Alarm Table; Standard Maintenance; Warnings - Cordivari Bollyterm Home Manuel D'utilisation

10.4.1

Alarm table

Protection/
Malfunction
Stand-by
Normal running
Lower water temperature T2
probe fault
Upper water temperature T3
probe fault
Evaporator temperature
sensor fault
Air return temperature
sensor fault
Ambient temperature
sensor fault
High pressure switch (HP
Switch)
Low pressure switch (LP
Switch)
Overheating protection
(HTP Switch)
Defrosting
Communication error
11 .

Standard Maintenance

11.1

Warnings

Warning: before starting any maintenance operation make sure that the machine is not or cannot accidentally be electrically
powered. It is therefore necessary to disconnect the power supply at each maintenance.
Cod. 1910000001165 - nv01
Code LED flashing
Error sequence
Off
On
●
PP1
(1blink 1 off)
●
PP2
(2 blinks 1 off)
●
PP3
(3 blinks 1 off)
●
PP4
(4 blinks 1 off)
●
PP5
(5 blinks 1 off)
●
EE1
(6 blinks 1 off)
EE2
(7 blinks 1 off)
EE3
(8 blinks 1 off)
Defro sting ...
indicated (continuous flashing)
EE8 on
ALARM TABLE
Possible cause
1) Sensor circuit open
2) sensor short-circuit
1) Sensor circuit open
2) sensor short-circuit
1) Sensor circuit open
2) sensor short-circuit
1) Sensor circuit open
2) sensor short-circuit
1) Sensor circuit open
2) sensor short-circuit
1) Too high inlet air temperature
2) Insufficient water in the tank
3) Electronic expansion valve is
blocked
4) Too much refrigerant
5) Damaged switch
6) Uncompressed gas in the
refrigerant circuit
1) Too low inlet air temperature
2) Electronic expansion valve is
blocked
●
3) Insufficient refrigerant
4) Damaged switch
5) The fan assembly does not work
1) Too high tank water temperature
2) Damaged switch
●
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English
Corrective actions
1) check sensor connections
2) Replace sensor
1) check sensor connections
2) Replace sensor
1) check sensor connections
2) Replace sensor
1) check sensor connections
2) Replace sensor
1) check sensor connections
2) Replace sensor
1) Check if the inlet air temperature is
beyond limit
2) Check if the tank is full, otherwise fill
it
3) Replace electronic expansion valve
4) Drain part of the refrigerant
5) Replace switch
6) Drain the refrigerant and load it
again
1) Check if the inlet air temperature is
below limit
2) Replace electronic expansion valve
3) Load refrigerant
4) Replace switch
5) Check if the fan rotates during the
compressor operation, if not replace
the fan assembly.
1) if the tank water temperature is >
85°C, the switch stops the unit to
protect it. The unit restarts when
normal conditions are restored
(upper T probe < 60°C).
2) Replace switch