENT &
RINSE-AID
TRIM STRIP
(OPTIONAL)
17" OR LESS
RECOMMENDED
32 15/16"
CLEARANCE
SERVICE
39 1/2"
MIN.
32 1/2"
13/16"
22 5/16"
23 15/16"
43 1/2"
10 9/16"
LOADING
1 1/16"
HEIGHT
MAX.
17"
21"
25 9/16"
Do not premix other chemcals and sodium hypochlorite (liquid bleach).
Required owing water pressure to the dishmachine is 15-65 PSIG. If pressures
higher than 65 PSIG are present, a pressure regulating valve must be installed in the water line to the
dishmachine (by others).
Pressure guage not provided on pumped rinse machines.
Important: Chemical containers should be placed no higher than 10" above oor.
If chemical containers are to be placed in cabinet adjacent to machine, a 1/2" dia. hole is required in
the cabinet to run chemical supply line.
Use only 6% or 8.4% sodium hypochlorite (liquid bleach) as sanitizing chemical to insure proper
operation of dishmachine.
Certain materials including silver plate, aluminum and pewter are attacked by sodium hypochlorite
(liquid bleach).
NOTES:
1. All vertical machine dimensions taken from oor may be increased by 1".
2. Moist air escapes from the door.
Use only moisture resistant materials adjacent to dishmachine sides and top.
3. A vent hood is not recommended above the undercounter dishmachine since it does not produce
excessive vapors.
PLUMBING NOTES:
1. Water hammer arrestor (meeting ASSE-1010 standard or equivalent) to be supplied (by others) in
common water supply line at service connection.
2. Recommended water hardness to be 3 grains or less for best results.
3. If drain hose is looped above a sink, the loop must not exceed 38" AFF.
CONNECTION INFORMATION
(AFF = ABOVE FINISHED FLOOR)
LEGEND
E1 ELECTRICAL CONNECTION: 1-3/8" DIA. HOLE
FOR 1" TRADE SIZE CONDUIT; 4-5/8" AFF.
P1 SINGLE FILL AND RINSE CONNECTION:
3/4" FEMALE GARDEN HOSE FITTING ON 6' LONG
HOSE SUPPLIED WITH MACHINE;
120°F WATER MIN. FOR LXeC, 140°F
RECOMMENDED.
P2 DRAIN CONNECTION: 5/8" BARB FITTING WITH
6' LONG HOSE SUPPLIED WITH MACHINE.
9 7/16"
E1 P2 P1
WALL
P2
9"
MIN.
MODEL VOLTS/HERTZ/PHASE
RATED
AMPS
MIN SUPPLY
CKT CONDUCT
AMPACITY
LXeC 120/60/1 13.4 20 20
HEAT OUTPUT, BTU/HR
MODEL LATENT SENSIBLE
LXeC 1900 800
SHIPPING WEIGHTS LXeC
NET WEIGHT OF MACHINE 150 LBS
DOMESTIC SHIPPING WEIGHT 170 LBS
INSTALLATION DIAGRAM (LXeC)
MAX
PROTECTIVE
DEVICES
– 12 –
ACCESSORY CORD KITS AVAILABLE FOR ALL MACHINES
NOTE: FOR SUPPLY CONNECTIONS, USE COPPER WIRE ONLY
RATED AT 90°C MINIMUM.
Electrical and grounding
connections must comply with the applicable portions of
the National Electrical Code and/or other local electrical
codes.
Plumbing connections must comply with applicable
sanitary, safety and plumbing codes. Drain and ll line
congurations vary, some methods are shown on this
drawing.
higher than 65 PSIG are present, a pressure regulating valve must be installed in the water line to the
Required owing water pressure to the dishmachine is 15-65 PSIG. If pressures
dishmachine (by others).
Pressure guage not provided on pumped rinse machines.
Important: The chemical containers should be placed no higher than 10" above oor.
If chemical containers are to be placed in cabinet adjacent to machine, a 1/2" dia. hole is required in
the cabinet to run chemical supply line.
NOTES:
1. All vertical machine dimensions taken from oor may be increased by 1".
2. Moist air escapes from the door.
Use only moisture resistant materials adjacent to dishmachine sides and top.
3. A vent hood is not recommended above the undercounter dishmachine since it does not produce
excessive vapors.
PLUMBING NOTES:
1. Water hammer arrestor (meeting ASSE-1010 standard or equivalent) to be supplied (by others) in
common water supply line at service connection.
2. Recommended water hardness to be 3 grains or less for best results.
3. If drain hose is looped above a sink, the loop must not exceed 38" AFF.
CONNECTION INFORMATION
(AFF = ABOVE FINISHED FLOOR)
LEGEND
E1 ELECTRICAL CONNECTION: 1-3/8" DIA. HOLE
FOR 1" TRADE SIZE CONDUIT; 4-5/8" AFF.
P1 SINGLE FILL AND RINSE CONNECTION:
3/4" FEMALE GARDEN HOSE FITTING ON 6' LONG
HOSE SUPPLIED WITH MACHINE;
110°F WATER MIN. FOR LXeH.
P2 DRAIN CONNECTION: 5/8" BARB FITTING WITH
6' LONG HOSE SUPPLIED WITH MACHINE.
9 7/16"
E1 P2 P1
WALL
P2
9"
MIN.
