Groen CC20-E Operator's Manual page 247

Maintenance
Control Panel Calibration Check
Calibration Check (continued)
11. Set the calibration box dial at 100°F. When the temperature displayed in
the Time window equals the calibration box setting, press the timer
START touch pad. C 150 will be displayed in the Time window.
Correct calibration requires that the oven be calibrated in 50-degree
increments between 100°F and 600°F.
12. Follow the same routine as in steps 10 and 11 for the following
temperatures. Remember, after pressing the START touch pad, the
displayed temperature will be 50° higher than the calibration box setting.
50°F
100°F
150°F
200°F
After 600° has been set, service codes 5 and 6 may appear in the Time
display window. This is a normal condition.
Be sure oven power is turned off and the oven is disconnected
from the branch circuit before disconnecting the calibration box.
13. Turn off oven power and disconnect oven from the branch circuit.
14. Disconnect calibration box from the control panel, and connect the air,
drain and boiler probe wires to the control panel circuit board. Refer to
the label near the relay board bracket for making correct wire
connections.
15. Install the right side panel.
16. Connect the oven to the branch circuit. If the Time window
displays any service codes, press the CLEAR touch pad.
17. Reset the oven as follows:
A. Check that the oven is turned off by pressing the ON touch pad.
B. While pressing the COMBO touch pad, press the ON touch pad.
If no errors are present, the oven will beep and show 00:00 in the
Time display window. If any errors are found, the unit will not beep,
and service codes will appear in the Time and Cook temperature
windows. Note which codes appear, then press the CLEAR touch pad
to exit the service mode.
C. Reset again by pressing and holding the COMBO touch pad,
then pressing the ON touch pad. No service codes should appear.
If service codes do appear, proceed to the Service Codes section
of this manual.
D. Press the CLEAR touch pad for at least 2-seconds. The oven
is now ready for operation.
8-2
IMPORTANT
250°F 450°F
300°F 500°F
350°F 550°F
400°F 600°F
WARNING
(Revised 1/02)