Potterton SIRIUS THREE FS 70 Installation Manual page 111

Display
40 40:Return sensor 1
46 46:Return sensor
cascade
50 50:HW sensor 1
52 52:HW sensor 2
60 60:Room sensor 1
65 65:Room sensor 2
68 68:Room sensor 3
78 78:Water pressure
sensor
73 73:Collector sensor 1
7609493 - v11 - 18052020
Description of the er­
Probable causes
ror
The return sensor is not correctly
connected
NTC return sensor
The return sensor does not work
The return sensor is not correctly
connected
Cascade return tem­
perature sensor error
The return sensor does not work
The sensor is not correctly connec­
ted to the boiler sensor terminal
block
DHW sensor
The DHW temperature sensor does
not work
The sensor is not correctly connec­
ted to the boiler sensor terminal
block
Solar DHW sensor (if
The return temperature sensor does
incorporating a solar
not work
installation)
The sensor is not correctly connec­
Room temperature
ted to the boiler sensor terminal
sensor 1 error
block
The sensor is not correctly connec­
Room temperature
ted to the boiler sensor terminal
sensor 2 error
block
The sensor is not correctly connec­
Room temperature
ted to the boiler sensor terminal
sensor 3 error
block
The hydraulic pressure sensor is
not connected to the PCB
Hydraulic pressure
sensor error
The hydraulic pressure sensor does
not work
The sensor is not correctly connec­
ted to the boiler sensor terminal
block
Solar collector sensor
(if incorporating a so­
lar installation)
The solar collector sensor does not
work
12 Troubleshooting
Check/Solution
Check that the return sensor has
been correctly connected to the
boiler PCB
Use a suitable multimeter to check
the resistance (Ω) of the sensor ac­
cording to the water temperature
using the "Resistance/Tempera­
ture" correspondence table (10 K
sensor)
Check that the return sensor has
been correctly connected to the
boiler PCB
Use a suitable multimeter to check
the resistance (Ω) of the sensor ac­
cording to the water temperature
using the "Resistance/Tempera­
ture" correspondence table (10 K
sensor)
Check that the sensor has been
correctly connected to the boiler
sensor terminal block
Use a suitable multimeter to check
the resistance (Ω) of the sensor ac­
cording to the room temperature
using the "Resistance/Tempera­
ture" correspondence table (10 K
sensor)
Check that the sensor has been
correctly connected to the boiler
sensor terminal block.
Use a suitable multimeter to check
the resistance (Ω) of the sensor ac­
cording to the room temperature
using the "Resistance/Tempera­
ture" correspondence table
(PT 1000 sensor)
Check that the room sensor has
been correctly connected to the
boiler sensor terminal block
Check that the room sensor has
been correctly connected to the
boiler sensor terminal block
Check that the room sensor has
been correctly connected to the
boiler sensor terminal block
Check that the connectors between
the sensor and the PCB are cor­
rectly connected
Replace the hydraulic pressure
sensor. Please note that this action
requires the boiler to be drained
Check that the sensor has been
correctly connected to the boiler
sensor terminal block
Use a suitable multimeter to check
the resistance (Ω) of the sensor ac­
cording to the room temperature
using the "Resistance/Tempera­
ture" correspondence table
(PT 1000 sensor)
111