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9 For emergency
1
5
2
6
3
7
9
4
8
10
Error
Code
Error Contents
Remedy
Error lamp
State of
Refrigeration Unit
Pump down is
abnormal.
Pump down error has occurred. Ask a
dealer for inspection.
lighting
Unit operation
stops
Engine oil supply is
demanded.
Engine oil level has become low. Supply
engine oil (for diesel) till the oil level rises
to upper limit of level gauge.
blinking
Unit operation
continues
Sub-engine low speed
is not adjusted properly.
Sub-engine at the low speed operation
runs off largely from the rated speed. Ask
a dealer for adjustment.
blinking
Unit operation
continues.
Sub-engine high
speed is not adjusted
properly.
Sub-engine at the high speed operation
runs off largely from the rated speed. Ask
a dealer for adjustment.
blinking
Unit operation
continues.
Sub-engine stalls
frequently.
Sub-engine stalls frequently. Check to see
if sufficient fuel is in the fuel tank. If fuel is
sufficient, ask a dealer for inspection.
lighting
Unit operation
stops
Evaporator outlet
temperature sensor
failed.
Evaporator outlet temperature sensor coil
has blown or short-circuited. Ask a dealer
for inspection.
blinking
Unit operation
continues.
Supply air temperature
sensor 1 failed.
Supply air temperature sensor coil has
blown or short-circuited. Ask a dealer for
inspection.
blinking
(lighting)
Unit operation
continues. (Operation
stops if both have
failed simultaneously
with the inside
container temperature
sensor.)
Supply air temperature
sensor 2 failed.
Ambient temperature
sensor failed.
Ambient temperature sensor coil has blown or
short-circuited. Ask a dealer for inspection.
blinking
Unit operation
continues.
Defrost solenoid valve
1 failed.
Defrost solenoid valve 1 (SV2-1) has
failed. Ask a dealer for inspection.
blinking
Unit operation
continues.
Defrost solenoid valve
2 failed.
Defrost solenoid valve 2 (SV2-2) has
failed. Ask a dealer for inspection.
blinking
Unit operation
continues.
Unloader solenoid
valve failed.
Compressor unloader solenoid valve
(SV3) has failed. Ask a dealer for
inspection.
blinking
Unit operation
continues.
Condenser inlet
solenoid valve failed.
Condenser inlet solenoid valve (SV4) has
failed. Ask a dealer for inspection.
lighting
(blinking)
Unit operation stops
(Operation continues
partially.)
Fluid bypass solenoid
valve failed.
Fluid bypass solenoid valve (SV5) has
failed. Ask a dealer for inspection.
blinking
Unit operation
continues.
Electronic expansion
valve failed.
Electronic expansion valve (EEV1) has
failed. Ask a dealer for inspection.
lighting
Unit operation
stops
Buzzer circuit failed.
External buzzer circuit has short-circuited.
Ask a dealer for inspection.
blinking
Unit operation
continues.
Stop solenoid circuit
failed.
Stop solenoid circuit has short-circuited.
Ask a dealer for inspection.
lighting
Unit operation
stops
Starter relay failed.
Starter relay (SR) drive coil circuit has
failed. Ask a dealer for inspection.
lighting
Unit operation
stops
Motor relay circuit
failed.
Motor relay (ARMO) drive coil circuit has
short-circuited. Ask a dealer for inspection.
lighting
Unit operation
stops
Pre-heater relay failed. Pre-heater relay (ARPH) drive coil circuit has
short-circuited. Ask a dealer for inspection.
lighting
Unit operation
stops
Battery voltage
dropped.
Battery voltage has dropped. Replace the
battery if it is aged.
blinking
(lighting)
Unit operation
continues. (Operation
stops if abnormal is
detected during PTI.)