TRIM STRIP
(OPTIONAL)
DETERGENT &
RINSE-AID
ADDITIONAL CLEARANCE REQUIRED TO
SLIDE UNIT FORWARD FOR SERVICE ONLY
MODEL VOLTS/HERTZ/PHASE
RATED
AMPS
208-240/60/1 30.5 40 40
LXeH
120/208-240(3W)/60/1* 30.5 40 40
208-240/60/3 23.9 30 30
220-240/50/1 30.5 40 40
HEAT OUTPUT, BTU/HR
MODEL LATENT SENSIBLE
LXeH 4600 4000
SHIPPING WEIGHTS LXeH
NET WEIGHT OF MACHINE 150 LBS
DOMESTIC SHIPPING WEIGHT 170 LBS
39 1/2"
SERVICE
CLEARANCE
MIN.
32 15/16"
MIN SUPPLY
CKT CONDUCT
AMPACITY
32 1/2"
E1
CHEMICAL BOTTLES
MAY BE LOCATED ON
EITHER SIDE OF MACHINE
MAX
PROTECTIVE
DEVICES
23 15/16"
1-1/2" TRADE SIZE
PIPE MIN. REDUCED
13/16"
22 5/16"
DOWN TO 3/4" FPT
CONNECTION (BY
CUSTOMER)
RECOMMENDED
P2
17" OR LESS
FLOOR LINE
RECOMMENDED WATER
SERVICE ROUGH-IN
1/2" TRADE SIZE
PIPE MIN. W/SHUTOFF
VALVE, LINE STRAINER
& 3/4" MALE GARDEN
HOSE FITTING (BY
CUSTOMER).
3
17"
MAX.
LOADING
HEIGHT
10 9/16"
1 1/16"
* THIS SYSTEM REQUIRES THREE POWER WIRES WHICH INCLUDES
A CURRENT CARRYING NEUTRAL, AN ADDITIONAL FOURTH WIRE
MUST BE PROVIDED FOR MACHINE GROUND.
ACCESSORY CORD KITS AVAILABLE FOR ALL MACHINES
NOTE: FOR SUPPLY CONNECTIONS, USE COPPER WIRE ONLY
RATED AT 90°C MINIMUM.
Electrical and grounding
connections must comply with the applicable portions of
the National Electrical Code and/or other local electrical
codes.
Plumbing connections must comply with applicable
sanitary, safety and plumbing codes. Drain and ll line
congurations vary, some methods are shown on this
drawing.
21"
25 9/16"
43 1/2"
INSTALLATION DIAGRAM (LXeH)
– 13 –
Mixing may cause hazardous gas to form.
MIN.
9"
9 7/16"
3
1-1/2" TRADE SIZE
PIPE MIN. REDUCED
DOWN TO 3/4" FPT
CONNECTION (BY
CUSTOMER)
RECOMMENDED WATER
SERVICE ROUGH-IN
1/2" TRADE SIZE
PIPE MIN. W/SHUTOFF
VALVE, LINE STRAINER
& 3/4" MALE GARDEN
HOSE FITTING (BY
CUSTOMER).
CHLORINE
SANITIZER
LXePR ONLY
ADDITIONAL CLEARANCE REQUIRED TO
SLIDE UNIT FORWARD FOR SERVICE ONLY
DELIMER
(ADDITIONAL
CLEARANCE
MAY BE
REQUIRED)
CHEMICAL BOTTLES
MAY BE LOCATED ON
EITHER SIDE OF MACHINE
E1
FLOOR LINE
P2
DETERGENT &
RINSE-AID
TRIM STRIP
(OPTIONAL)
17" OR LESS
RECOMMENDED
32 15/16"
MIN.
CLEARANCE
SERVICE
39 1/2"
32 1/2"
13/16"
22 5/16"
23 15/16"
43 1/2"
10 9/16"
LOADING
1 1/16"
HEIGHT
MAX.
17"
25 9/16"
21"
Do not pre-mix other chemicals and sodium hypochlorite (liquid bleach).
Required owing water pressure to the dishmachine is 15-65 PSIG. If pressures
higher than 65 PSIG are present, a pressure regulating valve must be installed in the water line to the
dishmachine (by others).
Pressure guage not provided on pumped rinse machines.
Important: The chemical containers should be placed no higher than 10" above oor.
If chemical containers are to be placed in cabinet adjacent to machine, a 1/2" dia. hole is required in
the cabinet to run chemical supply line.
Use only 6% or 8.4% sodium hypochlorite (liquid bleach) as sanitizing chemical to insure proper
operation of dishmachine.
Certain materials including silver plate, aluminum and pewter are attacked by sodium hypochlorite
(liquid bleach).
NOTES:
1. All vertical machine dimensions taken from oor may be increased by 1".
2. Moist air escapes from the door.
Use only moisture resistant materials adjacent to dishmachine sides and top.
3. A vent hood is not recommended above the undercounter dishmachine since it does not produce
excessive vapors.
PLUMBING NOTES:
1. Water hammer arrestor (meeting ASSE-1010 standard or equivalent) to be supplied (by others) in
common water supply line at service connection.
2. Recommended water hardness to be 3 grains or less for best results.
3. If drain hose is looped above a sink, the loop must not exceed 38" AFF.
CONNECTION INFORMATION
(AFF = ABOVE FINISHED FLOOR)
LEGEND
E1 ELECTRICAL CONNECTION: 1-3/8" DIA. HOLE
FOR 1" TRADE SIZE CONDUIT; 4-5/8" AFF.
P1 SINGLE FILL AND RINSE CONNECTION:
3/4" FEMALE GARDEN HOSE FITTING ON 6' LONG
HOSE SUPPLIED WITH MACHINE;
120°F WATER MIN. FOR LXePR, 140°F
RECOMMENDED.
P2 DRAIN CONNECTION: 5/8" BARB FITTING WITH
6' LONG HOSE SUPPLIED WITH MACHINE.
