Waukesha Cherry-Burrell
Troubleshooting
11/2012
95-03057
Page 79
Troubleshooting
PROBLEM
POSSIBLE CAUSE
SUGGESTED ACTION
Freeze-up.
Power failure.
Check power supply.
Product outlet temperature
too low.
Adjust process to raise product outlet
temperature.
Product flow rate too low.
Adjust process to increase product
flow. Check that pump is matched to
process.
Product ran out of supply tank
prematurely.
Adjust supply to prevent supply lines
from running dry.
Incorrect start-shutdown
procedure.
Refer to “Startup Procedure” on
page 35.
Heat transfer not at expected
level.
Process not set correctly.
Check current process to system
specs at time of installation.
Product pressure lower than
steam pressure in jacket.
Utilize back valve to assure that
system pressure is at a minimum of
10 psi (0.7 bar) above the media
pressure.
Oil in system.
Check and drain oil regularly from
accumulator and other oil separators,
oil legs or pots in refrigeration system.
Steam on jacket super
heated.
Use only dry and saturated steam.
Oil deposits on transfer tube.
Remove heat transfer tube and clean
any deposits on tube. Add filter
system to remove impurities from
cooling agents.
Liquid flow rate on jacket too
low.
Use jacket recycle loop at a flow of 50
GPM.
One or several system valves
or floats not functioning
properly.
Inspect and test system valves and
floats as indicated in “Preventive
Maintenance” on page 41. Replace as
necessary.
Water and air in cooling
system.
See “Water and Air in Refrigeration
System” on page 82.
Tube Scoring.
Temperature extremes.
Replace tube if scoring becomes
great. Refer to “Care of Heat
Exchanger Tube” on page 43.
Lower back pressure required
to achieve desired refrigerant
temperatures.
System operating at a high
vacuum causing water in
refrigeration system.
Refer to “Water and Air in
Refrigeration System” on page 82.
Increased compressor head
pressure.
Air in refrigeration system.
Refer to “Water and Air in
Refrigeration System” on page 82.
