Buffalo DW319 User manual

Dishwasher
Instruction manual
Model:
DW319

Safety Tips
Position on a flat, stable surface.
A service agent/qualified technician should carry out installation and
any repairs if required. Do not remove any components on this
product.
Consult Local and National Standards to comply with the following:
•Health and Safety at Work Legislation
•BS EN Codes of Practice
•Fire Precautions
•IEE Wiring Regulations
•Building Regulations
DO NOT immerse the appliance in water.
Always switch off and disconnect the power supply to the appliance
when not in use.
Not suitable for outdoor use.
Keep all packaging away from children. Dispose of the packaging in
accordance to the regulations of local authorities.
Children should be supervised to ensure they do not play with, or
operate the Dishwasher
The function of this Dishwasher is the washing of Dishes and similar
ONLY.
Do not use cleaning agents that contain Chlorine, Bleach or
Hypochlorite
Only use commercial grade detergents and rinse aids in your
Dishwasher
Wear the correct personal protective equipment when handling
chemicals and observe all safety notes
Damage to the Dishwasher caused by lime scale or poor water quality
will NOT be covered by the manufacturers warranty –fitting of a water
softener is recommended
The installer and user are responsible for ensuring the installation and
operation of this Dishwasher
Ensure the base of the unit is never submerged or standing in water
when operating the Dishwasher
Do not use electrical extension lead(s) to supply power to your
Dishwasher
If the power cord is damaged, it must be replaced by a BUFFALO agent
or a recommended qualified technician in order to avoid a hazard.
This appliance can be used by children aged from 8 years and persons
with reduced physical, sensory or mental capabilities or lack of
experience and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe way and if they
understand the hazards involved. Children shall not play with the
appliance. Cleaning and user maintenance shall not be made by
children without supervision.

Introduction
Please take a few moments to carefully read through this manual. Correct maintenance and
operation of this machine will provide the best possible performance from your BUFFALO
product.
Pack Contents
The following is included:
BUFFALO Dishwasher
2 x Washbaskets
1 x Cutlery Container
Water Inlet Hose
Water Drain Hose
Instruction Manual
BUFFALO prides itself on quality and service, ensuring that at the time of packaging the
contents are supplied fully functional and free of damage. Should you find any damage as a
result of transit, please contact your BUFFALO dealer immediately
Installation
Levelling
Install the leveling feet, following the below instructions.

Chemical Feeder Tubes
Before placing the Dishwasher in its permanent position extend the chemicals feeder tubes
making sure not to kink.
Chemical Feeder Tubes
R: Rinse Aid –Blue Pipe
D: Detergent –Clear Pipe
Note - Do not add extensions to chemical feeder tubes
Note - Chemical supply containers must be placed as close to the machine as possible and
must NOT be elevated
Note - Reposition the chemical tubing at the back of the machine, ensuring there are no
kinks, before placing the machine in its permanent position

Plumbing Connection
Water Connection
Note - Plumbing connections must be made in such way that will allow the machine to be
removed for service and cleaning.
1. Connect the hose supplied with the machine to the inlet at the rear of the machine and
the ¾” NPT fitting on the water supply line.
2. Check the water inlet pressure is between 2-4 bar (29-58 psi) (not static). If it is more a
PRV (pressure reducing valve) must be installed. If it is less a booster pump will be
required
Drain Connection
1. Connect the drain hose supplied to the main drainage pipe work.

Chemical Feeders Priming
Your Buffalo Dishwasher has a detergent pump and a rinse-aid pump for use with containers
of NON-FOAMING liquid detergent.
1. Insert the hoses of the pumps in the correct chemical container (clear tube for
detergent, blue tube for rinse aid).
2. Ensure both of the hoses are at the bottom of the containers of the chemicals.
Note - The chemicals to be used should be suitable for Dishwashers. The detergent shall be
the No Foam type, suitable for Dishwashing machines.
Note - We recommend that you use detergent and rinse aid from the same manufacturer.
Jantex Dishwash detergent (GM981) & Jantex Dishwash rinse aid (CF977) are recommended.
Note - When the machine is installed from new or when the containers are allowed to run
dry, the full priming takes place after 8-10 washing-rinsing cycles.

