Ranger 245 Service Manual

Initial Equipment Check
ñ Make sure the Ranger unit’s power cord is plugged into the unit.
ñ When checking for grounding, clamp to the screw threads on the unit’s I.V. pole
clamp or the equipotential stud on the rear of unit. Clamp should be tightened
securely.
ñ Sometime during shipping, this unit may have been exposed to extreme
temperatures. The unit may need a period of 20 minutes or more to return to
normal operating temperature. Store the Ranger unit at room temperature,
allowing it to equilibrate, before using or testing the unit.
Service Manual
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Model 247
Irrigation Warming System
Not for I.V. Use
Model 245
Blood/Fluid Warming System
For I.V. Use
®
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Fluid Warming SystemFluid Warming System
Check the Ranger system website to ensure you have the most recent version of this document. www.rangerfluidwarming.com reorder #247021A

Ranger 245 Specifications

General

Brand	Ranger
Model	245
Category	Food Warmer
Language	English

Summary

Initial Equipment Check

Technical Service and Order Placement

Technical Service Contacts

In-warranty Repair and Exchange Process

Introduction to Ranger Warming Systems

Critical Warnings and Precautions

Critical safety information including hazards and necessary precautions during operation.

Maintenance and Storage Guidelines

Servicing Information and Support

Model 245 Preventative Maintenance Checklist

Model 245 Test Setup

Model 245 Operating Temperature Test

Procedure to test the operating temperature of the Model 245 unit.

Model 245 Over-temperature Alarm Test

Procedure to test the 43°C and 46°C over-temperature alarm points for Model 245.

Model 247 Preventative Maintenance Checklist

Model 247 Test Setup

Model 247 Operating Temperature Test

Procedure to test the operating temperature of the Model 247 unit.

Model 247 Over-temperature Alarm Test

Procedure to test the 48°C and 50°C over-temperature alarm points for Model 247.

Replacing the Power Fuse

Fuse Replacement Tools and Method

Troubleshooting Common Issues

No Panel Illumination Troubleshooting

Troubleshooting steps when the warming unit panel shows no lights.

Over-Temperature Alarm Troubleshooting

Resolving alarms related to over-temperature conditions (43°C/48°C).

Alarm and Display Failure Troubleshooting

Unit Alarms on Plug-in Troubleshooting

Diagnosing alarms that occur immediately after plugging in the unit.

Alarm After Unit Off Troubleshooting

Cassette Removal Troubleshooting

Under-Temperature Alarm Troubleshooting

Resolving alarms related to under-temperature conditions (33°C).

Display Error Code Troubleshooting

System Specifications