Operating instructions

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6.0 TROUBLESHOOTING GUIDE
6.1 Pressure Relief System
Problem
Cause
Solution
1. Alarm is on
The air cell alarm is activated any time
the actual pressure in the air cells
does not reach the programmed set
pressure in approximately 10 minutes.
The alarm will activate if the actual
pressure is beyond the tolerance of
2mmHg greater or lower than the set
pressure. Low pressure is usually an
indication of an air leak in the system.
High pressure is usually an indication
of a kinked hose.
a) It can be muted temporarily by pressing the
Alarm Mute button but, the condition must be
resolved before it will turn off permanently.
b) Check the CPR connections (See Section
4.5); make sure all male fittings have o-rings
in place and are not worn/cut and all CPR
fittings are set properly inside the CPR
assembly (See Section 4.5).
c) Check that all hoses are properly connected
according to the corresponding color-coding
on the controller & are not kinked or cut.
d) Check all hoses for cuts, holes or kinks along
the inside of the mattress. Each hose should
also be tightly connected to their respective
connector or air cell.
e) Check each air cell for cuts or holes to
ensure there are no leaks. (It will be easier to
detect a possible leak if you place the
system in the MAX INFLATE mode).
f) Once the leak or kink has been resolved, the
alarm will automatically turn off. To reset the
system more quickly, turn the power off and
then on again to reset.
2. The controller is
clicking excessively
Hose may be kinked
Starting at the CPR, check all hoses inside and
outside of the mattress for kinks.
3. Patient is sinking or
“bottoming out”
The pressures may be set too low for
the patient’s weight.
a) Verify weight setting in Patient Setup. See
Section 4.4.2. Adjust if set weight is not
accurate to the patient’s actual weight.
b) Increase bed pressure by pressing the
FOWLER button on the control panel. The
amount of this increase can be modified in
Advanced Settings and 3-5mmHg is usually
sufficient. However, wait at least 10 minutes
between adjustments to review patient
support condition in order to prevent
excessive pressure.
c) Use the UP arrow key on the control panel to
make small incremental changes in
pressure. However, wait at least 10 minutes
between adjustments to review patient
support condition in order to prevent
excessive pressure.