Detergent and Rinse Aid Pump Adjustment
1. Open the stainless steel front cover (remove 2x screws).
2. The pumps are ready for adjustment.
Detergent Pump
Detergent amount required is dependent on soil and water hardness. Dosage can be
regulated by a screw above and on the right of the glass cover. The regulation can be from 0
lt/hour to 3.0 lt/hour. Adjust the quantity by regulating the dosing. Turning the adjustment
screw counterclockwise, the flow is reduced (-), turning it clockwise the flow is increased (+).
The detergent pump is factory set at the maximum (3.0 lt/hr).
Rinse Aid Pump
Rinse Aid amount required is dependent on water hardness. Dosage can be regulated by a
screw above and on the right of the glass cover. The regulation can be from 0 lt/hour to 0.7
lt/hour. The rinse aid pump suctions 0.7 ml per rotation of the rotary mechanism. Adjust the
quantity by regulating the dosing. Turning the adjustment screw counterclockwise, the flow is
reduced (-), turning it clockwise the flow is increased (+). The rinse-aid pump is factory set
at the maximum (0.7 lt/hr).

Operation
Control Panel –DW319
Starting the Washing Procedure
1. Check that there are sufficient detergents in the chemical containers and that the drain
and overflow pipe has been replaced in the correct position if it was removed for
cleaning.
2. Close the door and turn on the Dishwasher by using the on/off button.
3. The Dishwasher will fill automatically and both the tank and booster will begin to heat.
The tank and boiler indicator lights will illuminate showing that the water is being heated.
Note - The full heating process is finished when warming light is off.
Loading the Basket
Load dishes into the basket ensuring all debris is removed.
Open the door and place basket in the machine.
Note –Empty debris dishes into sink/receptacle. DO NOT EMPTY IN THE MACHINE.
Starting a Wash Cycle
1. Close the door. Ensure the door is closed properly. The Dishwasher will not start if the
door is not closed
2. Press the start button to initiate the washing cycle. The program light indicator will
illuminate while washing cycle is in progress
3. When the full washing cycle finishes, the program light indicator turns off and you can
remove the basket.
Note - Pay attention when removing the basket after the washing cycle as it may be hot!
Note - Let the dishes dry out of the glasswasher

Shutting Down and Draining
1. Turn off the power switch (on/off button)
2. Remove the overflow pipe and let the machine drain
Cleaning the Filter
1. With the machine fully empty, rotate the suction-pump filter anti-clockwise to remove
2. Clean the filter under running water
3. Replace the filter and secure by rotating clockwise
Note - Allow to cool before removing filter
Note - Do not run a washing program without filter securely in place
Cleaning the Wash Arm
1. Rotate the retaining nut anti-clockwise to release the wash arm
2. Clean with warm soapy water
3. Reposition the wash arm and tighten the nut clockwise

Troubleshooting
PROBLEM
CAUSE
SOLUTION
The machine does not
turn on
Connection interruption
Check the connection and
the safety fuse of the
cabling
The moulded plug or the wires are
damaged
Disconnect the machine
from the power supply
and contact your
authorized local dealer or
the manufacturer. The
machine must be repaired
by qualified personnel
The machine's door is open
Close the door in order to
activate the door switch
There is no water supply to the
water input valve
Check the plumbing
network of your facilities
The filter of the water input valve
is blocked
Clean the valve's filter
The on/off switch doesn’t function
Contact your authorized
local dealer or the
manufacturer
The machine is not
filling with water
The machine's door is open
Close the door in order to
activate the door switch
The filter of the water input valve
is blocked
Clean the valve's filter
Problems with the plumbing
Contact your water
provider or your plumber
The machine is not
starting the washing-
rinsing cycle
The machine's door is open
Close the door in order to
activate the door switch
The on/off switch has not been
activated
Press the button of the
on/off switch
The start switch was pressed
momentarily
Press the button of the
start switch continuously
in order to start the
washing-rinsing cycle
The water of the
machine is not warming
(the warming indicator
is not going out and
staying continuously
on)
The thermofuse (boiler or tank) of
the machine has broken the circuit
of the heating
Press the button of the
thermofuse (boiler or
tank) in order to reset it

