Nor-Lake Blast Chillers & Blast Chillers-Freezers - Manual (Page 31)

-- IIN NS ST TA AL LL LA AT TIIO ON N M MA AN NU UA AL L --
09/12 Rev. B 143573
31
TAB.5
FAULT CAUSE REMEDY
No voltage on
Anomalous stop No power supply
Blown fuse
Loosened connections Restore power supply
Replace fuses
Check connection fitting
Compressor failure High and Low-pressure pressure-
switch on Clicker
on Contactor
failure
Compressor thermal relay on Ask for skilled assistance
Ask for skilled assistance
Ask for skilled assistance
Ask for skilled assistance
The compressor is working but
the cabinet is not cooling Frosted evaporator
No coolant inside the refrigerating
system
Delivery solenoid valve failure Open the door and carry out defrost cycle
Ask for skilled assistance
Ask for skilled assistance
Evaporator fans are not working Fan failure or short-circuit
Door micro failure Ask for skilled assistance
Ask for skilled assistance
The cycle cannot start Wrong cycle programming Check time and temperature parameters
AL High Press High Pressure Switch Qualified technician required
AL Room Probe Room Probe interrupted Qualified technician required
AL Evap Probe Evap Probe interrupted Qualified technician required
AL Cond Probe Cond Probe interrupted Qualified technician required
AL Needle Probe Needle Probe interrupted If a probe cycle is running, the cycle is time-controlled
Qualified technician required
AL Insert Needle Needle Probe not inserted Check the probe inserting cone
High T Room Room Temp above set value If the temperature is not within the specified range, apply
to a qualified technician
Low T Room Room Temp below set value If the temperature is not within the specified range, apply
to a qualified technician
AL BlackOut No power supply When power is restored, check the max. temperature
reached inside the room
AL Door Open QC room door open
Door micro faulty Close the door
Qualified technician required