R-2397

TEST PROCEDURES

PROCEDURE

LETTER COMPONENT TEST

GWEAK POINT A017 CARRY OUT 3D CHECKS.

If the weak point A017 is blown, there could be a shorts or grounds in electrical parts or wire harness. Check them and replace the defective parts or repair the wire harness.

CARRY OUT 4R CHECKS.

CAUTION: Only replace weak point A017 with the correct value replacement.

HFUSE F6.3A TEST

CARRY OUT 3D CHECKS.

If the fuse F6.3A is blown when the door is opened, check the latch switch, monitor switch and monitor resistor.

If the fuse F6.3 is blown by incorrect door switching replace the defective switch(s) and the fuse F6.3A.

CARRY OUT 4R CHECKS.

CAUTION: Only replace fuse with the correct value replacement.

ITHERMAL CUT-OUT TEST CARRY OUT 3D CHECKS.

Disconnect the leads from the terminals of the thermal cut-out. Then using an ohmmeter, make a continuity test across the each two terminals as described in the table below.

CARRY OUT 4R CHECKS.

Table: Thermal Cut-out Test

 

Temperature of “ON”

Temperature of “OFF”

Indication of ohmmeter

Parts Name

condition (closed circuit).

condition (open circuit).

(When room temperature

 

(˚C)

 

(˚C) is

approx. 20˚C.)

 

 

 

 

Thermal cut-out 145˚C

This is not resetable type.

Above 145˚C

Closed circuit.

 

 

 

 

Thermal cut-out 115˚C

This is not resetable type.

Above 115˚C

Closed circuit

 

 

 

 

 

If incorrect readings are obtained, replace the thermal cut-out.

An open circuit oven thermal cut-out 115˚C indicates that the oven cavity has over heated, this may be due to no load operation.

An open circuit magnetron thermal cut-out 145˚C indicates that the magnetron has overheated, this may be due to resistricted ventilation, cooling fan failure or a fault condition within the magnetron or HV circuit.

An open circuit blower motor thermal cut-out 115˚C indicates the blower motor winding has overheated, this may be due to resisted ventilation or locked cooling fan.

JMONITOR RESISTOR TEST CARRY OUT 3D CHECKS.

Disconnect the leads from the monitor resistor. Using an ohmmeter and set on a low range. Check between the terminals of the monitor resistor.

The resistance of monitor resistor should be read approx. 4.3Ω.

If incorrect readings are obtained, replace the monitor resistor.

CARRY OUT 4R CHECKS.

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Sharp R-2397 service manual Fuse F6.3A Test, Thermal CUT-OUT Test Carry OUT 3D Checks, Table Thermal Cut-out Test
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R-2397 specifications

The Sharp R-2397 is a high-performance microwave oven that combines advanced technology with user-friendly features, making it a popular choice for modern kitchens. This model stands out due to its sleek design and efficient functionality, catering to both cooking enthusiasts and busy households alike.

One of the most notable features of the Sharp R-2397 is its powerful microwave cooking capabilities. With a wattage rating of 900 watts, it ensures that food is cooked evenly and quickly, allowing users to prepare meals in a fraction of the time compared to conventional ovens. The unit also offers multiple power levels, enabling precise cooking adjustments for various types of food, from defrosting to reheating and everything in between.

Another key characteristic of the R-2397 is its spacious interior. With a generous capacity of 23 liters, this microwave can accommodate larger dishes, making it suitable for families or individuals who enjoy hosting gatherings. The turntable feature promotes even cooking by rotating food continuously, ensuring that every inch is heated uniformly.

Additionally, the Sharp R-2397 is equipped with a range of convenient presets and auto-cook functions. These pre-programmed settings allow users to optimize cooking times for common dishes, such as popcorn, vegetables, and frozen meals, simplifying meal preparation and enhancing user experience. The intuitive control panel is designed to be user-friendly, ensuring that anyone can operate the microwave with ease.

Safety is also a significant consideration in the design of the Sharp R-2397. The unit comes with a child lock function, preventing accidental operation and ensuring that the oven is used safely in households with young children. This feature adds peace of mind for parents while using the appliance in their daily routines.

Moreover, the R-2397 incorporates a modern aesthetic that can fit into various kitchen styles. Its polished exterior and compact design make it both attractive and practical, with the added advantage of easy cleaning and maintenance.

In summary, the Sharp R-2397 is a versatile microwave oven that offers a blend of power, efficiency, and user-centric features. With its high wattage, spacious interior, smart presets, and safety measures, it is an excellent addition to any kitchen, catering to everyday cooking needs and helping to simplify meal times. Whether reheating leftovers or cooking a new recipe, the Sharp R-2397 sets itself apart as a reliable kitchen companion.
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