※１ Ambient temp 25℃
※２ Ambient temp 25℃～-16℃
5. TROUBLE SHOOTING
8
Is the output voltage from the power
supply to the compressor normal?
Approx. AC13V - 18V ※１
■ Does not get Cold
(There is no problem with the
battery voltage)
Is compressor
running?
Lower than AC１３Ｖ
Checking
Is the special
fuse of the DC
cord or the
blade fuse of
the power
supply blown?
Are wirings and couplers
connected?
Replace the
power supply.
Replace the fuse
See page 11
【Check 1】
See page 11
【Check 2】
Test result
Judge
Fixing
Connected repair.
Replace the
power supply.
Power supply is
broken
Normal
Yes
Yes
No
Normal
Normal
No
Yes
No
Gas leak, clogging, etc.
Replace the
cooling unit.
Is the operation
lamp of the
refrigerator on?
Is the output voltage from the control
assembly to the power supply normal?
Normal
See page 12
【Check 6】
teperature controller
is broken.
Replace the
teperature
controller
.
Replace the
power supply.
Lower than AC１３Ｖ
Power supply is
broken
Is the output voltage from the power
supply to the compressor normal?
Approx. AC13V - 18V ※１
See page 11
【Check 2】
Out of standard
Replace the
cooling unit.
Compressor lock etc.
Compressor resistance
Approx. 1.23 Ω (at 25 ℃)
※Using analog tester
0Ω
∞Ω
Normal
Coil disconnection
Coil short circuit
Is the output voltage from the power
supply to the control assembly normal?
Out of standard
Power supply is
broken
teperature controller
is broken.
Normal
Replace the
teperature
controller
.
See page 12
【Check 6】
Abnormal
Abnormal
Abnormal
Abnormal
Abnormal
Abnormal
Abnormal
See page 11
【Check 3】
