DeVilbiss 306DS Service Manual download pdf (Page 10)

LT-2044

SYMPTOM POSSIBLE CAUSE REMEDY

DC Adapter attached. Unit

operating from Battery or not

operating. External Power

light is not illuminated

1. Poor connection to DC power source.

2. Vehicle power source (vehicle accessory

connector) dropped too low for the DC

Adapter.

3. Fuse in vehicle is blown.

1. Ensure the DC accessory power port outlet is clean and a

good connection can be made. Insert the DC Adapter into

the vehicle’s DC accessory power port outlet.

2. If the vehicle power source drops too low for the DC

Adapter, the iGo will revert to Battery operation (if present)

or will cease operation until power is restored.

3. Check the fuse and replace if necessary.

Audible alert sounds

intermittently when operating

from DC Adapter.

1. Vehicle not running.

2. Poor connection to DC power source.

3. Vehicle electrical system overloaded or

defective.

1. Start vehicle.

2. Ensure the DC accessory power port outlet is clean and a

good connection can be made. Insert the DC Adapter into

the vehicle’s DC accessory power port outlet.

3. Have a qualiﬁed auto technician check electrical system while

iGo is attached.

Lowest Battery Status light is

Yellow. Unit beeps once.

Battery needs to be charged. 1. Plug unit into AC power or replace discharged battery with

charged battery.

2. Plug unit into DC accessory power port outlet to operate

unit. NOTE–Battery will not recharge on DC power.

Battery Status lights never

indicate fully charged.

1. Battery needs to be reconditioned.

2. Defective battery.

1. Fully discharge battery then recharge.

2. Contact DeVilbiss.

Yellow Battery Status light

ﬂashing.

Unit is equipped with built-in battery test and

the battery pack is being checked.

If light ﬂashes longer than 10 minutes, battery is defective.

Contact DeVilbiss for a replacement.

Short battery run time. 1. Battery needs to be reconditioned.

2. Air ﬁlter is blocked.

3. Exhaust is blocked.

4. Intake ﬁlter silencer is blocked.

1. Perform a complete discharge and then a 100% charge of

the battery.

2. Check the air ﬁlter. If the ﬁlter is dirty, wash it following the

cleaning instructions.

3. Check the exhaust area. Make sure there is nothing

restricting the unit exhaust.

4. Replace the intake silencer/ﬁlter. If the above remedies

don’t work, contact DeVilbiss.

Unit is noisy. 1. Intake silencer/ﬁlter is missing or not

installed correctly.

2. Exhaust mufﬂer is missing or not installed

correctly.

1. Install intake silencer/ﬁlter until fully seated in the gasket.

2. Install exhaust mufﬂer until fully seating in ﬁtting.

Audible alert sounds

intermittently. Flow indicator

light ﬂashing. Unit operating.

1. Partially blocked or defective cannula or

oxygen tubing

2. Tubing inside unit partially kinked.

3. Unit malfunction.

1. Disconnect the oxygen tubing at the oxygen outlet. If proper

ﬂow is restored, check oxygen cannula and tubing for

obstructions, kinks or leaks. Replace if necessary.

2. Search internal components for kinked tubing. Unkink tubing

or replace if necessary.

3. Contact DeVilbiss Customer Service for repair authorization.

Any other issues. Contact DeVilbiss.

COMPONENT DESCRIPTION AND FUNCTION

2-Way Proportional Valve

A 2-way proportional valve ensures that the selected ﬂow rate is delivered to the patient in either Continuous Flow or PulseDose mode. When the unit

is in PulseDose mode, the pressure switch triggers the proportional valve to deliver the correct bolus of oxygen for the selected ﬂow rate.

4-Way Valve

The 4-way valve directs the pressure and vacuum created in the compressor to the two sieve beds in alternating cycles. The cycle shift is controlled by

the PC board and occurs when a pre-determined pressure is reached in the accumulator tank.

Accumulator Tank

The accumulator tank holds the concentrated oxygen and releases it to the patient at a speciﬁed liter ﬂow.

Battery Pack

The battery pack contains two rechargeable lithium ion batteries of 22 nominal volts, 9 amp-hours of total capacity and allows the iGo to operate free