GeneChip
™
Hybridization Oven 645 User Guide
21
Chapter 1
The Hybridization Oven 645
Communicating with the oven
1
Error codes and
troubleshooting
Note that the oven contains no user repairable parts. Only qualified field service
engineers should open any panels on the oven. Do not attempt to repair the oven
yourself.
In cases of an internal error or incorrect setup, the oven displays the following error
codes on its front panel. These errors also appear in the response string to a “Query
System Status” command on the RS-232 port (
).
Table 3
Error codes and problems, descriptions and corrective actions
Problem/Error code
Description
Corrective action
E01, E02, E06 or E11
Each of these error codes indicate a
specific failure in the oven temperature
control system.
Discontinue use of the oven and contact
Thermo Fisher Scientific Technical Support
for further assistance.
E12
Failure of the rotisserie rotation drive.
Verify that the rotisserie is not being
blocked from rotating, then contact Thermo
Fisher Scientific Technical Support for
further assistance.
E13
Imbalanced rotisserie load. This error
may be posted if cartridge carriers are
not distributed in a balanced manner on
the rotisserie.
Redistribute the carriers to opposing
locations (i.e., 3 o'clock and 9 o'clock) on
the rotisserie. If the problem persists,
contact Thermo Fisher Scientific Technical
Support.
E22
Communications error.
This error will only occur in case of a syntax
error in a serial port inquiry. It will be posted
in the RS-232 reply and will not appear on
the front panel displays.
No power—oven does not
operate, displays are not
illuminated
Verify that the power cord is plugged into an outlet and into the power receptacle on
the rear of the oven. Verify that the 115/230 switch is set correctly. Verify that the front
panel power switch is on.
Blown fuse
Fuses should blow only in case of misapplied power or a severe internal electrical
failure. If replacing fuses, note that the oven employs double pole fusing. The power
entry module, located on the rear panel of the unit, contains two fuses, one for each
side of the AC power circuit. Replace these only with 5 x 20 mm F6.3A (fast acting)
250V rated fuses, as marked on the rear panel of the oven (See the section,
).
Rotisserie does not turn
Verify that the system is not in PAUSE mode (press the
PAUSE
button to change this
mode) and that the rpm is not set to OFF. Verify that rotisserie rotation is not blocked
by objects inside the oven chamber.
rpm reading is high
This is typically caused by a mildly imbalanced load. Redistribute the carriers to
opposing locations (i.e., 3 o'clock and 9 o'clock) on the rotisserie. More severely
imbalanced loads may cause an “E13” error.