E1 P2 P1
WALL
P2
MODEL VOLTS/HERTZ/PHASE
RATED
AMPS
MIN SUPPLY
CKT CONDUCT
AMPACITY
PROTECTIVE
DEVICES
LXePR 120/60/1 13.4 20 20
HEAT OUTPUT, BTU/HR
MODEL LATENT SENSIBLE
LXePR 1900 800
SHIPPING WEIGHTS LXePR
NET WEIGHT OF MACHINE 150 LBS
DOMESTIC SHIPPING WEIGHT 170 LBS
INSTALLATION DIAGRAM (LXePR)
MAX
– 14 –
ACCESSORY CORD KITS AVAILABLE FOR ALL MACHINES
NOTE: FOR SUPPLY CONNECTIONS, USE COPPER WIRE ONLY
RATED AT 90°C MINIMUM.
Electrical and grounding
connections must comply with the applicable portions of
the National Electrical Code and/or other local electrical
codes.
Plumbing connections must comply with applicable
sanitary, safety and plumbing codes. Drain and ll line
congurations vary, some methods are shown on this
drawing.
higher than 65 PSIG are present, a pressure regulating valve must be installed in the water line to the
E1 P2 P1
P2
WALL
9"
MIN.
9 7/16"
3
1-1/2" TRADE SIZE
PIPE MIN. REDUCED
DOWN TO 3/4" FPT
CONNECTION (BY
CUSTOMER)
RECOMMENDED WATER
SERVICE ROUGH-IN
1/2" TRADE SIZE
PIPE MIN. W/SHUTOFF
VALVE, LINE STRAINER
& 3/4" MALE GARDEN
HOSE FITTING (BY
CUSTOMER).
(COLD WATER)
ADDITIONAL CLEARANCE REQUIRED TO
SLIDE UNIT FORWARD FOR SERVICE ONLY
DELIMER
(ADDITIONAL
CLEARANCE
MAY BE
REQUIRED)
CHEMICAL BOTTLES
MAY BE LOCATED ON
EITHER SIDE OF MACHINE
E1
FLOOR LINE
P2
DETERGENT &
RINSE-AID
TRIM STRIP
(OPTIONAL)
17" OR LESS
RECOMMENDED
MIN.
CLEARANCE
SERVICE
39 1/2"
32 15/16"
32 1/2"
22 5/16"
13/16"
23 15/16"
44 11/16"
10 9/16"
1 1/16"
HEIGHT
LOADING
MAX.
17"
26 3/4"
21"
Required owing water pressure to the dishmachine is 15-65 PSIG. If pressures
dishmachine (by others).
Pressure guage not provided on pumped rinse machines.
If chemical containers are to be placed in cabinet adjacent to machine, a 1/2" dia. hole is required in
the cabinet to run chemical supply line.
NOTES:
1. All vertical machine dimensions taken from oor may be increased by 1".
2. Moist air escapes from the door.
Use only moisture resistant materials adjacent to dishmachine sides and top.
3. A vent hood is not recommended above the undercounter dishmachine since it does not produce
excessive vapors.
PLUMBING NOTES:
1. Water hammer arrestor (meeting ASSE-1010 standard or equivalent) to be supplied (by others) in
common water supply line at service connection.
2. Recommended water hardness to be 3 grains or less for best results.
3. If drain hose is looped above a sink, the loop must not exceed 38" AFF.
CONNECTION INFORMATION
(AFF = ABOVE FINISHED FLOOR)
LEGEND
E1 ELECTRICAL CONNECTION: 1-3/8" DIA. HOLE
FOR 1" TRADE SIZE CONDUIT; 4-5/8" AFF.
P1 SINGLE FILL AND RINSE CONNECTION:
3/4" FEMALE GARDEN HOSE FITTING ON 6' LONG
HOSE SUPPLIED WITH MACHINE;
55-80°F (COLD) RECOMMENDED FOR LXeR.
P2 DRAIN CONNECTION: 5/8" BARB FITTING WITH
6' LONG HOSE SUPPLIED WITH MACHINE.
MODEL VOLTS/HERTZ/PHASE
SHIPPING WEIGHTS LXeR
NET WEIGHT OF MACHINE 165 LBS
DOMESTIC SHIPPING WEIGHT 185 LBS
RATED
AMPS
208-240/60/1 30.5 40 40
LXeR
120/208-240(3W)/60/1* 30.5 40 40
208-240/60/3 23.9 30 30
220-240/50/1 30.5 40 40
HEAT OUTPUT, BTU/HR
MODEL LATENT SENSIBLE
LXeR 1100 2000
MIN SUPPLY
CKT CONDUCT
AMPACITY
MAX
PROTECTIVE
DEVICES
* THIS SYSTEM REQUIRES THREE POWER WIRES WHICH INCLUDES
A CURRENT CARRYING NEUTRAL, AN ADDITIONAL FOURTH WIRE
MUST BE PROVIDED FOR MACHINE GROUND.
ACCESSORY CORD KITS AVAILABLE FOR ALL MACHINES
NOTE: FOR SUPPLY CONNECTIONS, USE COPPER WIRE ONLY
RATED AT 90°C MINIMUM.
connections must comply with the applicable portions of
the National Electrical Code and/or other local electrical
codes.
Plumbing connections must comply with applicable
sanitary, safety and plumbing codes. Drain and ll line
congurations vary, some methods are shown on this
drawing.
– 15 –
INSTALLATION DIAGRAM (LXeR)
Electrical and grounding
PROGRAMMING
WASHDISPLAYPOWER UP ARROW
MANAGER MODE PROGRAMMING
The LXe series warewasher’s microprocessor allows customization options for machine operation. To
activate or change these features, the programming edit mode must be entered.
