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Error
Code
Text on Display Problem
Action
6
Int. Function
Failure: 6
UI processor unable
to stop the blower
motor.
1. Restart the ventilator.
2. Replace the CPU board or send the
ventilator for service.
7
Int. Function
Failure: 7
Treatment beeper
fails.
1. Restart the ventilator.
2. Replace the beeper.
3. Replace the CPU board or send the
ventilator for service.
8
Int. Function
Failure: 8
Communication pro-
cessor unable to com-
munication with
alarm speaker volume
control.
1. Restart the ventilator.
2. Replace alarm speaker.
3. Replace the CPU board.
4. Send ventilator for service.
9
Int. Function
Failure: 9
5 V or 12 V on CPU
board is out of range.
1. Restart the ventilator.
2. Replace the CPU board or send the
ventilator for service.
10
Int. Function
Failure: 10
Treatment processor
unable to communi-
cate with PTU board.
1. Restart the ventilator.
2. Check ribbon cable between CPU
board and PTU board.
3. Replace the PTU board.
4. Replace the CPU board or send the
ventilator for service.
11
Int. Function
Failure: 11
Main and back-up
pressure sensors does
not match.
1. Restart the ventilator.
2. Replace the PTU board.
3. Replace the CPU board or send the
ventilator for service.
12
Int. Function
Failure: 12
PTU board tempera-
ture is above 80°C
(176°F).
1. Let the ventilator cool off and restart.
2. Check the cooling air filter.
3. Check the cabling to the cooling fan.
4. Check that the cooling fan runs. It shall
always run when the ventilator is con-
nected to mains. If it is not running -
replace the cooling fan.
5. Replace the PTU board.
6. Replace the CPU board or send the
ventilator for service.
13
Int. Function
Failure: 13
PTU board tempera-
ture is below -30°C
(-22°F). Probable
sensor failure.
1. Place the ventilator in normal room
temperature. Open the ventilator and
make sure that there is no condensation
inside. Reassemble the casing and restart.
2. Replace the PTU board.
3. Replace the CPU board or send the
ventilator for service.
Vivo 45/Nippy 4 Series Service manual
Doc. 007132 D-2
Summary of Contents for Nippy 4 Series
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