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3-1-14. TEST FUNCTION
1. Test function is intended to check function of PCB and the product and find a failure part with failure status.
2. The test S/W exists on the main PCB, and ends the test mode after 2 hours irrespective of the test mode, and then
returns to normal status.
3. Function button is neither detected, nor button recognition sound comes out during the test mode.
4. Ensure to take the power cords out in completion of the test mode so that normal status will be arrived.
5. Release the test mode and display the failure mode if failure such as sensor failure during the test mode.
6. No test mode is performed even when pressing the test button during display of failure code.
MODE
OPERATION
Press the test S/W
TEST1
once
Press the test S/W
TEST2
once in the test mode 1
Press the test S/W 3
Normal
times in the test mode 2
status
• LED check function
All LEDs turn on if pressing both upper "Store" button and middle "Store" button at the same time for 1 second or more,
and display the previous status if releasing the button.
• FRONT-C Heater touching inspection mode
The FRONT-C heater consecutively turns on for 5 minutes and is then released if pressing both upper "Store" button and
lower "Ferment" button for 5 seconds or more. It is released if pressing them again for 5 senconds or more.
- Release check: LED on the remainder time display part of the lower compartment turns on with pressing for 5 seconds or
more.
- Input check: LED on the flavor keeping part turns on with pressing for 5 seconds or more.
DETAILS
1. COMP (* Fan motor at machine room) ON
2. Defrost heater OFF at upper, middle compartment.
3. FRONT-C heater OFF
4. Fan motor at upper/middle compartment, damper
at middle/lower compartment and 3-way valve
operates to cool the upper/middle&lower
compartment in interval of 16/24 minute.
5. For display, the only "Min" LED of the upper room
turns on.
1. COMP (* Fan motor at machine room) OFF
2. Fan motor OFF at upper, middle compartment
3. Defrost heater ON at upper, middle compartment
4. FRONT-C heater ON
5. All dampers at middle, lower compartment are
closed.
6. 3-way valve maintains previous status.
7. For display, the only "MIN" LED of the upper room
turns on.
Returns to initial status
- 14 -
REMARKS
Returns to normal status
when maximum 2 hours
have passed.
Defrost sensor at the
upper compartment
performs initialization at
more than 7 °C, and
middle defrost sensor at
more than 16 °C (COMP
delay for 7 minutes)
COMP operates after
delay for 7 minutes
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