ResMed Comprehensive Troubleshooting and Service Guide for Devices
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Servicing

CAUTION

Inspection and repair should only be performed by an authorised agent. Under no circumstances should you attempt to open, service or repair the device yourself.

This product should be inspected by an authorised ResMed service centre five years from the date of manufacture, except for the internal battery which ResMed recommends be tested after two years to assess the battery life. Prior to this, the device is intended to provide safe and reliable operation provided that it is operated and maintained in accordance with the instructions provided by ResMed. Applicable ResMed warranty details are provided with the device at the time of original supply. Of course, as with all electrical devices, if any irregularity becomes apparent, you should exercise caution and have the device inspected by an authorised ResMed service centre.

Troubleshooting

If there is a problem, try the following suggestions. If a problem cannot be solved, contact ResMed.

Alarm troubleshooting

The most common reason for an alarm to sound is because the system has not been properly assembled. Check that the air tubing has been properly attached to the device and patient interface (and humidifier if used).

Notes:

•The alarm log and alarm settings are maintained when the device is powered down and in the event of a power loss.

•If multiple alarms are active simultaneously, the alarm with the highest priority will be displayed first.

•If an alarm activates repeatedly, discontinue use and return the device for servicing.

Problem / possible cause

Action

 

 

LCD: Internal Battery Empty!

The remaining battery charge is below 15%. The device can be powered by the internal battery for maximum 2 minutes.

Connect the device to mains power. Note: In case of a total power failure, the therapy settings will be stored and therapy will resume when the device is powered again.

LCD: System Failure!

Component failure.

The device stops delivering air pressure (system failure 6, 7, 9, 22, 38). Therapy cannot be started (system failure 21).

1.Power-off the device.

2.Power-on the device again.

Component failure (system failure 8, 25).

1.

Power-off the device.

 

2.

Power-on the device again.

LCD: Over Pressure!

The device generates a pressure that is greater than 59 cm H2O. Treatment will be stopped.

1.Power-off the device.

2.Check that the air tubing is connected properly.

3.Power-on the device again.

4.Start Learn Circuit function.

Note: If the alarm activates repeatedly internal components may be defective. Discontinue use and return the device for servicing.

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Contents Stellar User GuideRespiratory Care Solutions Making quality of care easy Contents Data management Cleaning and maintenance Contraindications IntroductionIndications for use Adverse effectsStellar at a glance Humidification Internal batteryPatient interface ResMed USB stickMobile use Setting up for noninvasive useRemote Alarm Setting up for invasive use Attaching the H4i heated humidifier for noninvasive useHmef Adding supplemental oxygen Working with other optional accessoriesAttaching the pulse oximeter Using the FiO2 monitoring sensor Starting therapy using oxygenStopping therapy using oxygen Connecting a sensor Attaching an antibacterial filterStellar basics About the control panelPerforming a functional test Starting therapyLCD screen Starting therapy Stopping therapyTurning off the power Working with alarmsTailoring treatment setup options Using mask-fitUsing the menus Setup menu Alarm Settings Alarm Volume Setup menuSetup menu Clinical Settings Mask Type Setup menu OptionsOptions On, Auto Setup menu Configuration MenuParameter Description Used Hours Info menuEvent Summary Device InformationDaily Cleaning and maintenanceData management Replacing the air filter WeeklyMonthly Disinfection Multipatient useServicing TroubleshootingAlarm troubleshooting LCD High Pressure Problem / possible cause Action LCD Blocked TubeLCD High Temperature 10, 11, 12 LCD Low PressureLCD Internal Battery Use Problem / possible cause Action LCD Non-Vented MaskLCD Internal Battery Low LCD ApnoeaOther troubleshooting Learn Circuit failed Problem / possible cause SolutionDevice does not stop when you remove your mask USB stick is not readable or writeableTechnical specifications Supply isolated Internal Battery Power supplyExternal DC Power Housing constructionEnglish Vrms Symbols General warnings and cautions Mask should never be blockedGeneral warnings and cautions Limited warranty Product Warranty periodRespiratory Care Solutions Making quality of care easy EUR1
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