Sharp R-340A Service Manual page 9

TEST PROCEDURE
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
PROBLEM
CONDITION
Home fuse blows when power
supply cord is plugged into
wall outlet.
FUSE M10A blows when
power supply cord is plugged
into wall outlet.
OFF
Display does not show any-
CONDITION
thing when power supply cord
is plugged into wall outlet.
Display does not operate prop-
erly when STOP/CLEAR pad
is touched.
Oven lamp does not light at
door opened. (Display ap-
pears.)
Oven does not start when the
START pad is touched. (Dis-
play appears)
Oven lamp does not light (Dis-
play appears.)
Fan motor does not operate.
(Display appears.)
Turntable motor assembly
does not operate. (Display
appears.)
Oven or any electrical parts
ON
CONDITION
does not stop when cooking
time is 0 or STOP/CLEAR pad
is touched.
Oven seems to be operating
but little or no heat is produced
in oven load. (Microwave
power level is set at HIGH)
Oven does not seems to be
operating properly when oven
is set for variable cooking
power. (Oven operates prop-
erly at HIGH and when the
STOP/CLEAR pad is touched
the oven stops.)
Oven goes into cook cycle but
shuts down before end of cook-
ing cycle.
A B C D E E E G F F H H I L M N O
7
R-340A
CK = Check / RE = Replace
RE CK CK RE CK CK CK CK CK
J K