3-1-13. FAILURE DIAGNOSIS FUNCTION
(1) Failure Mode
1. Failure diagnosis function is intended in order that service is easily done when failure to affect performance of the product
during use occurs.
2. Function is neither done, nor buzzer sound rings even when pressing the button in occurrence of failure.
3. The product returns to normal operation if failure is released during display of failure code in occurrence of failure
(RESET).
4. All displays other then failure code display will turn off during occurrence of failure.
Note 1) All displays except failure code display 7 segments, will turn on if both upper store button and lower store button
pressed together.
- 12 -
"Failure code display"
1
2
3
4
5
6
7
8
9
10
Failure Display
NO
Item
Failures
Remarks
Failure of upper
compartment
sensor
Failure of middle
compartment
sensor
Failure of lower
compartment
sensor
Failure of upper
compartment
defrosting sensor
Failure of middle
compartment
defrosting sensor
sensor Failure of
ambient
temperature sensor
Failure of single
motor damper
Poor defrosting at
upper compartment
Poor defrosting at
middle compartment
Poor
communication
Upper compartment sensor is disconnected
or shorted
Middle compartment sensor is
disconnected or shorted
Lower compartment sensor is disconnected
or shorted
Upper compartment defrosting sensor is
disconnected or shorted
Middle compartment defrosting sensor is
disconnected or shorted
Ambient temperature sensor is
disconnected or shorted
When ON/OFF of the reed-S/W is not
dectected even when driving the single
motor damper for 2 minutes
When defrosting sensor at the upper compartment
does not reach to more than 7°C even when two
hours have passed after starting defrost
When defrost sensor at the middle compartment
does not reach to more than 16°C even when
two hours have passed after starting defrost
When no communication is consecutively
done for 30 seconds
* Check wiring of respective
relevant sensor.
Damper motor damaged,
frozen, coil damaged, driving
IC(photo coupler) failure
Short of temperature fuse,
short of heater, clogging of
drain, poor heater driving relay
Short of temperature fuse,
short of heater, clogging of
drain, poor heater driving relay
Taking out of connector, Poor
TR on communication part
FS
US
LS
d1
d2
Note 1)
dP
H1
H2
CO
Summary of Contents for Dios GR-J303UG Series
Page 5: ...2 CIRCUIT DIAGRAM 5 ...
Page 27: ...3 4 PCB PARTS DIAGRAM AND LIST 3 4 1 PWB PCB ASSEMBLY MAIN 1 Parts diagram 27 6871JB1129 S ...
Page 28: ... 2 Parts List 28 ...
Page 29: ... 29 ...
Page 30: ...3 4 2 PWB PCB ASSEMBLY DISPLAY STANDARD 1 Parts diagram 30 2 Parts List ...
Page 32: ... 32 ...
Page 33: ...3 5 2 PWB PCB ASSEMBLY DISPLAY CIRCUIT DIAGRAM 33 ...
