9 Troubleshooting
Operation manual
24
EZESHP20 EZLSHP20AUAW1B
Exigo E1500 Trailer Refrigeration Unit
4P726855-1 – 2023.03
WARNING
Stop operation and shut OFF the power if anything
unusual occurs (burning smells etc.).
Leaving the unit running under such circumstances may
cause breakage, electrical shock or fire. Contact your
dealer.
The system MUST be repaired by a qualified service person.
Malfunction
Measure
If the system does not
operate at all.
▪ Check if there is no power failure. Wait
until power is restored. If power failure
occurs during operation, the system
automatically restarts immediately after
power is restored.
▪ Check if no fuse has blown or breaker is
activated. Change the fuse or reset the
breaker if necessary.
The system stops
immediately after
starting operation.
▪ Check if air inlet or outlet of outdoor or
indoor unit is not blocked by obstacles.
Remove any obstacles and make sure
the air can flow freely.
The system operates
but cooling is
insufficient.
▪ Check if air inlet or outlet of outdoor or
indoor unit is not blocked by obstacles.
Remove any obstacles and make sure
the air can flow freely.
▪ Check if the evaporator inside the cold
room is not frosted up. Defrost the unit
manually,
or
shorten
the
defrost
operation cycle.
▪ Check if there are not too many articles
inside the cold room, see
19]. Remove a couple of
articles.
▪ Check if there is smooth air circulation
inside the cold room. Reorganise the
articles inside the cold room, see
▪ Check if there is not too much dust on
the condenser and/or radiator. Remove
the dust, see
21].
▪ Check if there is cold air leaking out of
the cold room. Stop the air from leaking
outside.
▪ Check if you did not set the temperature
too high. Set the setpoint appropriately,
see
▪ Check if there are no high-temperature
articles stored in the cold room. Always
store articles after they have cooled
down.
▪ Check if the door is not opened too long.
Reduce the opening time of the door.
The user interface
screen is visibly
broken
▪ Shut down the unit.
Alarms
The alarm icon may light up in three colors depending on the
severity of the problem, going from yellow over orange to red.
▪ Yellow: Is a warning, the unit remains fully operational.
▪ Orange: Grid or road mode thermo operation stops.
▪ Some orange alarms stop the engine (road mode), but the unit
can run in grid mode.
▪ Some orange alarms stop the grid power supply, but the unit
can run in road mode.
▪ Red: Is sign of a severe error. If a red alarm occurs, the unit is
switched off and a "STOP IN PROGRESS" screen pops up.
If the engine cannot be turned on, a "Unable to turn on" screen pops
up.
To access the alarm menu, see
17].
Alarm reset
▪ AUTO: Some errors reset automatically once the error condition is
solved.
▪ AUTO & MANUAL:
▪ Alarm will AUTO reset for X times.
▪ After X times a manual reset is required.
▪ MANUAL: Some errors need to be cleared manually. The root of
the error needs to be solved or the error will reoccur.
If after checking all above items, it is impossible to fix the problem
yourself, contact your installer and state the symptoms, the complete
model name of the unit (with manufacturing number if possible) and
the installation date (possibly listed on the warranty card).
9.1
Error codes: Overview
For your reference, a list with malfunction codes is provided. In case
a malfunction code appears, contact your installer to inform him of
the malfunction code and ask for advice.
