A.O. Smith SGS - 100 Installation & Service Manual page 80

Code + Description Cause
S07 (blocking error) Sensor is not (correctly)
connected
Open circuit from
temperature sensor S2
Damaged cable or
at bottom of tank
defective sensor
S08 (blocking error) Sensor is not (correctly)
connected
Open circuit from
temperature sensor S1
Damaged cable or
in the collector
defective sensor
S11 (blocking error) Short circuit in sensor
circuit
Short circuit in the
temp. sensor T2 at the
bottom of the tank
S12 (blocking error) Short circuit in sensor
circuit
Short circuit in sensor 1
of temperature sensor
T at the top of the
1
(1)
tank
S13 (blocking error) Short circuit in sensor
circuit
Short circuit in sensor 2
of temperature sensor
T1 at the top of the
(1)
tank
S14 (blocking error) Short circuit in sensor
circuit
Short circuit from
dummy 1
S15 (blocking error) Short circuit in sensor
circuit
Short circuit from
dummy 2
Instruction manual SGS
Solution
Connect the sensor lead to J14 (port 2 and 4) of the solar controller See the SGS electrical diagram
Replace the sensor
Connect the sensor lead to J13 (port 2 and 4) of the solar controller See the SGS electrical diagram
Replace the sensor
Replace sensor T
2
Replace sensor T
1
Replace sensor T
1
(2)
Replace the dummy sensor
(2)
Replace the dummy sensor
Remark
(17 "Appendices")
To replace the necessary parts, you must contact your installation
engineer
(17 "Appendices")
To replace the necessary parts, you must contact your installation
engineer
To replace the necessary parts, you must contact your installation
engineer
To replace the necessary parts, you must contact your installation
engineer
To replace the necessary parts, you must contact your installation
engineer
To replace the necessary parts, you must contact your installation
engineer
To replace the necessary parts, you must contact your installation
engineer
is
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