A30317, SUK R-21AT O/M

T

ROUBLESHOOTING

If you think the oven is not working properly there are some simple checks which you can carry out yourself before you call for an engineer. This will help prevent unnecessary service calls if the fault is something simple.

Simply answer "YES" or "NO" to the following questions:

1Does the oven lamp come on when you open the

door?YES/NO

Put half a cup of water on the ceramic floor in the oven and close the door. Cook for 1 minute at 100%.

2 Does the oven lamp come on?

YES/NO

3Does the fan motor work? (Check by placing your

hand above the air vent openings)

YES/NO

4After 1 minute does the "Beep" signal sound?

YES/NO

5And did the heating indicator "ON" go out?

YES/NO

6 Is the water in the cup 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 against the trouble- shooting chart below.

!WARNINGS:

•Never adjust, repair or modify the oven yourself, or allow anyone other than a Service Technician, appointed by SHARP to carry out the service.

•The door seal stops microwave leakage during oven operation, but does not form an airtight seal. It is nor- mal 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 Service Technician appointed by SHARP.

PROBLEM

POSSIBLE CAUSE

 

 

Draught circulates around the

When oven is working, air circulates within the cavity. The door does not

door.

form an airtight seal so air may escape from the door.

 

 

Condensation forms in the

The oven cavity will normally be colder than the food being cooked, and so

oven, and may drip from the

steam produced when cooking will condense on the colder surface. The

door.

amount of steam produced depends on the water content of the food being

 

cooked. Some foods, such as potatoes have a high moisture content. Con-

 

densation trapped in the door glass should clear after a few hours.

 

 

Flashing or arcing from within

Arcing will occur when a metallic object comes into dose proximity to the

the cavity when cooking.

oven cavity during cooking. This may possibly roughen the surface of the

 

cavity, but would not otherwise damage the oven.

 

 

Arcing potatoes.

Ensure all "eyes" are removed and place in a heat resistant flan dish or

 

similar.

 

 

After setting the time, the

Check the door is closed properly.

oven does not start.

 

 

 

Oven cooks too slowly.

Ensure correct power level has been selected.

 

 

Oven makes a noise.

The microwave energy pulses ON/OFF during cooking/defrosting.

 

 

Outer cabinet is hot.

The cabinet may become warm to the touch - keep chidren away

 

 

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Sharp R-21AT Roubleshooting, Does the oven lamp come on?, Yes/No, Is the water in the cup hot?, Problem Possible Cause
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R-21AT specifications

The Sharp R-21AT is a versatile commercial microwave oven that has become a favorite among foodservice professionals due to its exceptional performance and reliable features. This model is specifically designed to meet the needs of busy kitchens, providing efficient cooking capabilities while ensuring consistent results.

One of the standout features of the Sharp R-21AT is its powerful microwave output, which reaches 1000 watts. This high wattage ensures that food is cooked quickly and evenly, reducing wait times and improving service efficiency. The R-21AT employs a unique microwave distribution system that enhances cooking performance by ensuring even heat distribution. This feature minimizes hot and cold spots, allowing for reliable cooking results every time.

Additionally, the Sharp R-21AT is equipped with a stainless steel exterior and cavity, making it not only durable but also easy to clean. The robust construction means that this microwave can withstand the rigors of a commercial kitchen, ensuring longevity and reliability. The safety interlock system further enhances the machine's durability and safety, ensuring it cannot operate when the door is open.

The control panel of the R-21AT is user-friendly, featuring intuitive controls that make it easy for staff to operate, even during busy hours. It includes pre-programmed settings that allow for quick cooking of various menu items, from reheating leftovers to defrosting frozen goods, making it incredibly versatile.

In terms of size, the Sharp R-21AT has a compact design that fits well in restricted kitchen spaces without compromising on performance. Its 0.8 cubic feet capacity is perfect for standard kitchen ware, enabling operators to heat multiple portions simultaneously.

Energy efficiency is another key characteristic of the R-21AT. It meets stringent energy conservation standards, helping establishments reduce their overall energy costs. This efficiency, combined with its performance and user-friendly design, makes the Sharp R-21AT an excellent investment for any food service operation looking to enhance productivity and customer satisfaction.

Overall, the Sharp R-21AT stands out in the commercial microwave oven market due to its powerful output, durable construction, user-friendly interface, and energy efficiency. It is an ideal choice for restaurants, cafes, and any foodservice operations aiming for high-quality performance and consistent results.
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