DOWNLOAD Sharp R-90GCK (serv.man21) Service Manual ↓ Size: 1.16 MB | Pages: 43 in PDF or view online for FREE

Model
R-90GCK (serv.man21)
Pages
43
Size
1.16 MB
Type
PDF
Document
User Manual / Operation Manual
Brand
Device
Home Appliance / Microwave Oven
File
r-90gck-sm21.pdf
Date

Sharp R-90GCK (serv.man21) User Manual / Operation Manual ▷ View online

OVEN INTERIOR
• It is important to clean the interior of your
microwave oven after each use.
• To clean the oven interior, use a mild detergent
solution, such as washing-up liquid, with warm
water on a soft cloth.
• To assist with cleaning the oven interior, use the
Refresh Cycle. (Refer to page 29).
• Food and liquid splashes will build-up on the
oven walls and ceiling. If grease, fat and food
debris is allowed to build-up in the oven interior
it may overheat, smoke or even catch fire when
next using the oven.
• Keep the waveguide cover clean at all times.
The waveguide cover is constructed from a
fragile material and should be cleaned with care
(follow cleaning instructions above).
NOTE: Excessive soaking may cause
disintegration of the waveguide cover.
The waveguide cover is a consumable part and
without regular cleaning, will need to be
replaced.
• Food will release steam during cooking and
cause condensation inside the oven and door. It
is important to wipe the oven dry. A build-up of
condensation will eventually lead to rust forming
on the oven interior.
• Do not allow grease or dirt to build-up on the
door seals or areas around the door. This may
prevent the door from closing correctly and may
cause a leakage of microwaves (follow cleaning
instructions opposite).
• Ensure the turntable and accessories are cleaned
after every use with a mild washing-up liquid
solution and dried. This will prevent the build-up
of grease and food debris.
The turntable and accessories are dishwasher
safe.
SPECIAL NOTE for TURNTABLE SUPPORT:
After cooking, always clean the turntable support,
especially around the rollers. These must be free
from food splashes and grease. Built-up splashes or
grease may overheat and cause arcing, which may
begin to smoke or catch fire.
OUTER CABINET
• Wipe the outside of the microwave oven with a mild detergent solution, such as washing-up liquid, with
warm water on a soft cloth.
• The control panel must be wiped clean and dried with the door open, therefore inactivating the oven.
NOTES:
• Never use spray cleaners, oven pads or abrasive scourers as these damage the surface of the oven.
• Take care not to let soapy water drip through the small holes in the oven walls and the cavity floor.
Excess water spillage through these holes will cause damage to the oven interior. Never use a steam
cleaner.
• Failure to maintain your oven in a clean condition could adversely affect the life of the oven and
possibly result in a hazardous situation.
WARNING:
The door, outer cabinet, oven cavity, turntable, accessories and dishes will become very
hot during operation. Before cleaning, ensure they have cooled down.
roller
A39887,R90GCK O/M
35
CLEANING & MAINTENANCE
TINSEA962WRRZ-K32 UK R90GCK
UK R90GCK English P30-BackCover  04.1.9 9:08 AM  Page 35
A39887,R90GCK O/M
36
TROUBLESHOOTING
TINSEA962WRRZ-K32 UK R90GCK
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.
Follow this simple check below:
Place half a cup of water on the turntable and
close the door. Programme the oven to cook for 1
minute using 100% microwave power.
1. Does the oven lamp come on when it is
cooking?
2. Does the turntable rotate?
3. Does the cooling fan work? (Check by placing
your hand above the air vent openings.)
4. After 1 minute does the audible signal sound?
5. Is the water in the cup hot?
Take the cup of water out of the oven and close the 
door.
Programme the oven to cook for 3 minutes using
the convection on 180
°C.
6. After 3 minutes, is the oven cavity hot?
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
against the troubleshooting chart on the following
page.
NOTES:
• If you cook for a long time with only the same
cooking mode, the oven will lower the power
automatically to avoid overheating.
Check food is piping hot after cooking. If
necessary, you can extend the cooking time.
• After manual or automatic cooking using the
Speed Grill, Dual Cook or Convection modes,
the cooling fan will switch on to cool 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 return
to the time of day, if set.
During these modes, the cooling fan will carry on
working after you have pressed the
STOP/CLEAR key. You may feel hot air blowing
out of the air-vent openings.
• Your oven has a voltage check function. If the
voltage rises above 10% or falls below 10% of
the required 240 volts, the cooking results would
not be acceptable; therefore the oven will stop,
display an error message and interrupt the
cooking programme. Press the STOP key and
complete the cooking manually. It is imperative
that the power to the oven be checked to ensure
that a 240 volt circuit is serving the oven.
• 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 and Modifications: Do not attempt to
operate the oven if it is not working properly.
• Outer Cabinet & Lamp Access: Never remove
the outer cabinet. This is very dangerous due to
high voltage parts inside which must never be
touched, as this could be fatal.
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.
WARNING:
Never adjust, repair or modify the oven
yourself. It is hazardous for anyone
other than a SHARP trained engineer to
carry out servicing or repairs.
This is important as it may involve the
removal of covers that provide
protection against microwave energy.
UK R90GCK English P30-BackCover  04.1.9 9:08 AM  Page 36
ANSWER
When the oven is working, air circulates within the cavity.
The door does not form an airtight seal so air may 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 the potatoes have been pierced, place
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 and OFF during cooking/defrosting.
The cabinet may become warm to the touch - keep children away.
QUERY
Draught circulates
around the door.
Condensation forms in
the oven, and may drip
from the door.
Flashing or arcing from
within the cavity when
cooking.
Arcing potatoes.
The display is lit but the
control panel will not
work when pressed.
Oven cooks too slowly.
Oven makes a noise.
Outer cabinet is hot.
TROUBLESHOOTING CHART
A39887,R90GCK O/M
37
TROUBLESHOOTING
TINSEA962WRRZ-K32 UK R90GCK
UK R90GCK English P30-BackCover  04.1.9 9:08 AM  Page 37
A39887,R90GCK O/M
38
TO REPLACE THE MAINS PLUG
TINSEA962WRRZ-K32 UK R90GCK
The wires in the mains cable are colour coded as
shown:
Green and yellow stripes =
EARTH
Blue
=
NEUTRAL
Brown
=
LIVE
As the colours in the mains lead of your oven may
not correspond with the coloured marking
identifying the terminals in your plug, connect the
wires as described:
• 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.
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 230-240V, 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.
WARNING: THIS APPLIANCE MUST BE
EARTHED
If you have any doubts about your
electrical supply ask a qualified
electrician.
• 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).
• For general information and assistance with oven
queries, please contact our
Customer Information Centre:
U.K.: 
08705 274277 (office hours)
Ireland: 01 676 0648 (office hours)
Website: http://www.sharp.co.uk/support
• Replacement accessories may be obtained from
our main parts distributor: 
Willow Vale Electronics Ltd.
Telephone: 0121 766 5414
CALLING FOR SERVICE
UK R90GCK English P30-BackCover  04.1.9 9:08 AM  Page 38
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