The manager programming mode requires a MANAGER CODE to be entered to access the options
listed in the PARAMETERS MENU. The manager code is 1001.
PROGRAMMING INSTRUCTIONS
All customization is performed through the on-screen menu using the UP Arrow, MENU/DOWN Arrow,
and the ENT keys located on the keypad at the top of the machine (Fig. 4).
MENU / DOWN ARROW ENTER
Fig. 4
ADVANSYS BUTTON
(LXePR AND LXeR MODELS ONLY)
MENU DISPLAY PROMPTS
The following prompts are used inside the menus:
• The UP arrow and MENU/DOWN arrow keys are used to change parameter values and to navigate
the menu.
• The ENT key is used to accept a value, to perform a specied action, or to enter a submenu.
• The text just to the right of the '>' symbol on the display screen shows what action or command
will occur if the ENT key is pressed.
– 16 –
Manager Mode Programming Card
UNDERCOUNTER
CHANGING PARAMETERS ENTER MANAGER SECURITY CODE: 10 01
MANAGER MENU
➜
(for 0)
➜
➜ ➜
(for 0)
ENTER SECURITY CODE
➜
(for 1)
➜
Edit Parameters
(for 1)
➜
CHANGING PARAMETERS IS REQUIRED TO CHANGE ALL CODES BELOW
CHEMICAL PUMP
until DETERGENT PUMP or RINSE AID PUMP
➜
➜
OR
➜
enable or disable the detergent pump or rinse aid pump.
to enable or disable
➜
until E XIT MENU
➜ ➜
➜ ➜
until E XIT
LOW TEMP ALARMS for hot machines only: enables or disables alert indicating that the final
rinse temperature has been below the minimum temperature for a period of time.
OR
➜
until LOW TEMP ALARMS
➜
until E XIT MENU
➜ ➜
➜ ➜
to enable or disable
until E XIT
➜
➜
DELIME enables or disables the delime reminder alert.
OR
➜
until DELIME
➜
➜ ➜
until E XIT MENU
➜ ➜
to enable or disable
until E XIT
➜
➜
TEMPERATURE UNITS allows the choice of Fahrenheit or Celsius.
➜
until TEMPERATURE UNITS
➜
OR
➜
➜ ➜
until E XIT MENU
➜ ➜
to choose Fahrenheit or Celsius
until E XIT
➜
ADD CHEMICAL ALERT enable or disable the audio alert of missing chemicals.
OR
➜
until ADD CHEM AUDIO ALERT
➜
until E XIT MENU
➜ ➜
➜ ➜
to enable or disable
until E XIT
➜
➜
END CYCLE AUDIO ALERT enable or disable the unit creating an audio alert at the end of
each wash cycle.
OR
➜
until END CYCLE AUDIO ALERT
➜
until E XIT MENU
➜ ➜
➜ ➜
until E XIT
to enable or disable
➜
➜
– 17 –
LANGUAGE allows the choice of English or French language.
until LANGUAGE
OR
➜
until E XIT MENU
➜
➜ ➜
➜ ➜
EXIT MENU TO MAIN MANAGER MENU
until E XIT MENU
➜
➜
to English or French
until E XIT
➜
➜
DELIME NOW allows for a single delime cycle to be run from the menu at anytime.
Note: this operation takes 20-45 minutes depending on conditions.
until DELIME NOW
➜
➜ ➜
to YES or NO
➜
(this will exit menu)
– 18 –
Manager Mode
UNDERCOUNTER
Programming Card
CHANGING PARAMETERS ENTER MANAGER SECURITY CODE: 10 01
MANAGER MENU
➜
➜ ➜
ENTER SECURITY CODE
➜
(for 1)
➜
(for 0)
➜
(for 0)
➜
(for 1)
Edit Parameters
CHANGING PARAMETERS IS REQUIRED TO CHANGE ALL CODES BELOW
CHEMICAL PUMP
until DETERGENT PUMP or RINSE AID PUMP
➜
➜
OR
➜
enable or disable the detergent pump or rinse aid pump.
to enable or disable
➜
until E XIT MENU
➜ ➜
➜ ➜
until E XIT
WASH CYCLE allows the customization of total run time.
until CYCLE TIME
➜
➜
OR ➜
➜ ➜
until E XIT MENU
to choose Light cycle, Normal cycle, Heavy cycle,
➜ ➜
until E XIT
➜
LOW TEMP ALARMS for hot machines only: (parameter) enables or disables alert indicating
that the final rinse temperature has been below the minimum temperature for a period of time.
OR
➜
until LOW TEMP ALARMS
➜
until E XIT MENU
➜ ➜
➜ ➜
to enable or disable
until E XIT
➜
➜
WASH ARM AL ARM enables or disables an alarm that aler ts the operator that the wash arms
may be clogged or blocked.
➜
until WASH ARM ALARM
➜
OR
➜
➜ ➜
until E XIT MENU
➜ ➜
to disable, Visual, or Audio & Visual
until E XIT
➜
DELIME enables or disables the delime reminder alert.
OR
➜
until DELIME
➜
➜ ➜
until E XIT MENU
➜ ➜
to enable or disable
until E XIT
➜
➜
TEMPERATURE UNITS allows the choice of Fahrenheit or Celsius.
until TEMPERATURE UNITS
➜
➜
OR ➜
➜ ➜
until E XIT MENU
➜ ➜
to choose Fahrenheit or Celsius
until E XIT
➜
POTABLE RINSE for cold machines only enables or disables the potable water rinse option.
