R-25JT-F
12
CK = Check / RST = Reset / RE = Replace
Home fuse blows when power cord is plugged into wall
receptacle
Monitor fuse blows when power cord is plugged into wall
receptacle.
" . " does not appear in display when power cord is first
plugged into wall receptacle.
Blower motor does not operate. (Oven lamp(s) and stirrer
motors go on for 1 minute after door is opened.)
Blower motor, oven lamp(s) and stirrer motors do not go on for
1 minute after door is opened.
Blower motor and stirrer motors go on but oven lamp(s) do not
light for 1 minute after door is opened.
Blower motor, oven lamp(s) and stirrer motors keep going on
after more than 1 minute when door is opened and closed.
Blower motor, oven lamp(s) and stirrer motors do not go on in
cook cycle.
Oven goes into a cook cycle but shuts down before and off
cooking cycle.
Oven does not go into cook cycle when START pad is touched.
Low or no power is produced during cooking condition. (The
food is heated incompletely or not heated at all.)
Extremely uneven heating is produced in oven load (food).
Variable cooking does not operates properly, except HIGH
power functions.
"EE1" Magnetron (1) failure.
"EE2" Magnetron (2) failure.
"EE3" Magnetron (1) and (2) failure.
"EE4" Voltage is too high.
"EE5" Voltage is too low.
"EE6" Oven thermistor (1) failure.
"EE7" Exhaust air temperature is too high.
"EE8" Relay melt short.
"EE9" Maximum time is exceeded.
"EE16" Oven thermistor (2) and Magnetron thermistor are
open.
"EE17" Magnetron temperature is too high.
OFF
CONDITION
CONDITION
PROBLEM
COOKING
CONDITION
ERROR
MODE
POSSIBLE CAUSE AND
DEFECTIVE PARTS
TEST PROCEDURE
MAGNETRON (1), (2)
POWER TRANSFORMER (1), (2)
H.V. RECTIFIER (1), (2)
HIGH VOLTAGE CAPACITOR (1), (2)
SECONDARY INTERLOCK SWITCH (1), (2)
PRIMARY INTERLOCK SYSTEM (1), (2)
DOOR SENSING SWITCH
MONITOR SWITCH (1), (2)
MONITOR FUSE
MAGNETRON TEMP. FUSE (1), (2)
OVEN TEMPERATURE FUSE
OVEN LAMP OR SOCKET
BLOWER MOTOR
SELECT SWITCH (1)
SELECT SWITCH (2)
SELECT SWITCH (3)
OVEN THERMISTOR (1)
OVEN THERMISTOR (2)
MAGNETRON THERMISTOR
NOISE FILTER
TOUCH CONTROL PANEL
KEY UNIT
RELAY (RY-1)
RELAY (RY-2)
RELAY (RY-3)
OPEN FOIL PATERN ON P.W.B.
SITTER MOTORS
AIR FLOW BLOCKED
LOOSE WIRING
SHORT IN POWER SUPPLY CORD
NO POWER AT OUTLET
LOW POWER SUPPLY VOLTAGE
EXCEED MAX. HEATING TIME
NO LOAD OPERATION
HIGH POWER SUPPLY VOLTAGE
AB
C
D
E
F
F
G
I
J
JC
K
H
H
H
K
K
L
KM
N
O
O
O
P
C
K
C
KC
K
C
KC
K
RST
RST
RST
CK
CK
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)