-
manual
HRC
70
PILOT -PREMIUM-
/2
-
34
Display
Name
Source of defect
Consequence(s)
Repairing and removing
error messages
AIR hp
ERR
Air temperature sensor
defect
HP air temp. sensor data is out of
measuring range.
Target temperature = (max
water temp.+ min water temp )/2
Automatic after repair
AMBIeNCE 1
ERR
Amb1 sensor defect
Attention : the room temperature
sensor with display should be entered
as INT SENSOR for circuit 1 only.
is programmed as SENSOR and the data
displayed is out of measuring range
or
sensor is recognized instead and the
data displayed is out of measuring
range.
Heating request
Automatic after repair
AMBIeNCE 2
ERR
Amb2 sensor defect
Attention: the room temperature
sensor with display should be entered
as INT SENSOR for circuit 1 only.
Circuit 2 is programmed for radiators or
underfloor heating with room
termperature sensor, and the data
displayed is inaccurate.
Heating request
Automatic after repair
BUS
err
BUS
2-core sheathed cable or BUS
connection defect, fuse not working, or
electronic circuit board(s) defect.
HP stopped,
back-up alone authorised
BUS link, replacement
fuse, or replacement of
electronic circuit board(s)
/
Manual
Compressor 1 sensor
defect
Compressor 1 sensor data is out of
measuring range.
Both compressors stopped
and also the fan
Automatic after repair
Compressor 1
temperature defect
"Compressor 1 overheating"
(compressor temperature >115°C)
more than 24 times over 24 hours
Both compressors stopped
Manual
Compressor 2 sensor
defect
Compressor 2 sensor data is out of
measuring range.
Both compressors stopped
and also the fan
Automatic after repair
Compressor 2
temperature defect
"Compressor 2 overheating"
(compressor temperature >115°C)
more than 24 times over 24 hours
Both compressors stopped
Manual
flow
ERR
Zero flow rate defect
"Zero flow rate" repeated after
8 attempts.
HP stopped
Manual
low flow
Insufficient flow rate
error
Temperature range between HP
inlet/outlet too large.
Normal operation
Manual
Flow rate detector
defect
Flow rate inlet = 1
and
Hp circulator pump outlet= 0
No HP start-up
= HP stopped and back-up on
(if authorised)
Automatic as soon as
flow rate = 0 and HPCP =
0
Zero flow rate error
Flow rate inlet = 0
HP circulator pump outlet = 1
No HP start-up
Automatic with HP
circulator pump attempts
= 1 every 2 minutes
freq. defro
ERR
De-icing too often
More than 3 de-icing cycles per hour.
HP stopped,
back-up only authorised
Manual
De-icing cycle too long
defect
"De-icing phase too long error"
repeated more than 8 times in 24h.
HP stopped,
back-up only authorised
Manual
De-icing cycle too long
error
After 20 min. de-icing Temp. < 15°C.
Normal operation
Automatic
EVAPO
ERR
De-icing sensor error
De-icing sensor data out of measuring
range.
HP stopped,
back-up only authorised
Automatic after repair
outside
err
Outdoor sensor error
Outdoor sensor data out of measuring
range.
HP air temperature replaces exterior
temperature if the exterior temperature
sensor is unplugged.
Automatic after repair
clock
err
Clock / timer
Operation in
Eco mode. Permanent.
(heating modes ignored)
Manual
memory
err
Memory
Memory defect
HP stopped
and back-up stopped
Replacement of circuit
board /
Manual
Overheating at HRC
Pilot outlet
"Module outlet overheating error"
repeated more than 12 times in 24h.
Both compressors
and back-ups stopped
Manual
Overheating at HRC
Pilot outlet
Outgoing water temp. > 80°C
Temporary stopping
of a compressor and of back-ups
Automatic as soon as
outgoing water temp <
hp output.
ERR
HP outgoing water
temp. sensor defect
HP outgoing water temp. sensor data is
out of measuring range.
HP stopped,
back-up only authorised
Automatic after repair
Overheating defect at
HP water outlet
"HP outlet overheating error"
repeated more than 10 times in 24h.
Both compressors
and back-ups stopped
Manual
Overheating error at HP
water outlet
HP outgoing water temp. > 75°C
Temporary stopping
of both compressors and of back-ups
Automatic as soon as
outgoing water temp <
hp input
ERR
HP incoming water
temperature sensor
HP incoming water temp. sensor out of
measuring range.
HP stopped,
back-up only authorised
Automatic after repair
Prob comp1
Compressor 1 power
supply defect
Error at start-up, electrical network not
appropriate, insufficient voltage,
progressive starter defect.
Compressor 1 is stopped.
The Heat Pump will attempt to start the
compressor every hour.
Manual after normal
operation has resumed
Prob comp2
Compressor 2 power
supply defect
Error at start-up, electrical network not
appropriate, insufficient voltage,
progressive starter defect.
Compressor 2 is stopped.
The Heat Pump will attempt to start the
compressor every hour.
