Rational SCC Series, Training Manual

Page: 171 / 200

171
Trouble shooting SCC
Edition 10-2008a
Buzzer sounds
Reason: Any thermocouple is defective
Different buzzer intervals depending which thermocouple is defective
Buzzer sounds for 30 seconds
after fault identi cation and every
time unit is switched on
YES
Indication Service 20?
Interior cabinet sensor B1
defective unit out of order
Change defective thermocouple
NO
NO
Check which ther-
mocouple shows actual
values > 654°C,
This indicates, that the corre-
sponding „Thermocouple is
broken“
Check connector of the thermo-
couple for suf cient contact
NO
Indication
CT probe defect?
Indication
Service 31.1 up to 31.6?
- More than 3 measuring points of the
probe are defective.
- SCC program‘s and manual
cooking program‘s with core
temperature can not be used
- Less than 3 measuring points of the
probe are defective
- SCC program‘s and manual
cooking program‘s with core
temperature are running on
emergency control
Activate diagnostic program
Step 1 - 11
YES
NO
YES
YES
Buzzer frequency by failure of thermocouple
(counting in 5 sec.)
B1 12 in 5 sec.
B2 6 in 5 sec.
B4 5 in 5 sec.
B5 8 in 5 sec.
Core temperature sensor 20 in 5 sec.