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Release R.1.3 UK 73
Warning
Maintenance may only be performed by a qualified service and maintenance engineer.
Table 10.2 Displayed errors (Sheet 1 of 10)
Code + Description Possible cause Solution Remark
S01 (blocking error)
Open circuit from
temperature sensor T
2
at bottom of tank.
Sensor is not
(correctly) connected.
Connect the sensor lead to JP3. See appendix ’A.2 Electrical diagram BFC’.
Damaged wiring or
defective sensor.
Replace the sensor. To replace the necessary parts, you must contact your installer.
S02 (blocking error)
Open circuit from
sensor 1 of
temperature sensor T
1
at the top of the tank
(1)
.
Sensor is not
(correctly) connected.
Connect the sensor lead to JP5. See appendix ’A.2 Electrical diagram BFC’.
Damaged wiring or
defective sensor.
Replace sensor T
1
. To replace the necessary parts, you must contact your installer.
S03 (blocking error)
Open circuit from
sensor 2 of
temperature sensor T
1
at the top of the tank
(1)
.
Sensor is not
(correctly) connected.
Connect the sensor lead to JP5. See appendix ’A.2 Electrical diagram BFC’.
Damaged wiring or
defective sensor.
Replace sensor T
1
. To replace the necessary parts, you must contact your installer.
S04 (blocking error)
Open circuit from
dummy 1.
Dummy is not
(correctly) connected.
Connect the dummy sensor lead
(2)
to JP4. See appendix ’A.2 Electrical diagram BFC’.
Defective dummy. Replace the dummy sensor. To replace the necessary parts, you must contact your installer.
S05 (blocking error)
Open circuit from
dummy 2.
Dummy is not
(correctly) connected.
Connect the dummy sensor lead
(3)
to JP4. See appendix ’A.2 Electrical diagram BFC’.
Defective dummy. Replace the dummy sensor. To replace the necessary parts, you must contact your installer.
S11 (blocking error)
Short circuit from the
temp. sensor T
2
at the
bottom of the tank.
Short circuit in the
sensor circuit.
Replace sensor T
2
. To replace the necessary parts, you must contact your installer.