Groen CC20-E Operator's Manual page 198

(Revised 1/02)
COOL -
This service message will be displayed during Fast Cool operation as
described in the Operating Manual.
Prior to Serial Number GC7243MS and C7439MS
041990 A - This message will be displayed in the Time display window and in
b - the Temperature display window. This is the EPROM code of the con-
trol panel. 0419 will appear in the Time display window, and 90
(space) A will appear in the Temperature display window. After
approximately 2-seconds, the letter "A" will be replaced by the letter
"b".
After Serial Number GC7243MS and C7439MS
112955 L CC10E - This message will be displayed in the Time display window and
112956 L CC20E in the Temperature display window. This is the EPROM part
112957 G CC10G number and revision level letter. Revision level can change.
& CC20G
DONE - This message will appear when a t-CAL (old electronics only) or AL
procedure is successfully completed. Also after serial number GC
7243MS and GC7439MS F or C is successfully completed.
Combination Codes (Prior to Serial Number GC7243MS and C7439MS)
Any combination of service codes could appear in the Time and Cook Temperature
windows. A common combination code occurrence is Code 1 and 2.
Old Electronics
The procedure for troubleshooting a Code 1 and 2 problem is given below. To trou-
bleshoot any other code combinations, go to the troubleshooting procedure for the
lowest service code number displayed and proceed through its troubleshooting
table. If service codes are still displayed, proceed to the next higher service code
number and so forth until no error codes are displayed.
Service codes are displayed in numerical sequence. They do not necessarily indi-
cate the sequence in which the problems occurred.
When codes 1 and 2 are displayed simultaneously,
If codes 1 and 2 appear simultaneously, operate oven in Steam mode and observe
boiler fill.
If boiler fills with water and begins heating, the problem is either in the water tem-
perature probe circuit or the control panel requires calibration.
If boiler does not fill with water, but water heating elements (electric units) or boil-
er burners (gas units) turn on, disconnect both water level probe wires, and re-start
steam mode. If boiler fills or overfills, the problem could be in the water level
probes circuit. If boiler still does not fill, replace relay board (see page 8-22).
After Serial Number GC7243MS and C7439MS
To troubleshoot any code combination, go to the Trouble Shooting Procedure for
the lower service code displayed and proceed through its table. Proceed to the
next higher code and so forth.
Codes will be displayed in the order they occured. The same number may appear
more than once.
WARNING
the unit may have dry fired.
SERVICE CODES
6-3