Instruction/ maintenance manual of the product SR-GA421 Panasonic
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Service Manual Order No. PHA T070510C3 Automatic Rice Cooker SR-GA421/SR-GA281/SR-GA721 EXPORT © 2007 Panasonic Home Appliance (Thailand) Co.,Ltd All rights reserved. Unauthorized copying and distrbution is a violation of law . Specification Specification subject to change without notice.
2 SR-GA421/SR-GA281/SR-GA721 W ARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
3 SR-GA421/SR-GA281/SR-GA721 L N MICA HEA TER ASS’Y CAST HEA TER LAMP RESIST . T .F . INPUT SWITCH LAMP RESIST . KEEP WARM NEON LAMP (BIG) (SMALL ) E Green RICE COOKING NEON LAMP Lamp Lead Wire A (O.
4 SR-GA421/SR-GA281/SR-GA721 Cord Wire Earth (Green) Cord Wire Blue (N) Cord Wire Brown (L) Heater lead wire B (grey) Thermal fuse lead wire (Blue) Thermal fuse lead wire (Grey ) User positio n Heater.
5 SR-GA421/SR-GA281/SR-GA721 2. FUNCTION OF CENTER THERMOST A T AND THERMALFUSE A. Center Thermostat The center thermostat senses when the bottom of the rice cooker pan reach 134°C ± 6°C. And it’s action turns of f the cooking cycle, and starts the warming cycle.
6 SR-GA421/SR-GA281/SR-GA721 C. Thermal Fuse The thermal fuse is used to open the circuit to the cooking heater when the temperature has gone unusually high. This happens in cases such as incomplete contact between the heater and pan or if the switch buttons is forced to stay on keeping the heater energized abnormally .
7 SR-GA421/SR-GA281/SR-GA721 3. TROUBLESHOOTING GUIDE Symptom Diagnosis Remedy Cooking function ● Cooking fails (Cooking lamp is not shown) No continuity of cord? Y es ● Replace AC cord. No continuity of thermal fuse? Y es ● Locate cause for fusing and replace fuse.
8 SR-GA421/SR-GA281/SR-GA721 3. TROUBLESHOOTING GUIDE Symptom Diagnosis Remedy ● Earlier Switching-off ● Poor cooking finish T oo hard T oo soft Half-boiled Poor contact between pan and sheathed heater? (Check with bubbling test) Y es ● Replace pan or sheathed heater .
9 SR-GA421/SR-GA281/SR-GA721 4. TESTING PROCEDURE 1. Bubbling test Input the pan in the main body , and lightly rotate the pan clockwise and counter clockwise to set the pan on the heating plate properly . 1. Fill water until the center area of the pan bottom is dipped, and close the lid.
10 SR-GA421/SR-GA281/SR-GA721 4. TESTING PROCEDURE 3. Boiling control lever adjustment Such a mechanical operation as center thermostat goes up and down is used to turn on and off the micro-switch. Check and adjust this relationship as shown below . When the boiling switch is turned on.
1 1 SR-GA421/SR-GA281/SR-GA721 5. EXPLODED VIEW & P ACKING VIEW (SR-GA421/SR-GA281) EXPLODED VIEW (SR-GA421/SR-GA281).
12 SR-GA421/SR-GA281/SR-GA721 5. EXPLODED VIEW & P ACKING VIEW (SR-GA421/SR-GA281) P ACKING VIEW (SR-GA421/SR-GA281).
13 SR-GA421/SR-GA281/SR-GA721 6. REPLACEMENT OF P ARTS LIST & P ACKING LIST (SR-GA421/SR-GA281) P ARTS LIST Ref. No. Part Name Part No. SR-GA421 SR-GA281 Silver White White White White Silver HK S.
14 SR-GA421/SR-GA281/SR-GA721 6. REPLACEMENT OF P ARTS LIST & P ACKING LIST (SR-GA421/SR-GA281) LIST OF SCREW Ref. No. Part Name Part No. SR-GA421 SR-GA281 Silver White White White White Silver HK.
15 SR-GA421/SR-GA281/SR-GA721 7. EXPLODED VIEW & P ACKING VIEW (SR-GA721) EXPLODED VIEW (SR-GA721) SR-GA721 / U.S..
16 SR-GA421/SR-GA281/SR-GA721 7. EXPLODED VIEW & P ACKING VIEW (SR-GA721) P ACKING VIEW (SR-GA721).
17 SR-GA421/SR-GA281/SR-GA721 8. REPLACEMENT OF P ARTS LIST & P ACKING LIST (SR-GA721) P ART LIST Ref. No. Part Name Part No. SR-GA721 White White White Silver MAL SIN-DBD SIN-RBD USA 1 LID ASS’.
18 SR-GA421/SR-GA281/SR-GA721 8. REPLACEMENT OF P ARTS LIST & P ACKING LIST (SR-GA721) LIST OF SCREW Ref. No. Part Name Part No. SR-GA721 White White White Silver MAL SIN-DBD SIN-RBD USA A T APPING SCREW XTN4+10BVW 2 2 2 2 B P .
An important point after buying a device Panasonic SR-GA421 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Panasonic SR-GA421 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Panasonic SR-GA421 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Panasonic SR-GA421 you will learn all the available features of the product, as well as information on its operation. The information that you get Panasonic SR-GA421 will certainly help you make a decision on the purchase.
If you already are a holder of Panasonic SR-GA421, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Panasonic SR-GA421.
However, one of the most important roles played by the user manual is to help in solving problems with Panasonic SR-GA421. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Panasonic SR-GA421 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center