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ENGLISH
CHAPTER 13 ALARMS
This table shows you the alarms which may occur
ALARM
DESCRIPTION
CAUSE
HOW TO SOLVE
Pr1
Cell probe error
• Cell probe is faulty
• Substitute probe
Pr2
Evaporator probe error
• Evaporator probe is faulty
• Substitute probe
Pr3
Condenser probe error
• Disabled
• Disabled
Pr4
Core probe 1 error
• Core probe 1 is faulty
• Substitute probe
Pr5
Core probe 2 error
• Disabled
• Disabled
Pr6
Core probe 3 error
• Disabled
• Disabled
CSd
Blocked compressor alarm • Disabled
• Disabled
COH
Overheated condenser
alarm
• Disabled
• Disabled
rtc
Internal clock error
• The device has not worked
for a long time
• Control unit is faulty
• Switch on the device
and set date again (see
par. 9.2.2)
• Service
AL
Minimum temperature alarm
• Cell probe is faulty
• Control unit is faulty
• Service
• Service
AH
Maximum temperature
alarm
• Cell probe is faulty
• Control unit is faulty
• Refrigeration unit is faulty
• Service
• Service
• Service
tiM
Cooling or freezing phase
completed after deadline.
• Insertion of a too hot item
• Insertion of a too large item
• Repeat cycle
• Repeat cycle
PD
Compressor Poup-Down
alarm
• Disabled
• Disabled
PF
Interruption of power supply
to the machine
• Power supply failure may
have occured
• Press any key to cancel
alarm
Open
door
Open door alarm
• The door has been left
open for too long time
• Close the door
HP
High pressure alarm
• Disabled
• Disabled
LP
Low pressure alarm
• Disabled
• Disabled
CtH
Compressor thermal protection • Disabled
• Disabled
ErC
No compatibility between
interface and control modu-
le error
• Firmware of setting
instrument is not compatible • Service
ErL
No communication between
interface and control modu-
le error
• Interface connection is
either incorrect or faulty
• Check connection
San
Sanification alarm
• Core probe is not properly
inserted
• Insert core probe and
repeat cycle
CH
Compressor working time
• Compressor working time
exceeded
• Plan a maintenance
intervention