OHM ELECTRIC Cool Cabi OCA-S1300BCD-A200, Instruction Manual

Page: 44 / 48

20
7-5 Troubleshooting
Failure Cause Remedy
- The unit does not
turn on.
- Nothing is
displayed.
a. Circuit breaker tripped
b. The three-phase circuit power
supply is not correctly
connected.
(For OCA-S2300BCD-A200)
a. Turn on the breaker
b. Please confirm whether R,
S, and T phases are
correctly connected.
- Internal
temperature
rises too much
- Cool air is not
blown out
- Display shows High
Temp. Alarm E1 or
Radiation Error
Alarm E3
a. Circuit breaker tripped
b. Internal temperature is lower
than the setting temperature.
c. Less cooling capacity against
the set value.
d. Ambient temperature is
too high
e. Internal temperature is
too high.
f. Filter is dirty
g. External fan is not running
h. Internal fan is not running
i. Poor air circulation
a. Turn on the breaker
b. Check the temperature
setting and the internal
temperature.
c. Set a higher value,
or change the cooling unit
with a one of
higher capacity.
d. This unit is unusable
under a circumstance
where the ambient
temperature may
exceed 50
℃
.
e. This product cannot be
used where temperature
exceeds 45
℃
.
f. Clean the filter.
g. Check temperature
setting and the internal
temperature.
In case of fan failure,
replace the fan.
h. To check whether the fan
works properly, execute
forcible cooling (See 5-4 of
page 11). If it did not run,
fan replacement is
necessary.
i. Remove the problem
referring to the page 4.
- Fall in internal
temperature is
too much
a. Setting temp. is too low
b. Failure in the internal circuit
or the temperature sensor
a. Change the setting.
b. Contact the supplier.
- Display shows E5
Failure of built-in temperature
sensor
Contact the supplier.
- Display shows E8 Contact the supplier.
- Display shows SE Memory breakage Contact the supplier.
- Drain hose
discharges water
a. The cooling unit is used
outside the specified working
conditions.
b. Incoming air volume has
declined.
c. Evaporation fin or sheet
is dirty
a. Use within the specified
range.
b. Carry out maintenance
work referring to the
procedure in page 18 to 19.
c. Carry out maintenance
work referring to the
procedure in page 19.
Note: In case any problem is found during operation, turn off the power and stop using the
product and contact your supplier providing information including the model and the serial
number of your unit.