3M 247 Troubleshooting, Cause, Cause, Cause, Cause, Solution, Solution, Solution, Solution, Condition, Condition, Condition, Condition

Check the 3MTM RangerTM system website to ensure you have the most recent version of this document.

www.rangerfluidwarming.com reorder #202456B

English	3MTM RangerTM Irrigation Fluid Warming System

Troubleshooting

Condition	Cause
Nothing illuminates on the	• Unit is not turned on, plugged
warming unit panel.	in, or power cord is not plugged
	into an appropriate outlet.
	• Unit failure.

Solution

•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.

•Call 3M Patient Warming technical support.

Condition

Alert indicator illuminates and alert sounds, alpha-numeric display alternately flashes a temperature of 48°C or higher and the word “HI.”

Cause

Temporary over-temperature condition because:

•An extreme change in flow rates occurred (e.g., from

500 ml/min to stop flow).

•Unit was turned on and reached set point temperature before warming cassette was inserted.

•Fluids were prewarmed to above 42°C before being run through the warming unit.

Solution

•Open flow to reduce temperature. Alerts will stop when the temperature drops below 48°C. The unit is ready to use.

•Alerts will stop when the temperature drops below 48°C. The unit is ready to use.

•Turn off unit and unplug it. Discontinue infusion of fluids. Do not warm fluids before infusing them through the Ranger irrigation fluid warming unit.

Condition	Cause	Solution
Alert sounds, alpha-numeric display	Primary controller failure.	Power to heating plates will shut off
and alert indicator light go dark.	Unit will no longer operate.	if temperature rises to 50°C. Turn
		unit off 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
Unit alerts soon after plugging it	Test screw on bottom of
in (unit does not have to be turned	unit is loose or missing.
on for this condition to occur).
Heater temperature rises to 50°C and
unit shuts down soon after plugging
it in (unit does not have to be turned
on for this condition to occur).

Solution

Make sure test screw is completely tightened. If it is missing, turn unit off and unplug it. Call 3M Patient Warming technical support.