OR
➜
until POTABLE RINSE
➜
until E XIT MENU
➜ ➜
➜ ➜
to enable or disable
until E XIT
➜
➜
– 19 –
DIRT Y WATER INDICATOR disables or gives a choice of how many cycles the machine will
run between dirty water alert and refresh cycles.
until DIRTY WATER INDICATOR
➜
➜ ➜
to Disable, 20 cycles, 40 cycles,
or 60 cycles
➜
OR ➜
until E XIT MENU
➜ ➜
until E XIT
➜
ENERGY SAVER MODE disables or gives choice of how many hours before the unit will
stay on before entering energy saving mode.
until ENERGY SAVING MODE
➜
➜
OR ➜
➜ ➜
until E XIT MENU
➜ ➜
to Disabled, 1 Hour, 2 Hours, or 3 Hours
until E XIT
➜
ADD CHEMICAL ALERT enable or disable the audio alert of missing chemicals.
OR
➜
until ADD CHEM AUDIO ALERT
➜
until E XIT MENU
➜ ➜
➜ ➜
to enable or disable
until E XIT
➜
➜
END CYCLE AUDIO ALERT enable or disable the unit creating an audio alert at the end of
each wash cycle.
OR
➜
until END CYCLE AUDIO ALERT
➜
until E XIT MENU
➜ ➜
➜ ➜
until E XIT
to enable or disable
➜
➜
LANGUAGE allows the choice of English or French language.
OR
until LANGUAGE
➜
until E XIT MENU
➜
➜ ➜
➜ ➜
to English or French
until E XIT
➜
➜
of options.
until BUTTON
➜
➜ ➜
One Normal Wash, One Heavy Wash, Run Delime Cycle, or Energy Saver
until E XIT MENU
➜
➜
until E XIT
➜
EXIT MENU TO MAIN MANAGER MENU
until E XIT MENU
➜
➜
to: Clean Sump, One Light Wash,
➜ OR
DELIME NOW allows for a single delime cycle to be run from the menu at anytime.
Note: this operation takes 20-45 minutes depending on conditions.
BUTTON allows the customization of the button to be used for a variety
until DELIME NOW
➜
➜ ➜
to YES or NO
➜
(this will exit menu)
➜
– 20 –
PARAMETERS MENU TABLE
Parameter
Name
Detergent
Pump
Rinse Aid
Pump
Wash Cycle
Low Temp
Alarms
Wash Arm
Alert
Delime
Temperature
Units
Potable Rinse
Base
Models
(LXeC,
LXeH)
✓ ✓
✓ ✓
LXeH
Only
✓ ✓
✓ ✓
Advansys
Models
(LXePR,
LXeR)
✓
LXeR Only
✓
LXePR
Only
Description
Enables or disables the detergent
pump.
Enables or disables the rinse aid pump.
Sets the cycle duration.
Enables or disables a visual alert on
the display that indicates that the Final
Rinse water temperature is below the
required minimum of 180°F (82°C).
When enabled, a message will display
notifying the user of this condition after
three consecutive cycles do not reach
the required nal rinse temperature.
However, machine operation will not
change and ware will continue to wash
as expected. After the temperature
increases past the minimum, the
message stops. When disabled, there
will be no extra message indicating a
low temperature event; however, the
temperature display will still show the
current Final Rinse water temperature.
Enables Visual Alert, Audio and Visual
Alert, or disables an alert that is displayed when the machine detects a
wash arm that is clogged or blocked
such that ware wash results could be
affected.
Enables or disables the alert to delime
option.
Sets the display units to either Fahrenheit or Celcius.
On LXePR machines, this setting enables or disables the PuriRinse option
that sprays fresh water after the sanitization cycle to remove the sanitizer from
the ware.
Possible
Values
Disabled or
Enabled
Disabled or
Enabled
Light, Normal,
or Heavy
Disabled or
Enabled
Disabled,
Visual, or
Audio and
Visual
Disabled or
Enabled
Fahrenheit or
Celcius
Disabled or
Enabled
Default
Value
Enabled
Enabled
Normal
Disabled
Audio and
Visual
Enabled
Fahrenheit
Enabled
– 21 –
Parameter
Name
Dirty Water
Indicator
Energy Saver
Mode
Add Chemical
Alert
End Cycle
Audio Alert
Language
Base
Models
(LXeC,
LXeH)
✓ ✓
✓ ✓
✓ ✓
Advansys
Models
(LXePR,
LXeR)
✓
✓
Description
On Advansys machines, this setting
allows for a reminder for the operator
to be notied that 20, 40, or 60 cycles
have passed and a special water refresh
cycle is recommended. This cycle will
drain a portion of the wash water and
refresh it with fresh hot water.
On Advansys machines, this setting will
control when the machine will turn the
heaters off in order to save energy when
not in use.
Enables or disables an audible alert if
chemical is not being detected.
Enables or disables an audible alert at
the end of a cycle.
Sets the language on the display to
either English or French.
Possible
Values
Disabled,
20, 40, or 60
cycles
Disabled, 1, 2,
or 3 hours
Disabled,
Visual, or
Audio and
Visual
Disabled or
Enabled
English (US)
or French
(Canada)
Default
Value
40 Cycles
2 hours
Audio and
Visual
Disabled
English (US)
Advansys
Button
Exit Menu
✓
✓ ✓
Choose function for Advansys button.
Press ENT to exit the Parameters Menu
and return to the Manager Menu. Any
settings that were changed are saved.
