RHOSS ELECTA Series, Instructions For Use Manual, Page: 103 / 344

A2
Protective
measure
against the
detection of
excess DC
current
Unreasonable
overload
Check the installation room
(air intake and output clog-
ging). Check if excessive gas
has been loaded. Correct the installation position to prevent the air
intake and output from clogging.
If excessive gas has been loaded, recover the
refrigerant and then reload the required mass.
Drop in the
power supply
voltage
Check the power supply volt-
age (320V). Make sure that the power supply voltage is cor-
rect (230V).
PCB MAIN
Operate with the COMPRES-
SOR connector discon-
nected.
If the same error code appears again, replace the
PCB MAIN.
Temporary power
interruption (in the
event of lightning)
------- Disconnect and reconnect the power supply.
COMPRES-
SOR Fault is different from the
above cases.
The COMPRESSOR must be replaced.
A3
CT disconnec-
tion
PCB MAIN ------- Replace the PCB MAIN board.
A4
Protective
measure
against the
detection of
excess AC
current
Unreasonable
overload
Check the installation room
(air intake and output clog-
ging). Check if excessive gas
has been loaded. Correct the installation position to prevent the air
intake and output from clogging.
If excessive gas has been loaded, recover the
refrigerant and then reload the required mass.
Drop in the
power supply
voltage
Check the power supply volt-
age (320V). Make sure that the power supply voltage is cor-
rect (230V).
Temporary power
interruption (in the
event of lightning)
------- Disconnect and reconnect the power supply.
A5
Abnormal
rotation of the
compressor
Unreasonable
overload
Check the installation room
(air intake and output clog-
ging). Check if excessive gas
has been loaded. Correct the installation position to prevent the air
intake and output from clogging.
If excessive gas has been loaded, recover the
refrigerant and then reload the required mass.
Drop in the
power supply
voltage
Check the power supply volt-
age (320V). Make sure that the power supply voltage is cor-
rect (230V).
Fuse CF6,
CF2
6-10kW Unit: Check the elec-
trical continuity of FUSE CF6
ZLWKDWHVWHU>¿J@
If fuse CF6 is blown, replace the PCB MAIN.
13-16kW Unit: Check the
electrical continuity of FUSE
&)ZLWKDWHVWHU>¿J@
If fuse CF2 is blown, replace the PCB MAIN.
Temporary power
interruption (in the
event of lightning)
------- Disconnect and reconnect the power supply.
Obstruction in
the PUMP or
in the hydraulic
circuit
Check the difference be-
tween the water input and
output. A great difference
PHDQVWKDWWKHÀRZUDWHLV
too low.
Remove the obstruction and resume operation.
COMPRES-
SOR or PCB
MAIN
Fault is different from the
above cases.
The COMPRESSOR must be replaced.
A6
Intake temper-
ature sensor
error
INTAKE TEMP.
SENSOR
Check the electrical continu-
LW\ZLWKDWHVWHU>WDEOHV@
Replace the sensor if it is faulty.
A7
Defrosting
temperature
sensor error
DEFROSTING
TEMP. SEN-
SOR
Check the electrical continu-
LW\ZLWKDWHVWHU>WDEOHV@
Replace the sensor if it is faulty.
Error
Code
Description Relevant part
9HUL¿FDWLRQPHWKRG
Solution
103
Section II :: Installation and maintenance EN