Matrix MFU251 Reference manual

Under-counter fridge
with icebox
Manual for installation,
use and maintenance
MFU251
parts +1 year labour
year
guarantee
www.matrixappliances.co.uk

2
Contents:
3 Important information
5 Important safety and usage instructions
6 Guidance before first use
7 General use of the fridge
8 General use of the freezer (icebox)
9 Storage and use
10 Controls
11 Care and cleaning
12 Defrosting the fridge
12 Defrosting the icebox
13 Troubleshooting
15 Installation and ventilation
16 Mounting the fascia doors
18 Reversing the fridge door
19 Reversing the icebox door
20 Electrical information
22 Changing the lamp bulb
23 Energy Efficiency Information
IMPORTANT: Please read the user instructions carefully before
using the appliance for the first time and before installing it.
Failure to install the fridge, or to have it installed, as per the user
manual could invalidate the warranty. Any service calls relating
to misuse or incorrect installation could incur a service charge.

3
Important
The CDA Group Ltd cannot be held responsible for injuries or losses
caused by incorrect use or installation of this product. Please note
that CDA reserve the right to invalidate the guarantee supplied with
this product following incorrect installation or misuse of the appliance
or use in a commercial environment.
This appliance is not designed to be used by people (including
children) with reduced physical, sensorial or mental capacity, or
who lack experience or knowledge about it, unless they have had
supervision or instructions on how to use the appliance by someone
who is responsible for their safety.
Under no circumstances should any external covers be removed for
servicing or maintenance except by suitably qualified personnel.
Appliance information:
Please enter the details on the appliance rating plate below for
reference, to assist CDA Customer Care in the event of a fault
with your appliance and to register your appliance for guarantee
purposes.
Appliance Model
Serial Number
EU Declarations of Conformity
This appliance has been manufactured to the strictest standards and
complies with all applicable legislation, including Electrical safety (LVD)
2014/35/EU and Electromagnetic interference (EMC) 2014/30/EU.
Appliance Model
Serial Number

4
Parts intended to come into contact with food conform to 1935/2004/
EC.
IMPORTANT INFORMATION FOR CORRECT DISPOSAL OF THE
PRODUCT IN ACCORDANCE WITH EU DIRECTIVE 2012/19/EU.
At the end of its working life, the product must not be disposed of as
urban waste. The refrigeration system contains insulating gases and
refrigerants, which require specialised waste disposal. The valuable
materials contained in this appliance can be recycle. It must be
taken to a special local authority differentiated waste collection
centre or to a dealer providing this service.
Before disposing of an old appliance, remove the door seals, latch or
bolt lock to avoid the risk of child entrapment.
Disposing of a household appliance separately avoids possible
negative consequences for the environment and health. It also
enables the constituent materials to be recovered, saving both
energy and resources. As a reminder of the need to dispose of
household appliances separately, the product is marked with a
crossed-out wheeled dustbin.

5
Important
Never store inflammable or explosive items and strong corrosive
acids or alkalis in the appliance.
This is a household appliance, which is produced in accordance
with the national standard. It is intended for food storage only, not for
storage of blood, medicine and biological products.
To prevent risk of fire, keep the appliance away from petrol or any
other inflammables.
To prevent risk of electromagnetic interference or other accidents,
do not place a microwave oven on top of the refrigerator or use any
electric appliance inside the refrigerator.
Do not allow children to play with or near the appliance.
The internal surfaces of the fridge compartment may be very cold
when the appliance is running. Avoid touching, if possible, the
surfaces especially when hands are wet.
Do not splash water onto the appliance. Keep it away from places of
high humidity that may have adverse effect on the electric insulation
performance.
This appliance is designed to be used in ambient temperatures
between 10 and 32˚C. Use outside of this range may cause the
appliance to fail.

6
Before first use
You must allow the fridge to settle for at least twenty four hours
prior to switching the power on.
It is recommended that you clean the interior of the appliance prior
to first use, using a solution of bicarbonate of soda and warm water
and then thoroughly drying the interior.
The fridge may have an odour to it at first use. This will disappear as
the appliance cools.
When first switching the appliance on it is advisable to set the fridge
to setting 3 on the thermostat dial and leaving the fridge to settle for
24 hours before adusting the temperature to the preferred setting.
Please note:
The appliance will work continuously until it comes down to the
correct temperature.
If the appliance is switched off, you should allow five minutes
before switching it on again to prevent unnecessary damage to the
compressor.
Never store inflammable or explosive items and strong corrosive
acids or alkalis in the appliance.
This fridge cools your food by making the inside back of the cavity
cold. It is normal for frost to build up on this surface; it then dissipates
and drains through a small drain at the bottom, where it evaporates
harmlessly. The presence of frosting at the back is not a malfunction
of the fridge.
The presence of some frosting within the icebox of the appliance is
not a malfunction of the icebox.