1. Not
programmed
2. Clean the
sump
3. One light
wash
4. One normal
wash
5. One heavy
wash
6. Run delime
cycle
7. Energy
saver
Not
Programmed
From
Factory
– 22 –
OPERATION
Items such as pewter, aluminum and silver will be attacked by sodium hypochlorite (bleach).
Therefore, chemical-sanitizing dishwashers should not be used to wash such items.
If your dishwasher is a chemical-sanitizing model, frequently check the sanitizer bottle to make sure
there is a sufcient chemical supply.
BEFORE FIRST USE
This machine must be cleaned after installation and before being put into operation. (See Cleaning.)
CONTROLS
LXeC and LXeH
Fig. 5
LXePR and LXeR
Fig. 6
– 23 –
OPERATING THE LXe DISHWASHER
DO THIS DISPLAY SHOWS REMARKS
Press ON. Model number. Dishwasher performs self-check.
This takes 5 seconds.
FILL and ll icon lit; sump temperature displayed when ma-
chine is lling.
Dishwasher lls with water.
When lled, pump turns on for
10 seconds.
WARMING UP and warming up
icon are displayed when booster
is preheating on models LXeH
and LXeR. This preheat could
take up to 15 minutes.
During ll, sump temperature is
displayed.
Open door; slide rack of dishes
into dishwasher. Close door.
Press WASH. WASH and wash icon lit; sump
READY lit and sump temperature displayed.
temperature displayed during
wash cycle.
RINSE and rinse icon lit; rinse
temperature displayed during
rinse cycle.
If door is opened during ll
cycle, ll will stop. After door is
closed, the process continues
where it stopped.
When lled, machine will maintain an idle state. Heat is maintained in both sump and/or
booster.
Detergent will be added automatically during wash cycle.
Rinse Aid and Sanitizer will
be added automatically during
rinse cycle. (NOTE: Sanitizer
only used on LXeC and LXePR
models.)
Machine initiates a wash and
rinse cycle.
If door is opened during wash,
rinse, or drain cycle, cycle will
continue at point where door
was opened upon closing door.
When cycle is complete, reload
machine for next wash/rinse
cycle; or, if not in use, machine
will maintain idle mode.
At the end of the day, press
POWER.
READY lit and sump temperature displayed.
DRAIN and SHUTDOWN IN
PROGRESS are displayed; then
the display shuts down.
– 24 –
If POWER is pressed during
cycle, machine will drain and
shut down.
Machine will drain and shut
down if the four hour idle shutdown time is reached.
When POWER key is pressed,
machine will drain and shut
down.
DIAGNOSTIC/ERROR MESSAGES
Error Display Description
Door Open Door Open
WASH ARM ALERT
Clogged/
Blocked Wash
Arm
Low Rinse
Temperature
Low Rinse
Temperature
(10 In A Row)
Wash
Thermistor
Error
Booster
Thermistor
Error
Final Rinse
Thermistor
Error
- Remove & clean arm
- Check nozzles
- Replace arm
- Close door
LOW RINSE TEMP
LOW RINSE TEMP
Check Water Input
WASH TEMP SENSOR
Service Required
(Service Phone Number)
OPEN or SHORT
BOOSTER TEMP SENSOR
Service Required
(Service Phone Number)
OPEN or SHORT
RINSE TEMP SENSOR
Service Required
(Service Phone Number)
OPEN or SHORT
Displayed when the door of the machine
is opened.
Displayed if wash arm is blocked or
clogged which would result in poor wash
results. Follow on-screen instructions.
After two consecutive low temperatures,
if problem occurs on the third
consecutive cycle, the error will display.
The machine will continue to run cycles.
If the Low Rinse Temperature error
occurs for 10 consecutive cycles, the
error will change. The machine will
continue to run cycles.
Error displayed if wash temperature
probe is out of range. The machine will
continue to run cycles.
Error displayed if booster temperature
probe is out of range. The machine will
continue to run cycles. (LXeH & LXeR
models only.)
Error displayed if nal rinse temperature
probe is out of range. The machine will
continue to run cycles.
Low Water In
Booster (Time
Out Within Any
Cycle)
Drain Error
Sump Level
Error
Booster Level
Error
FILL ERROR
Service Required
(Service Phone Number)
DRAIN ERROR
Service Required
(Service Phone Number)
SUMP LEVEL SENSOR
Service Required
(Service Phone Number)
OPEN or SHORT
BOOSTER LEVEL SENSOR
Service Required
(Service Phone Number)
OPEN or SHORT
Error displayed if the unit times out
before the unit is completely lled. The
machine will not operate and will only
allow power down.
Error displayed if the water level in the
unit will not come up. The machine will
not operate and will only allow power
down.
Error displayed if sump pressure switch
is out of range. The machine will not
operate and will only allow power down.
Error displayed if booster pressure switch
is out of range. The machine will not
operate and will only allow power down.
– 25 –
WASH/RINSE CYCLE TIMES (LXeC) WASH/RINSE CYCLE TIMES (LXeH)
C OARSE STRAINER
FINE STRAINER
Wash 85 Seconds Wash 85 Seconds*
Drain 18 Seconds Max Drain 18 Seconds Max
Rinse 10 Seconds Rinse 10 Seconds
Dwell 5 Seconds
* Maximum wash time may vary, depending on operation voltage and incoming water temperature
for 70°F rise on LXeH machines.
WASH/RINSE CYCLE TIMES (LXePR) WASH/RINSE CYCLE TIMES (LXeR)
Wash 85 Seconds ** Wash 85 Seconds *, **
Drain 18 Seconds Max Drain 18 Seconds Max
Rinse 8 Seconds Rinse 8 Seconds
Dwell 10 Seconds Dwell 5 Seconds
PuriRinse 7 Seconds Condense 105 Seconds Max
* Maximum wash time may vary, depending on operation voltage and incoming water temperature
for 70°F rise on LXeR machines.
