5-15
CONDITION
CHECK
RESULT
CAUSE
REMEDY
1. Fuse blows.
Continuity.
No continuity.
Continuity.
Shorted contact at
the primary switch.
Replace fuse,
primary, monitor,
secondary
switches, and
RELAY(RY2) of
P.C.B Assembly.
No continuity.
Normal.
Defective high
voltage capacitor.
Replace high
voltage capacitor.
Fuse blows again
Defective high volt-
age transformer.
Replace high volt-
age transformer.
Malfunction of the
monitor switch.
Replace fuse,
primary, monitor,
secondary
switches, and
RELAY(RY2) of
P.C.B Assembly.
Check continuity
of monitor
switch (with
door closed).
Check continuity
of primary
switch (with
door opened).
Disconnect one
side of the wire
lead connected
from transformer
to the high
voltage
capacitor and
operate the unit.
Replace fuse
Continuity.
Malfunction of
secondary switch.
Replace fuse,
primary, monitor,
secondary
switches, and
RELAY(RY2) of
P.C.B Assembly.
No continuity.
Check continuity
of secondary
switch (with
door opened).
2. Fuse does not
blow.
No continuity.
Continuity.
No continuity.
Defective power
supply cord.
Replace power
supply cord.
Defective
thermostat.
Replace
thermostat.
Check continuity
of thermostat.
Check continuity
of power supply
cord.
(TROUBLE 2) Oven does not operate at all, Display window does not display any figures,
and no input is accepted.
NOTE : All these switches must be replaced at the same time. Refer to page 5-7, 5-8
Summary of Contents for MS-1071MC
Page 29: ...6 2 1002 1003 1008 1004 1000 1005 1006 1007 1001 DOOR PARTS ...
Page 30: ...6 3 2003 2004 2005 2000 W140 W032 2006 2001 2002 CONTROL PANEL PARTS ...
Page 31: ...6 4 3006 W101 3023 3002 3021 W081 3014 W094 3024 3025 3013 3020 OVEN CAVITY PARTS ...
Page 33: ...6 6 W067 5001 5002 W067 INTERIOR PARTS ...
Page 34: ...6 7 W067 W106 6002 6002 6009 6004 6001 6005 6006 6008 6007 W067 W101 BASE PLATE PARTS ...
Page 35: ...8 2 PRINTED CIRCUIT BOARD ...
Page 36: ...July 1997 Printed in Korea P NO 3828W5S0547 July 1997 P NO 3828W5S0547 Printed in Korea ...
