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3M
TM
Ranger
TM
Irrigation Fluid Warming System
English
10
Check the 3M
TM
Ranger
TM
system website to ensure you have the most recent version of this document. www.rangerfluidwarming.com reorder #202456B
Troubleshooting
Condition Cause Solution
Nothing illuminates on the
warming unit panel.
•Unit is not turned on, plugged
in, or power cord is not plugged
into an appropriate outlet.
•Turn unit on. Make sure the power
cord is plugged into the power entry
module of the warming unit. Make
sure the warming unit is plugged
into a properly grounded outlet.
•Unit failure. •Call 3M Patient Warming
technical support.
Condition Cause Solution
Alert indicator illuminates and
alert sounds, alpha-numeric display
alternately ashes a temperature of
48°C or higher and the word “HI.”
Temporary over-temperature
condition because:
•An extreme change in ow
rates occurred (e.g., from
500 ml/min to stop ow).
•Open ow to reduce temperature.
Alerts will stop when the
temperature drops below 48°C.
e unit is ready to use.
•Unit was turned on and reached
set point temperature before
warming cassette was inserted.
•Alerts will stop when the
temperature drops below 48°C.
e unit is ready to use.
•Fluids were prewarmed to
above 42°C before being run
through the warming unit.
•Turn o unit and unplug it.
Discontinue infusion of uids.
Do not warm uids before
infusing them through the Ranger
irrigation uid warming unit.
Condition Cause Solution
Alert
sounds, alpha-numeric display
and
alert
indicator light go dark.
Primary controller failure.
Unit will no longer operate.
Power to heating plates will shut o
if temperature rises to 50°C. Turn
unit o and unplug it. Discontinue
use of unit. Discard disposable set.
Alert
will continue to sound if you
do not unplug unit. Call 3M Patient
Warming technical support.
Condition Cause Solution
Unit
alerts
soon aer plugging it
in (unit does not have to be turned
on for this condition to occur).
Heater temperature rises to 50°C and
unit shuts down soon aer plugging
it in (unit does not have to be turned
on for this condition to occur).
Test screw on bottom of
unit is loose or missing.
Make sure test screw is completely
tightened. If it is missing, turn unit
o and unplug it. Call 3M Patient
Warming technical support.