Sharp R-4A52 Service Manual page 9

R-4A52
R-4E52
NOTE: "0" means direct cause and part. "A" means indirect cause and part.
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PROBLEM
2
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2 i? I'a I Z 5 2 L 222
Home fuse blows when power supply
cord is plugged into wall outlet.
Fuse M8A blows when power supply
cord is plugged into wall receptacle.
0 0
88 : 88 does not appear in display but
OFF
CONDITION
power supply cord is plugged into wall 0
outlet.
Display does not operate properly when
STOP/CLEAR pad is touched.
Oven lamp does not light at door
opened. (Display appears.)
Oven does not start when START pad
is touched. (Display appears.)
0
0
Oven lamp does not light. (Display
appears.)
Fan motor does not operate. (Display
appears.)
0
Turntable motor assembly does not
operate. (Display apears.)
0
Oven or any electrical parts does not
stop. But cooking time is 0 or
STOP/CLEAR pad is touched.
IN
:ONDITION
Oven seems to be operating but little or
no heat is produced in oven load. (Micro-
000 00 0
wave power level is set at HIGH.)
Oven does not seem to be operating
properly when MEDIUM HIGH, MEDI-
UM, MEDIUM LOW or LOW is set. (Oven
operates properly at HIGH and then the
STOP/CLEAR pad is touched the oven
stops.)
Oven goes into cook cycle but shuts
down before end of cooking cycle.
Oven stops as soon as when the START
pad is touched.
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8