Manual after normal
operation has resumed
STARTER 1
ERR
Progressive starter 1
defect
Error at start-up, electrical network not
appropriate, insufficient voltage,
progressive starter defect.
Compressor 1 is stopped.
The Heat Pump will attempt to start the
compressor every 20 minutes.
Manual
STARTER 2
ERR
Progressive starter 2
defect
Error at start-up, electrical network not
appropriate, insufficient voltage,
progressive starter defect.
Compressor 2 is stopped.
The Heat Pump will attempt to start the
compressor every hour.
Manual
evap. Senso
Evaporator sensor data
illogical
The values read by the air and
evaporator sensors are not coherent
when a compressor is working. .
Display of error, the Heat Pump
continues to work.
Manual after normal
operation has resumed
Pilot
err
Outgoing water temp.
sensor defect
Outgoing water temp sensor data is out
of measuring range.
Back-up stopped
Automatic after repair
swim. pool
err
Swimming pool sensor
defect
The swimming pool sensor has a weak
ohmic value.
No heating request for swimming pool.
Automatic after repair
out senso
ERR
Outdoor sensor
positioning error
ot
Temperature for heating curve
= (Air tempExterior)/2
Automatic
pressure
err
Pressure sensor defect
Pressure gauge is disconnected or
defective.
Both HP and back-up stopped.
Automatic after repair
pressure
0.2
Insufficient water
pressure
Pressure measured by pressure gauge <
0,3 bar
Both compressors and back-ups stopped
and
the circulator pumps after 2 minutes.
Automatic as soon as
pressure > 0,5 bar
cuto. hpre1
HP1 cutout
HP1 pressure switch on
Both compressors stopped
Manual
cuto. hpre2
HP2 cutout
HP2 pressure switch on
Both compressors stopped
Manual
cuto. Lpre
Low pressure error
LP pressure switch on
Both compressors stopped
Automatic when low
pressure switch is off.
Manual after 3 errors in
the same hour.
dhw temp.
ERR
DHW temp. sensor error
(Amb2 input on
electronics board)
Circuit 2 is programmed as a DHW circuit
with DHW sensor and the data readings
from this sensor are out of measuring
range.
No DHW request
Automatic after repair
hp output
76.2
°
C
MODULE
96
°
C
long defro
ERR
When an error must be manually repaired or removed, the tool symbol is displayed.
All errors which stop the appliance from operating are signalled by an alert.
Errors are signalled by the backlighting flashing.
compres
-
1
err
compres
-
2
err
flow detec.
err
Display
Name
Source of defect
Consequence(s)
Repairing and removing
error messages
AIR hp
ERR
Air temperature sensor
defect
HP air temp. sensor data is out of
measuring range.
Target temperature = (max
water temp.+ min water temp )/2
Automatic after repair
AMBIeNCE 1
ERR
Amb1 sensor defect
Attention : the room temperature
sensor with display should be entered
as INT SENSOR for circuit 1 only.
is programmed as SENSOR and the data
displayed is out of measuring range
or
sensor is recognized instead and the
data displayed is out of measuring
range.
Heating request
Automatic after repair
AMBIeNCE 2
ERR
Amb2 sensor defect
Attention: the room temperature
sensor with display should be entered
as INT SENSOR for circuit 1 only.
Circuit 2 is programmed for radiators or
underfloor heating with room
termperature sensor, and the data
displayed is inaccurate.
Heating request
Automatic after repair
BUS
err
BUS
2-core sheathed cable or BUS
connection defect, fuse not working, or
electronic circuit board(s) defect.
HP stopped,
back-up alone authorised
BUS link, replacement
fuse, or replacement of
electronic circuit board(s)
/
Manual
Compressor 1 sensor
defect
Compressor 1 sensor data is out of
measuring range.
Both compressors stopped
and also the fan
Automatic after repair
Compressor 1
temperature defect
"Compressor 1 overheating"
(compressor temperature >115°C)
more than 24 times over 24 hours
Both compressors stopped
Manual
Compressor 2 sensor
defect
Compressor 2 sensor data is out of
measuring range.
Both compressors stopped
and also the fan
Automatic after repair
Compressor 2
temperature defect
"Compressor 2 overheating"
(compressor temperature >115°C)
more than 24 times over 24 hours
Both compressors stopped
Manual
flow
ERR
Zero flow rate defect
"Zero flow rate" repeated after
8 attempts.
HP stopped
Manual
low flow
Insufficient flow rate
error
Temperature range between HP
inlet/outlet too large.
Normal operation
Manual
Flow rate detector
defect
Flow rate inlet = 1
and
Hp circulator pump outlet= 0
No HP start-up
= HP stopped and back-up on
(if authorised)
Automatic as soon as
flow rate = 0 and HPCP =
0
Zero flow rate error
Flow rate inlet = 0
HP circulator pump outlet = 1
No HP start-up
Automatic with HP
circulator pump attempts
= 1 every 2 minutes
freq. defro
ERR
De-icing too often
More than 3 de-icing cycles per hour.
