Wolf CT15I Technical & Service Manual page 28

Troubleshooting Guide
DIAGNOSTIC MODE
Diagnostic mode allows the Service Technician to determine the cause of the failure. In diagnos-
tic mode only the last error code is displayed.
To initiate diagnostic mode, the unit must to be in the "LOCK" mode. Then, press and hold the
universal "OFF" keypad for 5 seconds. The cooktop controls will now enter into diagnostic
Mode.
In diagnostics mode, zone LED bars will illuminate and display the last error code logged.
NOTE: If no errors were recorded, no LED's will be illuminated. Unit will beep, and return to
"OFF" mode.
NOTE: If the "OFF" keypad is not released after 7 seconds, the diagnostic mode will be can-
celled and the unit will return to the "OFF" mode.
NOTE: If any other input signals are detected from the keypad, the unit will not enter diagnostic
mode.
NOTE: When in diagnostic mode all heating units are off.
NOTE: The unit will exit diagnostic mode if no
inputs are detected from the keypad in 20 sec-
onds.
NOTE: If the "OFF" keypad is pressed again
anywhere within the diagnostic program, the
unit returns to the "LOCK" mode of operation.
NOTE: There will be no audible signals dur-
ing the diagnostic mode.
INTERPRETING HEX DECIMAL CODE
The zone bar light uses the first four LED's
from the right (LED 16), to left (LED 1), to dis-
play the HEX DECIMAL code used to deter-
mine the error code. Each LED has a corre-
sponding numeric value that needs to be
added together to determine the correspon-
ding error code. (See Figure 5.1)
When the sum of the corresponding numeric
value of the illuminated LED totals 10 - 13,
then a letter is assigned in placed of that sum.
Example: 10 = A; 11 = B; 12 = C; 13 = D.
NOTE: The troubleshooting guide list the cor-
responding illuminated LED's.
(See Figure 5.2)
NOTE: Error code may appear in either dis-
play or both simultaneously.
I I n n d d u u c c t t i i o o n n C C o o o o k k t t o o p p
4
8
1
2
4
8
MELT
4
8
1
2
4
8
MELT
0 = LED OFF
1 = LED ON
Example above indicates 0011. Add
cooresponding numbers together
(2 + 1 = 3). 3 means F3 (Error 3)
Figure 5.1. Example of Error Code F3.
5-2
1 8
2 4
2
1
8
-
+
4
2
1
HIGH
OFF/ON
1 8
2
4
2
1
8
-
+
4
2
1
HIGH
OFF/ON
OFF