Sharp AX-GX2T(R), Service Manual

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[5] CHECKING TEMPERATURE IN THE CONVECTION (Oven) MODE
The following test procedure should be carried out with the oven is a fully assembled condition (outer case fitted).
It is difficult to measure the exact temperature in the convection oven. An accurate thermocouple type temperature tester must be used. A low priced
bi-metal type thermometer is not reliable or accurate. Position the thermocouple in the center of the oven cavity. The temperature should be checked
with outer case cabinet installed and set the oven temperature to 250
°
C in the convection mode (Oven). Approx. 15 minutes after the oven is started,
the temperature experienced may be approx. 15
°
C more or less than set temperature, however, in most cases the food cooking results will be satis-
factory. Difference in power supply voltage will also affect the oven temperature. The Household power supply voltage may sometimes become lower
than the rated voltage and cause under-cooking. If the power supply voltage is 10% lower than the rated voltage, longer cooking time is required by
10% to 20%.
[6] ERROR LIST
EE code
EE code is memorized in the EEPROM address 04h as error history.
Only antenna error code is memorized in the EEPROM address 05h.
To check the EE code, carry out the test mode No.2 as follows.
Error
display EE
code Detail of error Error condition Application
menu
Check
method
Check timing
from heating
start
Note
U04 04
Oven temperature
is high. Oven temperature is too
high fermentation
defrost Thermistor
(Oven)
After 1sec.
" " is blinking in the display.
When oven temperature is turned
under 90C, error is released.
U11 0B
Water exist in the
water tank Water exist in the water
tank at drain mode
drain mode
Water level
sensor
After 1sec
U15 0F Water tank is frozen
Engine heater tempera-
ture is too low.
Steam mode
water oven
water grill
Thermister
(Oven)
immediately
" "
blinking
0A Shortage of Water
Water in the water tank
isn't enough.
Steam mode
water oven
water grill
Water level
sensor
Auto mode:
after 30 sec
manual mode:
within 7 sec
Error
dis-
play
EE
code Detail of error Error condition Application menu Check timing Note
C00 Matching error The control unit and/or display unit is not for this model. Plug in
C01
<=>
888
11
Thermister (Oven)
error Thermister (Oven) is short or
open. Oven mode
Grill mode
Immediately
C02
<=>
888
12
Humidity sensor
error Humidity sensor is short or
open. Microwave mode
(Humidity sensor menu)
After 16 sec
C05
<=>
888
15
Engine heater
error Engine heater temperature is
too high.
Steam mode
Water oven
Water grill
Always
C07
<=>
888
17
Relay monitor
error
error condition
microwave mode: when convection heater or engine heater
operate.
all relay is off: when convection heater or engine heater
operate both convection heater and engine heater operate.
Microwave mode:
immediately
Oven, Grill mode:
when heater is off
01(Ad
dress
05)
Antenna error Antenna motor or antenna switch does not work. Microwave mode
When antenna error
is detected,
outout of miccrowave
is stopped.
C12
<=>
888
1C
Thermister
(Engine) error
Thermister (Engine) is open.
Steam mode
Water oven
Water grill When engine heater
operates
more than 30sec.
C14
EEPROM error
(EEPROM data
verification error)
EERROM Read data is not
same as EEPROM write data.
PWB short check program
Short check program
Plug in
(reset)
Something is burn-
ing in the oven. Humidity ladder level is too
low.
After 7 min
Power on and door closed [ ] [ ] [ ] [Door open] Version No. is displayed.
Select test number 2 by encoder) [ ] (Select address 04h or o5h by [ ])