Vyaire VELA, Service Manual

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Chapter 8: Troubleshooting/Codes/Messages
8-1
33373-001 Version A
Chapter 8: Troubleshooting/Codes/Messages
8.1 UVT Test Troubleshooting
Problem Possible Cause Action
Lamp Test has various LED’s that
do not light during test Front Control Panel has open traces to
lights or damaged LED’s Replace Control Panel P/N 80519 and Overlay
P/N 80520-01 English P/N 80520-00 Icons
During Switch Test not all switches
activate with indicated nomenclature
Front Control Panel has open traces to
switches or damaged switches
Replace Control Panel P/N 80519 and Overlay
P/N 80520-01 English 80520-00 Icons
Alarm Test fails to activate Front Control Panel has open traces to
switches or damaged switches.
Alarm speaker is not functional.
Replace Control Panel P/N 80519 and Overlay
P/N 80520-01 English 80520-00 Icons.
Check Speaker wires to speaker and main
PCB ensure proper connection.
Replace Alarm speaker Assy. P/N 16357
Leak Test fails
1. External circuit leaks, wrinkled
exhalation diaphragm, valve body
damaged.
2. Pressure relief valve not set.
3. Internal tubing leaking.
4. Insp hold solenoid leaking
5. Anti-suffocation check valve leaking or
damaged.
6. Manifold base o-rings damaged, or
manifold cracked.
1. Ensure circuit is a reusable permanent type.
Turn ventilator off. Remove Valve Body and
reseat the diaphragm assy. Inspect and
replace valve body if damaged.
2. Adjust relief valve clockwise until seated
completely.
3. Check dryer tube luer lock connecters for
tightness.
4. On top of Insp Hold Solenoid are two wires
press with thumb between these wires
during the test. If leak stops call Vyaire
Technical Support.
5. Pull Turbine outlet boot out of the manifold
and look in boot cavity for Check Valve P/N
20651. If missing replace.
6. Remove bottom plate of manifold and
remove the red silicone O-ring’s. Inspect O-
ring grooves for cracks, if found replace
manifold assy. P/N 16348.