Sharp R-774AST, Operation Manual

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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?
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 below.
WARNING: Never adjust, repair or modify the oven yourself. It is hazardous for anyone
other than a SHARP trained service personnel to carry out servicing or repairs. This is
provide protection against
• 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 Modifi cations: 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 fi tted with a lamp access cover. If the lamp fails, do not attempt to
replace the lamp yourself, call a SHARP approved service .
QUERY ANSWER
Draught circulates
around the door.
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.
Condensation forms
in the oven, and may
drip from the door.
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.
Flashing or arcing from
within the cavity when
cooking.
Arcing potatoes.
Ensure all "eyes" are removed from the potatoes and that they have
been pierced, place directly onto
the turntable or in a heat resistant fl an
dish or similar.
TROUBLE SHOOTING
MY-23
microwave energy.
important as it may involve the removal of covers that
centre