7
Use
Fridge
• Never put liquids in the refrigerator uncovered.
• Never put hot foods in the refrigerator. Warm food should be
allowed to cool to room temperature before being put into the
refrigerator.
• Nothing should rest against the rear wall of the refrigerator, as this
will cause frost and possible condensation problems which will be
difficult to remove.
• Make sure food is clean and any extra water is wiped away before
putting into the fridge.
• Wrap or cover food before putting into the fridge. This will help
prevent the loss of moisture, keep food fresh and avoid unpleasant
odours.
• Sort foods prior to storing. Any foods to be used soon should be
stored at the front of the shelf to prevent deterioration caused by
the door being open for prolonged periods.
• Do not overfill the fridge. There should be sufficient space between
the foods to allow the cool air to circulate.
• Thawing frozen foods in the fridge compartment will help to keep
the temperature low and save energy.

8
Use
Freezer (icebox)
• The freezer compartment is designed to store only frozen food.
• Never put hot or warm foods in the freezer, allow them to cool fully
before putting them into the freezer.
• Follow the instructions on the food packaging for storage of frozen
food. If no information is provided, foods should not be stored for
more than three months after the purchase date.
• Store food in small packages (ideally less than 0.5kg). This reduces
the freezing time and improves the quality of the food after thawing.
• Wrap food before putting into the freezer. To stop the wrapping
sticking together, ensure it is dry.
• Label the food before freezing with information including type of
food and dates of storage and expiry.
• Once food is thawed, it must not be refrozen unless it has been
completely cooked. Only defrost as much food as is required, to
prevent wastage.
• Bottled or canned drinks should not be stored in the freezer
compartment as they could explode.
• The maximum amount of fresh food that can be frozen within a 24
hour period is approximately 2 kg.
• Do not attempt to freeze more than the maximum amount.

9
Storage and use
The fridge is for short term food storage. Although the temperature
can be maintained between 0-10˚C, extended periods of food
storage is not recommended.
As the cold air circulates within the fridge, the temperature can vary
between the different sections. As such, foods should be stored in
different sections according to type.
1. Butter and eggs
2. Food in jars
3. Drinks & bottles, e.g. milk
4. Frozen foods
5. Cooked food and dairy
6. Fresh meat and fish
7. Fruit and vegetables
(in crisper drawers)
The fridge shelf can be moved according to the storage
requirements within the fridge section. To move the shelf, lift up the
front section and then pull it outwards. To replace, slide the shelf
back into the slot, and lower the front section.
When storing root vegetables with leaves, such as carrots or turnips,
their leaves should be removed. This prevents the leaves from
absorbing nutrients from within the vegetables. The crisper cover
shelf is split to allow easy access to the crispers.
Fig.
fig.1
1
2
3
4
5
6
7 7

10
Controls
Thermostat dial
The controls for this fridge are simple and consist of a single
thermostat dial. To change the temperature, simply turn the dial left
and right to cycle through the available settings. A centrally located
embossed arrowhead indicates the setting. In the above figure, the
setting is ‘0’. The settings available range from 0 to 6 with 0 being the
‘Off’ setting and ‘6’ being the coldest.
After changing the temperature setting, the time taken to achieve
the new temperature will depend on how big the change is from the
previous setting and the fridge’s contents.
Switching On and Off
When the fridge is connected to a power supply it will automatically
switch on unless the thermostat dial is set to ‘0’. To switch the
appliance on, turn the dial to a setting between 1 and 6. To switch
the appliance off, turn the dial to setting ‘0’. If you are turning the
appliance off for a long time, then switch off the mains power supply
also.
Fig. 2

11
Care and cleaning
Always disconnect the appliance
from the power supply before any
cleaning or maintenance.
The fridge should be cleaned using a
solution of bicarbonate of soda and
lukewarm water. Do not use abrasive
products or detergents. After washing,
rinse and dry thoroughly.
Clean the shelves and balconies
separately by hand with a mild solution
of washing up liquid and water. Do not put them in the dishwasher.
The water drain hole at the back of the fridge compartment and
the evaporating tray should be cleaned periodically to prevent the
defrosted water from collecting inside the fridge compartment. The
cleaning rod can be used to clean the drain hole. Always ensure
that the drainage channel, visible at the rear of the appliance, is kept
clear of debris. If you notice that the drain hole/channel is iced over,
use warm (not boiling) water to remove the ice blockage.
If the appliance is not to be used for prolonged periods of time,
unplug and clean the appliance. The door should be left slightly ajar
to prevent the formation of mildew and unpleasant odours.
g. 3
Water Outlet
Cleaning Rod
Fig. 3

