BIO RAD PTC-200 Operation Manual page 95

DNA Engine Operations Manual
Error Message
HS Sensor Fault, Alt
Control Mode
HS Sensor Fault, Left
Ignored.
HS Sensor Fault, Right
Ignored.
Internal Fan Fault,
Return for Service
Lid Sensor Fault,
Lid Was Disabled.
L/R Power Imbalance
Memory Is Corrupt!
No Memory
Available!
Probe Sensor Fault,
Used Calc Control
11-4 Tech Support: 1-800-4BIORAD • 1-800-424-6723 • www.bio-rad.com
Cause and Result
Alpha unit heat sink sensor is not
functioning properly, so machine
has begun estimating heat sink
temperature based on other tem-
perature sensor readings.
Same as previous
Same as previous
Fan inside base is not working, so
Alpha unit has been shut down.
Heated lid is giving unexpected
temperature readings, so base has
turned it off. Protocols can still be
run, but reactions may fail because
of condensation in vessels.
Thermoelectric units in Alpha unit
block are not heating uniformly, so
machine begins delivering equal
power to all heating elements.
Protocols may still be run, but
reactions may fail due to uneven
block temperatures.
Rarely seen message indicating
that memory has been corrupted
by a static shock or other unusual
electronic incident.
All available memory has been
filled.
Either probe sensor is not working
properly or a probe-control pro-
tocol was run without probe being
installed. Machine has switched
temperature control method to
calculated control.
Action
Alpha unit needs servicing soon.
Contact Bio-Rad or your local dis-
tributor.
Same as previous
Same as previous
Fan must be repaired. Contact
Bio-Rad or your local distributor.
Alpha unit needs servicing soon.
Contact Bio-Rad or your local dis-
tributor.
Alpha unit needs servicing soon.
Contact Bio-Rad or your local
distributor.
Base needs servicing. Contact
Bio-Rad or your local distributor.
Delete unused protocols and
folders from memory. Reduce size
of stored programs by using GoTo
and the Inc and Ext options (see
chapter 6).
Make sure probe is installed when
running probe-control programs. If
error message persists, replace
probe.