DOWNLOAD Sharp R-874 (serv.man7) Service Manual ↓ Size: 2.65 MB | Pages: 72 in PDF or view online for FREE

Model
R-874 (serv.man7)
Pages
72
Size
2.65 MB
Type
PDF
Document
User Manual / Operation Manual
Brand
Device
Home Appliance / Microwave Oven
File
r-874-sm7.pdf
Date

Sharp R-874 (serv.man7) User Manual / Operation Manual ▷ View online

63
Website: http://www.sharp.co.uk/support
Help Line: 08705 274277 (office hours)
CLEANING & MAINTENANCE
OVEN INTERIOR
Clean the microwave oven cavity, after
each use with a mild detergent solution on
a soft cloth, pay special attention to the
waveguide cover.
Take care not to let soapy water drip through the
small holes in the oven walls and the cavity floor
particularly if the turntable and turntable support are
removed. Excess water spillage through these holes
will cause damage to the oven interior. It is
important that the door seals and sealing surfaces
are kept clean at all times, wipe regularly with a
damp cloth.
Heat up your oven regularly by using both grill
elements, refer to page 11.
Remaining food or fat splashed on the oven interior
can cause smoke or a bad smell.
To prevent splashing, cover food wherever possible.
• Keep the waveguide cover clean at all times. 
If you leave grease or fat in the cavity, it may
overheat, smoke or even catch fire when 
next using the oven. Do not remove the
waveguide cover.
• Never use spray cleaners, oven pads or abrasive
scourers as these damage the surface of the oven.
• After Grill, Dual Cook, Convection, Instant Cook,
Express Cook and Meal In One modes, the oven
cavity, door, oven cabinet and accessories will
become very hot. Before cleaning, make sure they
have cooled down.
• Do not allow grease or dirt to build up on
the door seals and adjacent parts as
this may prevent the door from closing
correctly and may cause a leakage of
microwaves. To clean use a mild
detergent  solution on a soft damp cloth.
OUTER CABINET
Wipe the outside cabinet with a mild detergent
solution on a soft cloth. The control panel must be
wiped clean whilst the door is open, therefore
deactivating the oven.
ACCESSORIES
Racks should be washed in a mild washing-up liquid
solution and dried.  They are dishwasher safe.
TURNTABLE
Ensure the turntable is cleaned after every use with
a mild washing-up liquid solution and dried. The
turntable is dishwasher safe. This should prevent a
build up of grease and food debris.
WARNINGS: 
R-874M/R-84STM Op Man/Ck Bk  30/3/01  9:11 am  Page 63
64
Website: http://www.sharp.co.uk/support
Help Line: 08705 274277 (office hours)
TROUBLESHOOTING
If you think the oven is not working properly there are
some simple checks you can carry out yourself before
calling an engineer. This will help prevent unnecessary
service calls if the fault is something simple.
Simply answer “YES” or “NO” to the following questions:
1. Does the oven lamp come on when you open the
door? 
YES/NO
(Put half a cup of water in the oven, on the turntable
and close the door. Select 100% and programme the
oven to cook for 1 minute.)
2. Does the oven lamp come on?
YES/NO
3. Does the turntable rotate?
YES/NO
4. Does the cooling fan work? (Check by placing your
hand above the air-vent openings)
YES/NO
5. After 1 minute does the "beep" sound? YES/NO
6. Is the water in the cup hot?
YES/NO
(Take the cup out of the oven and close the door. Set
the grill time for the top and bottom grill for 3 minutes.)
7. At the end of 3 minutes do both the grill elements
become red?
YES/NO
(Programme the oven on convection 180°C for 3
minutes.)
8. Does the oven lamp come on?
YES/NO
9. Does the turntable rotate?
YES/NO
10. After 3 minutes is the oven cavity hot? YES/NO
If you answer “NO” to any question first check that the
oven is plugged in properly and the fuse has not blown,
if there is no fault with either, check the troubleshooting
chart on page 65.
