TECHNICAL MANUAL
P/N 703073 Rev C
CoolSystems, Inc. – Confidential & Proprietary
Page 41 of 43
Error / Problem
Possible Causes
Action
Hose, or try replacing the O-rings on the
Control Unit. Reference O-Ring replacement
in the Maintenance / Repair section.
Wrap “not getting cold”
Not enough ice in the Ice Box
Make sure the Unit has both sufficient ice and
water in the system.
Temperature set too warm
Check the temperature control knob for the
proper setting. 3 snowflakes = coldest setting.
Wrap is partially kinked - If flow is
limited, the water will not flow quick
enough to provide even cooling thru
the Wrap.
Disconnect the Hose from the Wrap to allow
the air to vent and re-apply the Wrap more
snugly and ensure there are no kinks in the
Wrap.
If this doesn’t work, try using on a lower
pressure setting.
You can monitor return flow into the ice box
to estimate the flow rate. When set to Full
cold, if you notice a difference in flow rate
between a Wrap lying flat on the table, and
applied to the user, you may need to adjust
the Wrap per above.
Only one Wrap getting
cold when using a dual
Hose
If there is a kink in one Wrap when
using a dual Hose, most or all of the
flow may go thru the other Wrap.
Disconnect the Hose from the kinked Wrap to
allow the air to vent and re-apply the Wrap
more snugly and ensure there are no kinks in
the Wrap.
If this doesn’t work, try using on a lower
pressure setting.
The lid won’t open
Sometimes pumping water from the
ice box into a Wrap can cause a slight
vacuum which makes it difficult to
open the Control Unit lid.
Press the door release button and pull up
firmly, and the door should release. If needed,
stop treatment and allow water to drain back
into the Control Unit.
Lid won’t stay closed
Door latch may be broken
Replace the door – reference the Door
Replacement procedure in the Maintenance /
Repair section.
The unit fails the
“Pressure Verification”
test described in the
“Calibration /
Verification” section.
Pressure is set to the wrong setting
Double check the pressure setting on the
Control unit.
Not monitoring pressure at the proper
time in the pressure cycle.
It may take longer than 2 minutes to reach the
top of the pressure ramp, particularly on the
first pressure cycle. You can tell the Control
Unit has reached the top of the pressure cycle
once the solenoid clicks open.
Pressure is “spikey”
There may be momentary pressure spikes
when the air pump turns on. These are
typically transient, and not felt by the user and
are considered normal. Read the pressure
gauge once the pressure spike settles.
Pressure sensor needs re-zeroing
Disconnect the Hose from the Control Unit or
the Wrap from the Hose and restart the
Control Unit. This will check for a zero offset
error and re-zero the pressure sensor if the
CoolSystems
Inc.,
Effective
Date:
12/23/14