12
Defrosting the fridge
The fridge is self-defrosting. Any water created will run out of the
fridge through the channel at the back of the fridge.
It is important to keep the channel clear at all times using the cleaning
tool supplied.
The defrosted water is collected in the evaporating tray at the back
of the appliance and dissipated by evaporation.
If you notice a heavy build up of ice, refer to the troubleshooting
section on ice on page 14.
Defrosting the icebox
An excessive build-up of ice or frost in your icebox will lead to
decreased efficiency and potentially increase your energy bills. We
recommend defrosting the icebox at least once a year or whenever
the ice build-up inside is thicker than ¼of an inch.
The safest way to defrost your icebox is by switching the appliance
off and leaving the doors open until all of the ice has melted away.
Ensure you place old towels on the floor at the base of the appliance
to catch any water that runs from the appliance. We advise against
the use of newspapers to catch the water as the ink can run and ruin
floors or units.
Removing chunks of the ice/frost as it is defrosting will speed up the
process. Do not use any sharp objects or implements, hair driers or
heat guns as these can cause irreversible damage.

13
Troubleshooting
If you have any problems with your appliance, you should check
the troubleshooting prior to calling CDA Customer Care to prevent
unnecessary service calls and potential cost. Contact details are on
page 22 of this manual.
If the appliance is not working, check the following:
• There is power to the appliance.
• The house fuses are intact and the fuse in the plug has not blown.
• The thermostat dial is not set to ‘0’.
• The plug socket is functioning fine. To check this, plug another
electrical appliance in to see if the socket is faulty.
If the appliance is working, but not very well, check the following:
• The appliance is not overloaded.
• The thermostat is set to an appropriate temperature.
• The doors are closing properly.
• The cooling system at the rear of the appliance is clean and free of
dust, and not touching the rear wall.
• There is enough ventilation at the side and rear walls and the lower
vents are neither blocked nor dirty.
If the appliance is noisy, check the following:
• The appliance is level and stable.
• The side and rear walls are clear, and there is nothing resting on
the appliance.
• Note: The cooling gas in the refrigerator may make a slight bubbling
or gurgling noise, even when the compressor is not running.

14
If there is water in the lower part of the refrigerator compartment,
check the following:
• The drain hole in the channel at the back of the compartment is
clear.
• There are no items touching the rear wall of the appliance. If there
are, adjust their position so that they no longer touch it.
• Check that there is some resistance when opening the door of the
appliance. If it opens at the slightest touch it may mean that the
door seal needs to be replaced.
• Check the door seal for any kinks, debris or damage. If you notice
any, and are unable to resolve the issue yourself, contact CDA
Customer Care so that the seal can be replaced.
If ice has formed on the back wall of the fridge:
• It is normal for some ice droplets to form on the back wall of the
fridge. This does not constitute a fault with the appliance.
• Ensure that no items inside the fridge are in contact with the back
wall.
• Check that there is some resistance when opening the door of the
appliance. If it opens at the slightest touch it may mean that the
door seal needs to be replaced.
• Check the door seal for any kinks, debris or damage. If you notice
any, and are unable to resolve the issue yourself, contact CDA
Customer Care so that the seal can be replaced.
If excessive ice has formed in the icebox
• This may mean that warm air is entering the fridge/icebox. Carry
out the above door seal checks for the fridge door and icebox
door. If you have reversed the icebox door hinge side, ensure it is
closing properly.

15
Installation and Ventilation
This appliance must never be installed close to heat sources,
e.g. heating elements, cookers or in damp places.
• To ensure the appliance is level, you should use the height
adjustable feet at the front and rear of the appliance. The feet offer
approximately 50mm of adjustment height-wise.
• The ventilation system at the bottom of the appliance must not be
blocked.
• Fig. 4 shows the installation requirements for your appliance. All
measurements are in millimetres. Failure to install the appliance
correctly can lead to increased running costs, premature failure
and may invalidate the warranty provided with the appliance.
• The metal trim attached to the top of the appliance (not the decor
door fixing bracket pictured in Fig. 7) has a number of holes in it. Use
two or more of these holes to secure the appliance to the worktop.
600
min
550
820-
870
596 550
20-75
818-
870
158- 208
W = 596mm
D = 550mm
H = 818-870mm
Fig. 4