WARNINGS:
• It is hazardous for anyone other than a
competent person to carry out any
service or repair operation which
involves the removal of a cover which
gives protection against exposure to
microwave energy.
• The door seal stops microwave leakage during oven
operation, but does not form an airtight seal. It is
normal to see drops of water, light or feel warm air
around the oven door. Food with a high moisture
content will release steam and cause condensation
inside the door which may drip from the oven.
• Repairs & Modifications: Do not attempt to operate
the oven if it is not working properly. 
• Outer Cabinet & Lamp Access:  Never remove the
outer cabinet. This would be very dangerous due to
high voltage parts inside which must never be
touched, as this could be fatal. As your oven is not
fitted with a lamp access cover, if the lamp fails, do
not attempt to replace the lamp yourself, call a
SHARP approved service facility.
NOTES:
The following cooking conditions should not cause
concern:
1. If you cook food for more than the standard time 
(see chart opposite) at the same power level, the
oven’s safety mechanisms will automatically
activate. The microwave power level will be
reduced and the grill heating elements will turn
on and off.
2. After Grill, Dual Cooking, Convection, Instant
Cook, Express Cook and Meal in One modes, the
cooling fan will switch on for cooling the oven
cavity. When the cooling fan works, the display
may show “NOW COOLING”. To clear it, press
the  STOP/CLEAR key and the display will show
the time of day, if set.
During these modes, the cooling fan will also
work when you press the STOP/CLEAR key. You
may feel air blowing out of the air-vent openings.
IMPORTANT: If the display shows nothing even if the power plug is properly connected, the energy save
mode should carry on. To release it, open and then close the oven door. See page 8.
Dual cooking
DUAL - 2
Microwave 100% cooking
Microwave 10% - 70% cooking
DUAL - 3
Microwave 100% cooking
Microwave 10% - 70% cooking
COOKING MODE
Microwave 100% cooking
Grill cooking
GRILL - 1
GRILL - 2
GRILL - 3
STANDARD TIME
20 MINUTES
30 MINUTES
45 MINUTES
TOP GRILL 15 MINUTES
BOTTOM GRILL 15 MINUTES
MICROWAVE 20 MINUTES
TOP GRILL 15 MINUTES
TOP GRILL 30 MINUTES
MICROWAVE 20 MINUTES
BOTTOM GRILL 15 MINUTES
BOTTOM GRILL 45 MINUTES
R-874M/R-84STM Op Man/Ck Bk  30/3/01  9:11 am  Page 64
65
Website: http://www.sharp.co.uk/support
Help Line: 08705 274277 (office hours)
TROUBLESHOOTING
TO REPLACE THE MAINS PLUG
POSSIBLE CAUSE
When oven is working, air circulates within the cavity. The door does not form an
airtight seal, so it is normal for air to escape from the door.
The oven cavity will normally be colder than the food being cooked, and so steam
produced when cooking will condense on the colder surface. The amount of steam
produced depends on the water content of the food being cooked. Some foods,
such as potatoes have a high moisture content. Condensation trapped in the door
glass should clear after a few hours.
Arcing will occur when a metallic object comes into close proximity to the oven cavity
during cooking. This may possibly roughen the surface of the cavity, but would not
otherwise damage the oven. 
Ensure all “eyes” are removed and stand directly onto the turntable or in a heat
resistant flan dish or similar.
Check the door is closed properly.
Ensure correct power level has been selected.
The microwave energy pulses ON/OFF during cooking/defrosting.
The cabinet may become hot to the touch - keep children away.
Outer cabinet/door is hot.
PROBLEM
Draught circulates around
the door.
Flashing or arcing from
within the cavity when
cooking.
Arcing potatoes.
After setting the time, the
oven does not start.
Oven cooks too slowly.
Oven makes a noise.
Condensation forms in the
oven, and may drip from
the door.
The wires in the mains cable are colour coded as
shown opposite:
As the colours of the cores in the mains lead of your
oven may not correspond with the coloured marking
identifying the terminals in your plug, connect the
wires as shown opposite.
