Sharp R-55TS Service Manual page 14

R-55TS
TEST PROCEDURE
POSSIBLE CASE
DEFECTIVE PARTS
PROBLEM
CONDITION
C/T fuse blows when power cord is
plugged into wall outlet.
C/T fuse blows when the door is
opened.
Oven lamp does not light when
door is opened. (Display operates.)
OFF Home fuse blows when power cord
CONDITION
is plugged into wall outlet.
"88:88" does not appear in display
when power cord is plugged into wall
outlet.
Display does not operate properly
when STOP/CLEAR pad is pressed.
Oven does not start when the
START pad is pressed. (Display
operates.)
Oven lamp does not light. (Turntable
motor operates.)
Fan motor does not operate. (Oven
lamp lights.)
COOKING
CONDITION
Turntable motor does not operate.
(COMMON MODE)
(Oven lamp lights.)
Oven or electrical parts does not
stop when cooking time is 0 or
STOP/CLEAR pad is pressed.
Oven goes into cook cycle but shuts
down before end of cooking cycle.
Oven seems to be operating but little
or no heat is produced in oven load.
Oven does not operate properly
MICROWAVE
COOKING
during variable cooking condition
CONDITION
except 100% cooking condition.
Function of EXPRESS DEFROST
does not operate properly.
Upper heater does not operate.
Lower heater does not operate.
GRILL
COOKING
Upper and lower heaters do not
CONDITION
operate.
Upper heater does not operate.
Lower heater does not operate.
Upper and lower heater do not
BAKE
operate.
COOKING
CONDITION
Temperature is lower or higher than
preset.
Oven stops after 4 minutes 15 sec..
A B C D E E F F G H I
AND
I J L M N N N N N N O P RERERERE CK CK CK
12
CK = Check / RE = Replace