16
Mounting the fascia doors
2
1
g.
Fig. 6 - Fitting the decor door bracket
Remove the white decorative cover (Fig. 5) by lifting it upwards.
Obtain the below measurements:
Dimension B= Measure from
the underside surface of
kitchen unit to the bottom of
fixing bracket.
Dimension C= Measure from
the underside surface of
kitchen unit to the top of next
unit door.
Unscrew and remove the
nuts and washers from the top of the
appliance door to remove the bracket.
Fig. 7 - Fitting the decor door bracket
Subtract C from B and put the
fixing bracket (2) in place using this
measurement for vertical position and
place to the centre for horizontal
position. Secure the fixing bracket (2)
using screws(1).
Fig. 8 - Fitting the decor door
Place the decor door onto the
appliance door by inserting adjustment
bolts into the slots on the fixing bracket.
g. 8
g. 9
g. 7
Fig. 5
Fig. 6
Fig. 7
Fig. 8

17
Locate the washers and screw the nuts
onto the adjustment bolts.
Fig. 9 - Aligning the decor door
Close the door and check the
alignment with the other unit doors.
Adjust the decor door by screwing or
unscrewing the adjustment bolts for
vertical adjustment and by the help of
the slots on the fixing bracket for other
directions. Lock the screws into place as shown in Fig. 9.
Fitting the decor door base fixings
With the appliance door open, locate the metal decor door base
fixing brackets and screw the fixings to the decor door. You may
need to remove and re-fit these brackets depending upon the decor
door used.
Fitting the decorative cover
Re-fit the decorative cover, that you removed in the first step, on to
the decor door fixing bracket.
Check that the whole door assembly operates smoothly and that the
door seal of the refrigerator is still creating a seal (see pages 18-19).
Fig. 9 g.
10
10
8

18
Reversing the fridge door
We recommend you seek the help of another individual to support the
doors whilst performing this operation.
1. Open the door.
2. Carefully prise off the white cover
caps for the side that you wish to
switch the hinges to.
3. Loosen the screws that hold the
hinges to the fridge cabinet and
remove the door.
4. Remove the screws that secure the
hinge to the door.
5. Place the door somewhere
safe where it will not cause or
receive damage.
6. Relocate the hinges to their
opposing corners as shown in Fig.
10.
7. Refit the door to the hinges.
Do not turn the door upside down.
8. Insert the cover caps (3) on the opposite side in the exposed
holes.
9. Ensure that the door seal is correct, as per below and page 18.
Ensuring the door seals correctly:
It is normal for the seal to be compressed after the door has been
reversed. With the door closed, use a hair dryer to expand the seal
and fill the gap between the door and the body of the appliance.
Fig. 10

19
Take care not to use the hair dryer too close to the appliance, which
could damage the seal. A distance of approximately 10cm should be
adequate. When completed, allow the seal and door to cool before
touching them. Once done, the seal should remain in position.
Reversing the icebox door
Remove the lower hinge piece (circled in Fig. 11) by removing the two
screws holding it in place. The door will begin to drop once this has
been removed so
take care. Place the
door somewhere
safe and remove
the lower hinge
piece. Carefully
take out the white
cover caps from the
opposite side. Place these in the old hinge position holes.
Remove the door latch strike plate (Fig. 12) and mirror its position on the
opposite side.
Re-fit the door in the new position,
ensuring that the upper hinge pivot on
the door goes into the recess in the top
of the fridge. Latch the door over the
strike plate and fit the lower hinge piece
in its new position. Test that the icebox
door functions properly and make any necessary adjustments.
Fig. 11 Cover caps
Fig. 12

20
Electrical Information
Warning! This appliance must be earthed.
The mains lead of this appliance has been fitted with a BS 1363A
13Amp fused plug. To change a fuse in this type of plug, follow the
steps below:
1. Remove the fuse cover and fuse.
2. Fit replacement 13A fuse, ASTA approved to BS 1362 type, into the
fuse cover.
3. Replace fuse cover.
Important: Do not use the appliance without the fuse cover in
position.
How to connect an alternative plug
If the fitted plug is not suitable for your socket outlet, then it should be
cut off and disposed of safely to avoid possible shock hazard. A
suitable alternative plug of at least 13 Amp rating to BS 1363 should be
used.
As the colours of the wires in the mains lead of this appliance may not
B
A
Green and Yellow to Earth
Brown to Liv e
13 Amp fuse
Cord Clamp
Blue to Neutral
13 Amp
Fig. 13