Normal
Yes
No
No
Yes
Yes
No
No
Yes
No
※１ Ambient temp 25℃
※２ Ambient temp 25℃ to -16℃
※４ Replacement of only the thermistor can not.
※３ Use tester: Digital multimeter
It will be the exchange of the cooling system.
5. TROUBLE SHOOTING
6
Yes
■ Does not get cold.
Checking
Is fuse blown?
Are wirings and couplers
connected?
Power check on the
vehicle side
Replace the fuse
See page 10
【Check 1】
Test result
Judge
Fixing
Connected repair.
Resistance of the compressor.
Approx. 1.6Ω ※1, ※３
Compressor coil is
disconnection.
Replace the
cooling system.
0Ω
Compressor coil is
shorted.
∞Ω
Resistance of the thermistor.
Approx. 2kΩ - 10kΩ※２
Thermistor is broken.
∞Ω
Power supply output ｖoｌｔａgｅ.
Approx. AC11V - 18V ※１
AC 0V
Power supply is
broken.
Replace the
power supply.
Lower than AC１1Ｖ
Output
maladjustment.
See page 11
【Check 5】
Normal
Normal
Normal
Power supply output ｖoｌｔａｇｅ.
Approx. AC11V - 18V ※１
Lower than AC１1Ｖ
Replace the
power supply.
Output
maladjustment
See page 11
【Check 4】
See page 10
【Check 2】
DC cord
lamp lit?
Power lamp lit?
Is compressor
running?
Check the fridge, Go to C
(Next page)
Replace the
cooling system.
※４
The compressor is locked, or
contaminated.
Replace the
cooling system.
A
See page 10
【Check 2】
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
Replace the
cooling system.
See page 12
【Check 8】
