3M 245, 247 Troubleshooting

Check the 3MTM RangerTM system website to ensure you have the most recent version of this document. www.rangerfluidwarming.com reorder #202524A

English 3MTM RangerTM Blood/Fluid and Irrigation Warming Systems

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.

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.

CONDITION

Alert indicator illuminates and

alert sounds, alphanumeric display alternately flashes a temperature of 43˚C for the Model 245 (48°C for the Model 247) or higher and the word “HI.”

• Unit failure.

CAUSE

Temporary over-temperature condition because:

•An extreme change in flow rates occurred (e.g., from 500 mL/min to stop flow).

•Check fuses.

•Call 3M Patient Warming technical support.

SOLUTION

•Open flow to reduce temperature. Alerts will stop when the display reads 41°C. The unit is ready to use.

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

•Fluids were prewarmed to above

42°C before being run through the warming unit.

•Alerts will stop when the display reads 41°C. The unit is ready to use.

•Turn off unit. Discontinue infusion of fluids. Do not warm fluids before infusing them through the Ranger warming unit.

CONDITION	CAUSE	SOLUTION
Alert sounds, alphanumeric	Primary controller failure. Unit	Power to heating plates will shut
display and alert indicator light	will no longer operate.	off if temperature rises to 44°C for
go dark.		the Model 245 (50°C for the Model
		247). Turn unit off and unplug it.
		Discontinue use of unit. Discard
		warming set. Alert will continue
		to sound if you do not unplug unit.
		Call 3M Patient Warming technical
		support.

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