22
MONITOR OF FREEZER STATUS
The freezer has a function to monitor the running status of the unit as shown in table 7 below. This is to
notice the running status getting worse (not failure).
1.
The STATUS lamp is lit when one of the running status shown in table 7 is detected.
2.
The S code (--X, X: 1 to 3) is displayed on the temperature indicator by pressing STATUS key when
the STATUS lamp is lit.
3.
Pressing the STATUS key again causes current chamber temperature display on the temperature
indicator. (The indication returns to the chamber temperature display automatically when no key is
operated for 90 seconds.)
Table 7. Monitor of running status
Kind of
function
Status Indication
If this status
continues
Remedy
Notice of
abnormal
ambient
temperature
When the ambient
temp. is over about
35
o
C or lower than
about 0
o
C.
STATUS lamp
lights.
“--1” is displayed.
Decrease of cooling
performance or
durability of
refrigerating circuit.
Recheck of
air-conditioning of
installed site.
Notice of low
voltage
When the power
source voltage is
less than about 97V
when the rated
voltage is 115V or
less than about 195V
when the rated
voltage is between
220 and 240V.
STATUS lamp
lights.
“--2” is displayed.
Abnormal heat at
power supply outlet
or degrade of
starting performance
of refrigerating
circuit
Use of dedicated
power source.
Notice of
overload
condition
When the running
rate of refrigerating
Circuit is more than
usual.
STATUS lamp
lights.
“--3” is displayed.
Decrease of cooling
performance or
durability of
refrigerating circuit.
1. This is likely
happened when
large amount of
materials are stored.
2. Check of ambient
temp., voltage, and
sealing of
outer/inner door.
Note:
• The S code displayed on the temperature indicator is changed every a few seconds if two or three
status shown in the above table are detected at the same time.
（
--1
⇒
--2
⇒
--3
⇒
--1 repeated
）
• The monitoring function has no buzzer operation and no safety operation.
• In the case of multiple indication of S code, follow the remedy for each status.
