Troubleshooting - Arneg Astana LX Manuel D'installation Et De Service

Astana LX - Mini Astana LX
English

28. Troubleshooting

Problem
The cabinet • power black-out
stops and
• master switch turned off
does not
• plug detached
restart
• breakers triggered (fuses,
thermal breakers/differential
switches)
• electric controller faulty
i
The cabinet • the cabinet is in defrosting
phase
does not cool
• air inlets are obstructed
sufficiently
• the load is not distributed even-
ly
• the cabinet is next to air cur-
rents or heat sources
• the cabinet is not levelled
• evaporator frozen
The engine is • screws and bolts are not tight-
noisy ened
• the cabinet is not levelled
Condensate • poor room conditions
• poor air ventilation
• the window heaters do not work • check electrical connections
• the windows are not closed
properly
Cabinet • poor room conditions
temperature
is too high or
• output air temperature is out-
too low
side the specified range
• the cabinet is defrosting.
• the capacitor or the evaporator
are freezing.
• the capacitor or the evaporator
are obstructed or dirty.
• the load is not distributed even-
ly
62
Possible causes
once the electrical power supply has been restored, check that all the
electrical equipment in the store will restart without triggering the over-
load protection devices; otherwise, modify the system to differentiate the
start-up of the various devices.
If power is not restored in a short time, store the goods in a cold room to
maintain the storage temperature.
Possible solutions
• check the cause of the black-out
• turn on the switch
• insert the plug
• check the temperature of the condensing
unit
• replace the controller
• wait for defrosting to complete (about 30min)
• release air inlets
• load the goods in an orderly fashion (Fig.23)
• check the position of the cabinet inside the
store chap.13
• level the cabinet see chap.13
• thaw it
• tighten the bolts and screws
• level the cabinet chap.13
• check the position of the cabinet inside the
store chap.13
• check the operation of fans and wiring
• check the operation of heating elements
• close the windows properly
• check the position of the cabinet inside the
store chap.13
• check the operation of evaporator fan
• check wiring and input voltage
• the fans are installed reversely; check and re-
store the air flow direction
• check that fan plenum is sufficient and not
obstructed
• check the intake pressure that should comply
with rated specifications
• check defrosting parameters
• check that the suction line is not obstructed
• proceed with cleaning operations see chap.20
• load the goods in an orderly fashion (Fig.23)
05060194 01 05-2022