Sharp R-1500AT Service Manual page 14

R1500AT
SPECIFICATION OF ERROR
When a basic performance and the function are ruined
When the dangers of the state of the high temperature and the ignition, etc. are
foreseen
When you mistake the setting of the heating time
When neither the power supply nor the environmental condition are proper
When informing of the exchange time of parts
TEST PROCEDURE
Usual error
Error history
display
display
EE 1
EE1 Failer of high voltage circuit 1
EE 2
EE2 Failer of high voltage circuit 2
EE3
EE 3 Failer of high voltage circuit 1&2
EE4 EE 4 Too high of input voltage(+13%)
EE5 EE 5 Too low of input voltage(-13%)
EE7 EE 7 Food burned (temp., too high)
EE8 EE 8 Melted contacts of relays
EE9 EE 9 Over maximum cooking time
EE8 EE 10 EEPROM error
EE1 EE 11 Life end of magnetron MG1
EE2 EE 21
Life end of magnetron MG2
EE3
EE 31
Life end of magnetron MG1, 2
EE8
EE 81 Life end of relays RY2/RY3
EE3 EE 83 Over Current error
EE0
MG1 Cooling Fan lock judge
EE 14
EE0 MG2 Cooling Fan lock judge
EE 24
Exhaust motor lock judge
EE0 EE 44
EE0 Life end of exhaust motor
EE 54
EE0 EE 15 MG1 antenna rotation error
EE0
EE 25 MG2 antenna rotation error
EE0 EE 35 MG1/2 antenna rotation error
EE8
MG1 thermistor open
EE 16
EE8
MG2 thermistor open
EE 26
MG1 temperature, too high
EE7
EE 17
MG2 temperature, too high
EE7
EE 27
EE8
Magnetron MG1
EE 18
EE8
Magnetron MG2
EE 28
EE8
Magnetron MG1& MG2
EE 38
EE8 Exhaust thermistor open/short
EE 29
EE6
No food
EE 19
EE6
EE 39 Small food
EE60 EE 60 Not correct frequency
NOTE 1: 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 2: " " means that the parts should be replaced if EE11, EE21, EE31 or EE81 is indicated on the display when error histories are checked.
NOTE 3: 1) If the magnetrons are used for more than 4000 hours, EE11, EE21 or EE31 will appear when error histories are checked.
2) If the on/off counts of the relay (RY2 or RY3) become more than 400000 times, EE81 will appear when error histories are checked.
3) Even if EE11, EE21, EE31 or EE81 appears when error histories are checked, if the oven is not operated for 3 minutes or more,
or if the oven is disconnected from the power supply once and then the oven is connected to the power supply, the oven can
be operated once more. But after that when the oven is going to be used again, EE1, EE2, EE3 or EE8 will appear and the oven
will not operate.
Display for maintenance
tory display
CC1 CC2 CC3 CC4
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Outline
A B D C E F H I K L M
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
Content of error
Error his-
Content of maintenance
– MG1 exchange time information
– MG2 exchange time information
– Exhaust Fan motor exchange time information
– T/C unit exchange time information
Operation when error occurs Display in operation usually
Displaying and heating stop
Displaying and heating stop
Operation stop
Operation stop
Display Only
Using time of MG1
Using time of MG2
Using time of Exhaust motor
Using number of times of RY2/RY3
5 – 2
EE0, EE1, EE2, EE3, EE8
EE7
EE9
EE4, EE5, EE6
CC1, CC2, CC3, CC4
R P S S T
Parts to be
Check item
replaced
MG1
MG2
Exhaust motor
Relay unit