Stoelting U421 series Operator's Manual page 35

Error Code (E9)
High Pressure Cutout
Air-Cooled Machines
Is there an air flow
restriction around
the machine?
No
Check for an exterior heat source
from equipment. Examples include:
• Ice Machine
• Grill
• Hot Dog Steamer
Is there an
exterior heat
source?
No
Contact your authorized
Stoelting distributor for
further assistance
513713 REV.0
Move anything blocking
the louvered panels and
make sure there is
Yes
enough air clearance
around the machine.
Move equipment that
increases the ambient
Yes
temperature away from
the machine.
U421-I2A & U431-I2A OPERATOR'S MANUAL
Section 4: Troubleshooting
E9 Common Causes
• Blocked airfl ow around machine or
dirty air fi lter.
• External heat source
Is the problem
fixed?
No
Is the problem
fixed?
No
Yes
Yes
Continue normal operation.
35