Make sure the terminal screws are tight and the cable
is held securely by the cable grip where it enters the
plug. Like most appliances in your home, your oven
must be connected to a single phase  230-240 Volt,
50Hz alternating current supply.
If you do not make the proper electrical connections
you might damage the oven or injure yourself.  Neither
SHARP nor the supplier will be liable if this happens. 
green and yellow stripes =
EARTH
blue
=
NEUTRAL
brown
=
LIVE
• The green and yellow wire to the plug terminal
marked E or
or coloured green or coloured
green and yellow.
• The blue wire to the plug terminal marked N or
coloured black or coloured blue.
• The brown wire to the plug terminal marked L or
coloured red or coloured brown.
WARNING!
THIS APPLIANCE MUST BE EARTHED.
IF YOU HAVE ANY DOUBTS ABOUT YOUR
ELECTRICAL SUPPLY ASK A QUALIFIED
ELECTRICIAN.
R-874M/R-84STM Op Man/Ck Bk  30/3/01  9:11 am  Page 65
66
Website: http://www.sharp.co.uk/support
Help Line: 08705 274277 (office hours)
• For general information & assistance with oven
queries, please contact our 
Customer Information Centre:
U.K.:
08705 274277 (office hours)
Ireland:
01 676 0648 (office hours)
Websitehttp://www.sharp.co.uk/support
• Replacement accessories may be obtained from our
main parts distributor Willow Vale Electronics Ltd.
Telephone:  0121 766 5414
• If you are unable to resolve a problem using the
checks covered on the last few pages, do not
attempt to service this microwave oven
yourself.
• Contact the dealer or supplier from whom the oven
was purchased in order to obtain service. Where this
is not possible, please contact the SHARP Customer
Information Centre, telephone: 
08705 274277 (office hours).
CALLING FOR SERVICE
GUARANTEE
Subject to the conditions listed below, SHARP
Electronics (U.K.) Ltd (hereafter called “the Company”),
guarantee to provide for the repair of, or, at its option
replace this SHARP equipment, or any component
thereof, (other than Glass Turntables), which is faulty or
below standard, as a result of inferior workmanship or
materials.
The conditions of the Guarantee: 
1 This Guarantee shall only apply to defects or faults
which are notified to the Company, or 
SHARP
approved service facility
, within one year from the
date of purchase of the equipment, provided that
this Guarantee shall extend for a further period of
one year in respect of microwave oven magnetron
parts only.
2 This Guarantee covers equipment intended for
private domestic use only. This oven is suitable for
domestic food preparation and is not designed for
commercial, industrial or laboratory use. This
Guarantee does not apply to equipment used in the
course of a business, trade or profession.  Only use
the microwave oven for cooking, defrosting or
reheating of food. SHARP declines any liability for
damages caused by improper use.
3 This Guarantee does not cover any faults or defects
caused by accident, misuse, fair wear and tear,
neglect, tampering with the equipment, or any
attempt at adjustment or repair other than by a
SHARP approved service facility
.  
4 Please clean your microwave oven regularly and
remove any stains or  fat  residues without delay.
Failure to do this may affect the quality and safety of
the product or prejudice your guarantee.
5 In the unlikely event of your equipment requiring
repair, please contact the dealer or supplier from
whom it was purchased.  You will need to provide
proof of date of purchase to the repairing company.
Please keep your invoice or receipt, which is
supplied at the time of purchase. Where it is not
possible to contact the dealer or supplier from whom
the oven was purchased, please contact the
telephone number given below.  You will then be
given details of how to obtain service.
Telephone: 08705 274277 (office hours)
6 This Guarantee is offered as an additional benefit to
the consumer’s statutory rights and  does not affect
these rights in any way.
SHARP parts and accessories have been specifically
designed for SHARP Microwaves.
No liability can be accepted for any inaccuracies or
omissions in this publication, although every possible
care has been taken to make it as complete and
accurate as possible.
R-874M/R-84STM Op Man/Ck Bk  5/4/01  2:17 pm  Page 66
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