BIO RAD PTC-200 Operation Manual page 99

DNA Engine Operations Manual
Problems Related to Environmental Conditions, Setup, and
Maintenance
Problem
Frequent shutdowns
due to overheating.
Frequent "Slow Block
Cycling," and "HS
Overheating" error
messages.
Dust and debris clog-
ging up air intake vents.
11-8 Tech Support: 1-800-4BIORAD • 1-800-424-6723 • www.bio-rad.com
Cause
Machine is not receiving enough
air.
Air flowing into vents is not
<31°C.
Failure to regularly check for
buildup.
Action
Make sure air intake vents ar not
obstructed by dust, debris, or
paper. Remove light collections of
dust and debris with damp cloth.
Vacuum out heavy collections.
Remove any papers placed under
the machine at least 10cm from
vertical surfaces.
Check temperature of air entering
air intake vents, following procedure
on p. 3-3. If higher than 31°C, use
table 3-1 to troubleshoot and
remove cause / s.
Remove light collections damp
cloth. Vacuum out heavy
collections.