PROBLEM
CAUSE
SOLUTION
The water of the
machine is not warming
(the warming indicator
is not lighting up)
The machine has not stopped the
filling of the water
Wait for the filling of the
water to stop. Check that
the overflow pipe is at the
correct position to avoid
constant filling
The thermostats (boiler or tank)
are set at a lower temperature
than required
Increase the thermostat
temperature
The washing pump is
very noisy
The filter of the input of the pump
is blocked
Unscrew the filter
retaining nut-remove the
filter and wash it with
clean water. Carefully
check for blockages
caused by glass fragments
The washing arms or the sprayers
are blocked
Unscrew the sprayers or
remove the arms from the
cross and wash them
Something has interrupted the
rotation of the cross or the arms
Remove the basket and
make sure that everything
is at the proper position.
Also check the arms or the
cross if they are broken
down
The rinsing is
insufficient
The inlet pressure of the
installation is under 1.5 bar
Check your water supply-
check your water pipe
network. A booster pump
may be fitted.
There is no water supply to the
water input valve
Check the plumbing
network of your facilities
The rinsing sprayers are blocked
Unscrew the sprayers or
remove the arms from the
cross and wash them
Something has interrupted the
rotation of the cross or the arms
Remove the basket and
make sure that everything
is at the proper position.
Also check the arms or the
cross if they are broken
down

PROBLEM
CAUSE
SOLUTION
The finish washing
result is inadequate
The suction of the liquid detergent-
rinse aid doesn’t take place
according to the recommendation
of the manufacturer
Check both the peristaltic
pumps and regulate them
according the
recommendation of the
manufacturer of the
machine and the
manufacturer of the
detergent-rinse aid
The hardness of the water is
higher than 9 degree clark
Communicate with your
water provider to learn
about the hardness of the
water of your area. A
water softener may be
fitted
There is too much foam
The machine isn’t warming
sufficiently
Check if the warming
indication has gone out or
is still on
Foaming detergent been used
always use non-foaming
detergent for ware
washing machines
There is incorrect regulations to
the peristaltic pumps
Regulate them according
the recommendation of
the manufacturer of the
machine and the
manufacturer of the
detergent-rinse aid

PROBLEM
CAUSE
SOLUTION
The dishwasher does
not drain
The drain and overflow valve is
still at the drain base
Remove the drain and
overflow valve
Something has blocked the
draining pipe
Check the draining pipe for
folds or for blockages
The filter of the drain is blocked
(for machines with draining pump)
Clean the drain's filter
The inlet of the drain is higher
than the drain of the machine
Reposition the machine or
install drain pump
The machine's washing-
rinsing cycle is
interrupted
The drain and overflow valve is not
properly positioned or it is set
upside down
Place the overflow valve at
the right position
There is high temperature inside
the machine's tank and water has
evaporated
Check the tank's
temperature and regulate
the thermostats
accordingly
The tank has not been emptied
from the previous day
Check carefully the tank at
the end of the day
The machines door
leaks
The washing or the rinsing
sprayers are blocked
Clean the sprayers
There is too much foam in the tank
Check the detergent is
non-foaming and that
dosage is set correctly
Something has interrupted the
rotation of the cross or the arms
Remove the basket and
make sure that everything
is at the proper position.
Also check the arms or the
cross if they are broken
down
The level of the tank's water is
higher than the right one
Check the overflow drain
pipe

Technical Specifications
Model
Voltage
Power
Pressure
Dimensions
h x w x d mm
Weight
DW319
220-240V
50Hz
6600W
2-4 Bar
(29-58 psi)
570 x 600 x 830
55Kgs
Electrical Wiring
Your Dishwasher must be installed by a qualified electrician
DW319 is supplied wired for installation to a single
phase 230v 30A power supply.
DW319 can also be rewired by a qualified electrician to work on a single phase 230v 13A
supply (Power reduced to 2600w) or three phase 400v 12.2A power supply.

Converting Single phase 30A to Single Phase 13A

Converting Single phase 30A to Three Phase 12.2A
For this conversion you will need the 2 x Cable Bridge (Grey) and 1 x Power
supply cable 5x2.5mm supplied.