No
No
Yes
No
※１ Ambient temp 25℃
※２ Ambient temp 25℃～-16℃
※3 Ambient temp 30℃～0℃
4. TROUBLE SHOOTING
11
Power supply output ｖｏｌｔａｇｅ.
(To the Compressor)
DC12V/24V→AC15V～19V
※１
Yes
●Does not get cold.
(No abnormality to
use power)
Is compressor
running?
DC12V→Lower than
AC15V or 0V
Checking
Are wirings and couplers
connected?
Replace the fuse.
See page 15
【Check 2】
Test result
Judge
Fixing
Connected repair.
Replace the
power supply.
AC 0V
Output
maladjustment
Is control assy
lamp lit?
Yes
NO
Yes
Normal
The compressor is locked,
or Compressor coil is
disconnection or shorted.
Normal
Normal
Replace the
power supply.
NO
Fuse of the DC
cord is normality?
See page 15
【Check 1】
Is control assy
lamp flashing?
Go to page 5
(■ Error
Display List
(LED flashing))
Yes
Unable to fix.
Resistance of the EVA.Thermistor.
(Cabinet side)
Approx. 2kΩ～10kΩ※２
EVA.Thermistor is broken.
∞Ω
It can not be
removed from
the cooling
system.
Unable to fix.
NO
Power supply output
ｖｏｌｔａｇｅ.
(To the Control assy)
DC12V→12V
DC24V→24V
※１
Normal
Replace the
power supply.
DC 0V
Replace the
control assy.
Abnormality
Higher than 2.0A
The compressor is locked, or
contaminated.
Lower than 1.7A
Gas is leaking.
Compressor rated current.
Approx. 1.7A～2.0A
Unable to fix
See page 16
【Check 5】
Power supply output ｖｏｌｔａｇｅ.
(To the Compressor)
DC12V/24V→AC15V～19V
※１
See page 15
【Check 2】
See page 17
【Check 7】
