Read Sharp R-1900M Service Manual online
R1900M
5 – 3
SPECIFICATION OF ERROR
Outline
Operation when error occurs Display in operation usually
When a basic performance and the function are ruined
Displaying and heating stop
EE0, EE1, EE2, EE3, EE8
When the dangers of the state of the high temperature and the ignition, etc. are
foreseen
foreseen
Displaying and heating stop
EE7
When you mistake the setting of the heating time
Operation stop
EE9
When neither the power supply nor the environmental condition are proper
Operation stop
EE4, EE5, EE6
When informing of the exchange time of parts
Display Only
CC1, CC2, CC3, CC4
Display for maintenance
Error his-
tory display
Content of maintenance
Check item
Parts to be
replaced
CC1
CC2
CC3
CC4
–
MG1 exchange time information
Using time of MG1
MG1
–
MG2 exchange time information
Using time of MG2
MG2
–
Exhaust Fan motor exchange time information Using time of Exhaust motor
Exhaust motor
–
T/C unit exchange time information
Using number of times of RY2/RY3
Relay unit
A
TEST PROCEDURE
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
B D C E F H I K L M
R P S S T
EE0
EE0
EE0
EE0
EE0
EE0
EE0
EE0
EE0
EE0
EE0
EE1
EE1
EE2
EE2
EE3
EE3
EE3
EE4
EE5
EE5
EE6
EE6
EE6
EE60
EE7
EE7
EE7
EE7
EE8
EE8
EE8
EE8
EE8
EE8
EE8
EE8
EE8
EE8
EE8
EE8
EE8
EE9
Magnetron
1and
/or
2
Power
transformer
1
&
2
High
voltage
capacitor
1
and
/or
2
H.V.rectifier
assembly
1
and/or
2
Secondary
interlock
switch
1
a
nd/or
Primary
interlock
system
Fuse
12A
1
and/or
2
Weak
points
for
F
an
motors
(DC24V)
Magnetron
temp.
fuse
1
and/or
2
Magnetron
thermistor
1
and/or
2
Exhaust
thermistor
Fan
m
otors
Exhaust
motor
Antenna
motor
1
a
nd/or
2
Air
flow
blocked
Low
or
High
power
supply
voltage
No
load
or
small
load
operation
Loose
wiring
Exceeding
of
maxmum
cooking
time
Burned
food
Relay
unit
Control
unit
Antenna
sensor
(1)
(Upper)
Antenna
sensor
(2)
(Lower)
Microwave
sensor
Frequency
of
power
supply
is
high.
EE 1
Failer of high voltage circuit 1
EE 2
Failer of high voltage circuit 2
EE 3
Failer of high voltage circuit 1&2
EE 4
Too high of input voltage(+13%)
EE 5
Too low of input voltage(-13%)
EE 7
Food burned (temp., too high)
EE 8
Melted contacts of relays
EE 9
Over maximum cooking time
EE 10
EEPROM error
EE 11
Life end of magnetron 1
EE 21
Life end of magnetron 2
EE 31
Life end of magnetron 1&2
EE 81
Life end of relays RY2/RY3
EE 83
Over Current error
EE 14
MG1 Cooling Fan lock judge
EE 24
MG2 Cooling Fan lock judge
EE 44
Exhaust motor lock judge
EE 54
Life end of exhaust motor
EE 15
MG1 antenna rotation error
EE 25
MG2 antenna rotation error
EE 35
MG1/2 antenna rotation error
EE 16
MG1 thermistor open
EE 26
MG2 thermistor open
EE 17
MG1 temperature, too high
EE 27
MG2 temperature, too high
EE 18
Magnetron 1
EE 28
Magnetron 2
EE 38
Magnetron 1& 2
EE 29
Exhaust thermistor open/short
EE 19
No food
EE 39
EE 60
EE 60
Small food
Not correct frequency
Not correct frequency
Error history
display
Usual error
display
Content of error
If the power supply voltage is higher than 240V+10% (264V), EE4 will be displayed.
If the power supply voltage is lower than 230V-12% (202V), EE5 will be displayed.
NOTE 1:
" " means that the parts should be replaced when EE11, EE21, EE31 or EE81 is indicated on the display.
NOTE 2:
Click on the first or last page to see other R-1900M service manuals if exist.