** Wash cycle time can be adjusted to a 56, 85, or 215 second cycle.
PREPARATION
Make sure the coarse (Fig. 7) and ne (Fig. 8) strainers are in place and free of debris. Ensure that the
coarse strainer is installed with the handle towards the front of the machine. Check both wash arms
and rinse arms to make sure they spin freely and are not clogged.
Fig. 7 Fig. 8
– 26 –
Dishes must be scraped and/or rinsed to remove food particles and other debris. Never use steel wool
on ware to be loaded into the dishwasher. Place dishes in a rack. Do not stack dishes on top of each
other as water must have free access to all sides of every dish. Stand plates edgewise in a peg-type
rack (Fig. 9). Cups, glasses and bowls should lay upside down in an open or compartment-type rack
(Fig. 9). Silverware and other small pieces should lay loosely on the bottom of a at-bottom rack. Do not
allow foreign objects to enter the unit, especially metallic contaminants such as staples and paper clips.
Check to see if any detergent, rinse aid or sanitizer chemicals need to be replenished. Use only
commercial-type detergents, as prescribed by your chemical professional.
Fig. 9
DO'S AND DON'TS FOR YOUR NEW HOBART DISHWASHER
DO assure proper water hardness.
DO prescrape dishes thoroughly.
DO use only detergents recommended by your chemical professional.
DO, at the end of the day, thoroughly clean the machine, rinse and dry. (Leave door open.)
DO use only products formulated to be safe on stainless steel.
DO NOT use detergents formulated for residential dishwashers.
DO NOT allow food soil to accumulate on the tank bottom.
DO NOT exceed chemical manufacturer's recommended concentrations for detergent, sanitizer, rinse
aid or lime scale remover.
DO NOT use steel wool to clean ware or warewasher surface.
DO NOT allow foreign objects to enter the unit, especially metallic contaminants.
– 27 –
CLEANING
This machine must be cleaned at least once each working day. Use only products formulated to be safe
on stainless steel.
1. Press POWER. The machine will drain. When the display is no longer lit, open the door and remove
any debris from the bottom of the tank. Do not allow food soil to accumulate on the tank bottom.
2. On LXeC and LXeH models, remove the lower rinse arm by unscrewing the thumb nut (Fig. 10).
On LXePR and LXeR models, remove the lower rinse arm by pressing in on the buttons located
on the sides of the center hub and pull off (Fig. 11). Remove the lower wash arm by pulling the
arm off the shaft. Remove the upper rinse and wash arms in the same manner. Remove the coarse
and ne strainers (see Figs. 7 and 8). Thoroughly clean these items in a sink. Remove debris from
wash/rinse arm nozzles.
RINSE ARM
THUMB NUT
(LXeC & LXeH)
Fig. 10 Fig. 11
CENTER HUB
BUTTONS
(LXePR & LXeR)
3. With a damp cloth, wipe the interior of the machine. DO NOT use steel wool. Wipe the exterior
of the machine. Remove any remaining debris with a mild cleanser formulated for stainless steel
and a soft cloth or brush.
4. Replace the ne and coarse strainers. Reinstall the lower wash arm by pushing it down on the
shaft. On LXeC and LXeH models, place the lower rinse arm on the shaft and securely tighten
the thumb nut. On LXePR and LXeR models, press in on the buttons located on the sides of the
center hub, place the rinse arm on the shaft, and release. Spin arms to make sure they spin freely.
Repeat this procedure with the upper wash and rinse arms.
5. Use a soft, damp cloth or sponge and mild cleanser to clean the control keypad and display. DO
NOT use abrasive or harsh cleaners or scouring pads.
6. Leave the door ajar overnight to allow the interior to air out and dry. The door design allows for
the door to remain partially open and can be used to vent the machine at the end of the day.
– 28 –
MAINTENANCE
Maintenance and regular care is important to maintain optimal results with your Hobart warewasher.
DELIMING
Deliming solution, rinse agents or any other kind of acid must not come in contact
with bleach or rinse solution containing bleach used in chemical-sanitizing machines. Mixing
may cause hazardous gas to form. This entire procedure must be followed step by step for safe
and satisfactory results.
Do not allow the deliming agent to remain in the machine longer than recommended by the
deliming agent manufacturer.
DELIME THE DISHWASHER ON A REGULAR BASIS AS REQUIRED. The regularity will depend on
mineral content of the supply water. Deliming should be done when you can see clear signs of lime
deposits (a white, chalky substance) on the inside walls and on the wash arms. All LXe models are
equipped with an automatic delime cycle reminder. It is recommended that deliming be done when
DELIME RECOMMENDED is lit. LXePR and LXeR models are equipped with an internal delime pump
which will automatically pump the required amount of deliming agent into the unit.
If deliming is necessary, a deliming agent (such as Lime-A-Way ® or LSR ®) should be used for best results.
After the preprogrammed number of cycles has expired, the control will indicate the delime request
by displaying DELIME RECOMMENDED and will prompt ‘Would you like to delime now?’. You must
enter ‘Yes’ or ‘No’ to proceed with a delime cycle or to continue with normal machine operation. If ‘No’
is selected, the machine will continue to notify the operator at each start-up and power down until the
delime cycle is completed. To delime the unit:
1. Press the MENU/DOWN Arrow key until the ‘>’ symbol is shown to the left of ‘Yes’ and press the
ENT key.
