Troubleshooting
If there is a problem, try the following suggestions. If the problem cannot be solved, contact your equipment supplier or ResMed. Do not attempt to open the flow generator.
Problem | Possible cause | Solution |
|
|
|
Insufficient air delivered | Air filter is dirty. | Replace air filter. |
from flow generator |
|
|
| Air tubing is kinked or | Straighten or replace tubing. |
| punctured. |
|
Flow generator operating erratically, ie, switching on and off, pressure varying at random
Water may have entered the air tubing.
Remove the water from the air tubing.
Pressure rises | You are talking, coughing, |
inappropriately | voluntarily |
| while rolling over in bed), or |
| intentionally breathing in an |
| unusual manner. |
Avoid talking with the mask on, and breathe as normally as possible.
| Severe mask leak or mouth | Correct your leak condition. |
| leak (greater than 30 L/min). |
|
|
|
|
Alarm stays on continuously | Blockage in air circuit. | Ensure there is no barrier to |
|
| the passage of air. |
| Internal malfunction. | Return the device to your |
|
| equipment supplier for |
|
| service. |
|
|
|
No LCD display | Power not connected or | Ensure the power cable is |
| switch at back is not on. | connected, and that the |
|
| switch at the back of the |
|
| unit is in the “on” position. |
|
|
|
FAULT message displayed | Internal malfunction. | Return the device to your |
on LCD |
| equipment supplier for |
|
| service. |
System Error 7 message | Device |
| interrupted by breathing into |
| the mask during warm up. |
Internal malfunction.
Turn the flow generator off and on again. Do not place mask on face during warm up (30 seconds). Select LEARN CIRCUIT (page 22). If the error is not cleared, contact your equipment supplier for service.
Return the device to your equipment supplier for service.
Troubleshooting 35
