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9 For emergency
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5
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List of error codes
Error
Code
Error Contents
Remedy
Error lamp
State of
Refrigeration Unit
Throttle solenoid fuse
is blown.
Fuse F3 has blown. Replace the fuse F3
(30A) in the control box with a spare fuse
30A. If the same error repeats after the
replacement, ask a dealer for inspection.
blinking
Unit operation
continues.
Load drive circuit fuse
is blown.
Fuse F2 has blown. Replace the fuse 2
(10A) in the control box with a spare fuse
10A. If the same error repeats after the
replacement, ask a dealer for inspection.
lighting
Unit operation
stops.
Commercial power
supply is faulty.
Commercial power supply is interrupted
or the power plug is not connected to the
power socket. Check the power supply.
blinking
Unit operation stops.
(Automatic operation
reset)
High-pressure
protection device
tripped.
High-pressure switch has tripped.
(1) Open the panel and inspect the
condenser fan drive belts (ribbed belt,
2 pcs.) for any abnormality.
(2) Check to see if the condenser coil is fouled
heavily. If so, cleanse it with water. (High-
pressure cleansing is prohibited.)
lighting
Unit operation stops.
Discharge gas
temperature is
abnormally high.
Refrigerant temperature at the compressor
discharge side has reached the protective
temperature. Consult a dealer.
blinking
Unit operation
stops.
(Automatic
operation reset)
lighting
Unit operation
stops.
Insufficient refrigerant
quantity
Refrigerant quantity is extremely low.
Ask a dealer for inspection.
lighting
Unit operation
stops.
Low-pressure is
abnormally low.
Refrigerant pressure at the compressor
suction side has dropped to the protective
pressure. Ask a dealer for inspection.
lighting
Unit operation
stops.
High-pressure sensor
failed.
High-pressure sensor is not operating
normally. Ask a dealer for inspection.
lighting
Unit operation
stops.
Sub-engine oil
depleted.
Sub-engine hydraulic switch has tripped.
Replenish engine oil (for diesel) till the oil
level rises to upper limit of level gauge.
lighting
Unit operation
stops
Sub-engine cooling
water temperature is
abnormally high.
Sub-engine water temperature switch has
tripped. Inspect the water quantity in the
reservoir tank and replenish if necessary.
(Antifreeze coolant density 50%wt) Also
inspect and clean the radiator (heat exchanger
placed at right as seen facing the refrigeration
unit).
lighting
Unit operation
stops.
Sub-engine speed is
abnormally low.
Sub-engine speed is extremely low. Ask a
dealer for inspection.
blinking
(lights after
9 blinkings)
Unit operation stops.
(Automatic operation
reset repeats up to
9 times.)
Sub-engine starting
failed.
Inspect the fuel tank to see if fuel is reserved.
If fuel is reserved, inspect the battery.
lighting
Unit operation
stops
Sub-engine overrun.
Sub-engine speed has increased far beyond
the setting value. Ask a dealer for inspection.
lighting
Unit operation
stops