2. Remove dish rack from machine.
3. Remove strainers from machine and clean. Replace strainers and close door.
4. On LXePR and LXeR models, ensure delimer chemical container is not empty. Be sure to push
the delivery tube standpipe completely to the bottom of the container. Check to make sure there
are no obstructions or kinks in the delivery tube.
5. Press ENT key to enter the delime mode. The machine will drain and rell with fresh water.
6. On LXeC and LXeH models, the display will prompt ‘ADD DELIME AGENT’ once the ll cycle
has completed. Open the door and add deliming agent. (Carefully follow supplier’s instructions.)
The sump holds approximately 3 gallons of water. On LXePR and LXeR models, the unit will
automatically pump in the required amount of deliming agent during the ll cycle.
7. On LXeC and LXeH models, after the deliming agent has been added, close the door. Press the
ENT key to continue the cycle. The machine will enter the wash mode for 10 minutes, then will
begin two rinse and drain operations. On LXePR and LXeR models, the unit will automatically
enter the wash mode for 10 minutes, then will begin two rinse and drain operations after the ll
cycle is complete.
8. After the deliming operation is completed, power to the control will be turned off.
9. Inspect the interior of the machine for lime deposits. If necessary, another delime cycle can be
initiated by entering the Manager Programming Mode.
LUBRICATION
The pump motor has permanently sealed bearings and requires no lubrication.
– 29 –
TROUBLESHOOTING
This section outlines various symptoms and possible causes that may be encountered in the event of
abnormal machine operation. If symptoms persist after possible causes have been checked, service
may be required.
Symptom Possible Causes
No machine operation (no display). 1. Machine OFF - turn machine ON.
2. Blown fuse or circuit breaker off at power supply.
3. Cord not plugged in (corded models only)
No machine operation (with display). 1. Display: "DOOR OPEN" - open and close door. If
problem persists, contact your local Hobart Service
Ofce.
2. See "Machine will not ll or will not ll high enough".
Dishes not clean. 1. Strainers clogged causing inadequate water supply
to pump - clean according to instructions. (See
CLEANING.)
2. Obstruction in wash arm(s) or wash arms will
not turn - clean according to instructions. (See
CLEANING.)
3. Wash and/or rinse arms will not turn - check that
they spin freely.
4. Detergent dispenser may be clogged.
5. Soil quantity - scrape dishes before cycle.
6. Improper rack loading. (See PREPARATION.)
7. Low water - check water supply.
8. Water temperature too low - note wash temperature
on display during WASH; should be above 120°F for
chemical sanitizing machines and above 150°F for
high temperature machines.
9. Incoming water supply turned off.
Spotting of silverware, glasses, or
dishes.
Chemicals not feeding. 1. Low on chemicals - check levels.
Food soils remain in dishwasher.
Appearance of rust in machine. 1. Ensure steel wool is not used to clean machine.
1. Improperly loaded racks.
2. Water temperature too low.
3. Improper type or concentration of detergent contact your chemical representative.
4. Hard water - install a water softener; use a rinse
agent.
5. Insufcient ll - check water supply.
2. Air leak at feeder hose connections - check insertion
of quick connect ttings and wire ties at tube to tube
connections.
3. Tubes kinked - check for smooth bends.
Follow daily cleaning instructions. (See CLEANING.)
2. May be due to high iron content in water supply.
– 30 –
Symptom Possible Causes
Unexpected results on
dishes.
Low temperature readings. 1. Low water supply temperature - make sure it meets
1. Etching - usually caused by any combination of high
temperatures, soft water, soft glass, or high alkaline
washing solutions.
2. Tarnishing - avoid washing silver, silver plates, and
pewter in chemical sanitizing machines.
3. Pitting - stainless steel may pit with lengthy contact
of foods containing salt, fruit juices, vinegar, etc.
Wash immediately.
4. Black or gray marks - may have been rubbed with
aluminum.
5. Brown stains - may be due to high iron content in
water supply.
6. Chipping - improper loading or ware is too delicate.
7. Fading of china patterns - usually due to high water
temperature and strong detergent. Check that china
is dishwasher compatible.
8. Wooden ware damage - avoid washing in dishwasher.
9. Rust on cast iron - seasoning is lost in dishwasher.
Avoid washing in dishwasher.
10. Plastic ware distortion - high temperatures. Check
plastic ware's instructions.
the recommended minimum temperature.
2. Rapid cycle use - if incoming water temperature is
low and cycle use rate is high, the hot water supply
may be insufcient to meet the demand.
3. Heavy ware load cools wash water - do not overload
racks.
4. Booster heater or sump heater set low - contact your
local Hobart Service Ofce.
Machine will not ll or will not
ll high enough.
Machine lls too high or
leaks from door.
Machine will not drain. 1. Drain pipes restricted - check dishwasher drain line
Some water occasionally drips out
of rinse arms (high temperature
dishwashers only).
1. Low water pressure - check for clogged hose
strainer; ensure the site water pressure meets
minimum ow pressures.
2. No water ow - main water supply valves may not be
working.
1. Machine not level. (see LEVELING.)
2. Fill solenoid valve leaking - power the dishwasher
OFF; if water continues to ow into the machine,
contact your local Hobart Service Ofce.
for kinks; ensure proper drain rate is allowed from
plumbing.
2. Power machine OFF. Wait several seconds and
then power back ON. Repeat this procedure twice
if necessary. If problem persists, contact your local
Hobart Service Ofce.
This is normal due to expansion of water being heated in
the booster tank.
– 31 –
NOTES
FORM 38404 Rev. A (March 2013) PRINTED in U.S.A.
– 32 –
Loading...