HP stopped,
back-up only authorised
Manual
De-icing cycle too long
defect
"De-icing phase too long error"
repeated more than 8 times in 24h.
HP stopped,
back-up only authorised
Manual
De-icing cycle too long
error
After 20 min. de-icing Temp. < 15°C.
Normal operation
Automatic
EVAPO
ERR
De-icing sensor error
De-icing sensor data out of measuring
range.
HP stopped,
back-up only authorised
Automatic after repair
outside
err
Outdoor sensor error
Outdoor sensor data out of measuring
range.
HP air temperature replaces exterior
temperature if the exterior temperature
sensor is unplugged.
Automatic after repair
clock
err
Clock / timer
Operation in
Eco mode. Permanent.
(heating modes ignored)
Manual
memory
err
Memory
Memory defect
HP stopped
and back-up stopped
Replacement of circuit
board /
Manual
Overheating at HRC
Pilot outlet
"Module outlet overheating error"
repeated more than 12 times in 24h.
Both compressors
and back-ups stopped
Manual
Overheating at HRC
Pilot outlet
Outgoing water temp. > 80°C
Temporary stopping
of a compressor and of back-ups
Automatic as soon as
outgoing water temp <
hp output.
ERR
HP outgoing water
temp. sensor defect
HP outgoing water temp. sensor data is
out of measuring range.
HP stopped,
back-up only authorised
Automatic after repair
Overheating defect at
HP water outlet
"HP outlet overheating error"
repeated more than 10 times in 24h.
Both compressors
and back-ups stopped
Manual
Overheating error at HP
water outlet
HP outgoing water temp. > 75°C
Temporary stopping
of both compressors and of back-ups
Automatic as soon as
outgoing water temp <
hp input
ERR
HP incoming water
temperature sensor
HP incoming water temp. sensor out of
measuring range.
HP stopped,
back-up only authorised
Automatic after repair
Prob comp1
Compressor 1 power
supply defect
Error at start-up, electrical network not
appropriate, insufficient voltage,
progressive starter defect.
Compressor 1 is stopped.
The Heat Pump will attempt to start the
compressor every hour.
Manual after normal
operation has resumed
Prob comp2
Compressor 2 power
supply defect
Error at start-up, electrical network not
appropriate, insufficient voltage,
progressive starter defect.
Compressor 2 is stopped.
The Heat Pump will attempt to start the
compressor every hour.
Manual after normal
operation has resumed
STARTER 1
ERR
Progressive starter 1
defect
Error at start-up, electrical network not
appropriate, insufficient voltage,
progressive starter defect.
Compressor 1 is stopped.
The Heat Pump will attempt to start the
compressor every 20 minutes.
Manual
STARTER 2
ERR
Progressive starter 2
defect
Error at start-up, electrical network not
appropriate, insufficient voltage,
progressive starter defect.
Compressor 2 is stopped.
The Heat Pump will attempt to start the
compressor every hour.
Manual
evap. Senso
Evaporator sensor data
illogical
The values read by the air and
evaporator sensors are not coherent
when a compressor is working. .
Display of error, the Heat Pump
continues to work.
Manual after normal
operation has resumed
Pilot
err
Outgoing water temp.
sensor defect
Outgoing water temp sensor data is out
of measuring range.
Back-up stopped
Automatic after repair
swim. pool
err
Swimming pool sensor
defect
The swimming pool sensor has a weak
ohmic value.
No heating request for swimming pool.
Automatic after repair
out senso
ERR
Outdoor sensor
positioning error
ot
Temperature for heating curve
= (Air tempExterior)/2
Automatic
pressure
err
Pressure sensor defect
Pressure gauge is disconnected or
defective.
Both HP and back-up stopped.
Automatic after repair
pressure
0.2
Insufficient water
pressure
Pressure measured by pressure gauge <
0,3 bar
Both compressors and back-ups stopped
and
the circulator pumps after 2 minutes.
Automatic as soon as
pressure > 0,5 bar
cuto. hpre1
HP1 cutout
HP1 pressure switch on
Both compressors stopped
Manual
cuto. hpre2
HP2 cutout
HP2 pressure switch on
Both compressors stopped
Manual
cuto. Lpre
Low pressure error
LP pressure switch on
Both compressors stopped
Automatic when low
pressure switch is off.
Manual after 3 errors in
the same hour.
dhw temp.
ERR
DHW temp. sensor error
(Amb2 input on
electronics board)
Circuit 2 is programmed as a DHW circuit
with DHW sensor and the data readings
from this sensor are out of measuring
range.
No DHW request
Automatic after repair
hp output
76.2
°
C
MODULE
96
°
C
long defro
ERR
When an error must be manually repaired or removed, the tool symbol is displayed.
All errors which stop the appliance from operating are signalled by an alert.
Errors are signalled by the backlighting flashing.
compres
-
1
err
compres
-
2
err
flow detec.
err
