Puff - How do you solve the error message “A10 chamber probe alarm”?

A10 Cabinet probe error warn about malfunction of chamber probe SC. 
As consequence unit stop any activity and show the message. 

This message requires the intervention of an authorized technician; causes of the fault must be investigated as per prescriptions.

Description

I/O PCB detect probe signal on inlets 7 and 8 (+) in case circuit is open or in short circuit error will occur.

Warning

Probes ar K type and generate a direct voltage so will be foundamental observe right polarity when connecting. 
In case of emergency, if part is not available, possible to replace with probe SB deactivating the boiler and water pressure switch PC from oven model menu.

Reset

Error reset automatically when probe is properly connected.

Checks

Perform following checks: 
- Check all other probes; if all defective change I/O PCB. 
- Check SC and his cabling if needed replace it - Check probe with multimeter in ohm for closed circuit