Troubleshooting - Dräger DOLPHIN Bedienungsanleitung

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Problem
No reading on pressure
gauge after opening the
nitrox cylinder
Gas leaks at the cylinder, first
stage or bypass valve.
Positive pressure gauge
reading and no gas supply
into the unit
Positive pressure reading
but no gas flow at automatic
bypass valve
While diving, the bypass
valve dumps gas often or
continuously, or does not
perform properly
Calibrated gas flow values
too low or too high
Non- return valves do not
respond to breathing pattern
Non- return valves do
not open whilst breathing
Mouthpiece lever is
difficult to turn
Water leaks into the
breathing unit
Jacket inflates without
manually depressing the
inflator button
The Jacket deflates on its own
Pannenhilfe

Troubleshooting

Cause Solution
Empty cylinder Fill cylinder
Defective pressure
Replace gauge at dealer
gauge
Connecting hose Replace hose at dealer
blocked
Defective seal or
Close cylinder,
connection not pro- bleed pressure
perly secured. and check seals.
Refer to specialist if necessary
Regulator defective Replace regulator at
authorised dealer
Blocked gas hose Have hose replaced by authori-
sed dealer
Defective bypass
Have valve serviced at
valve authorised dealer
Bypass valve Have valve serviced or
wrongly tuned or replaced by authorised
defective
dealer.
Flow valves not Take to dealer for tuning
tuned properly or or replacement
defective
Defective valves Have mushroom valves replaced
by authorised dealer
Sticking valves Check valves and rinse in fresh
water. Replace if necessary at
authorised dealer
Mouthpiece lever is Get mouthpiece cleaned
dirty or corroded or replaced by
authorised dealer
Seals dirty or Exchange or clean according
defecitve to directions. Test by inflating
system and submerging in water
Injected air is Have the Inflator replaced
leaking past the by a dealer
inflator insert
1.There is a gas Check all sites and refer to
leak in the inflator service technician if necessary.
mouthpiece
2.There is a leak in
the air bladders, or
the connectors
3.There is a leak in
the exhaust valve
4.There is a leak in
the emergency
cylinder connector,
if present, or in the
water release
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