57NIBE BA-SVM 10-200
Alarm 33-38 – sensor fault
Fault-tracing in accessory card.
Is the actual sensor correctly
connected?
Are the characteristics for the
sensor OK, measured over the
sensor on the accessory card
(AA5)? (See „Data for
Temperature sensor” section.)
Are the sensor features OK,
measured from the connected
sensor cable in the accessory card
(AA5)? (See „Temperature
sensor” section.)
Is the output voltage from the card
correct? (See „Data for
temperature sensor” section.)
Defective base card (AA2).
Replace.
Check wiring and switches.
Check wiring and switches.
Defective sensor. Replace.
Action.
NO
NO
NO
NO
YES
YES
YES
YES
Section 7 | Troubleshooting