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Troubleshooting
en
5 Troubleshooting
Error Cause Remedy
Test pressure rises (up to zero) Exhalation valve faulty Replace exhalation valve
Opening pressure too high Lever bent, lever height wrongly set Check lever and set lever function
Exhalation valve disc sticking or
material stiff
Replace exhalation valve disc
Pressure reducer leaks O-ring faulty Replace O-ring
Lung demand valve leaks Diaphragm damaged Replace diaphragm
High inhalation resistance Diaphragm damaged Replace diaphragm
Diaphragm and/or support ring
fitted incorrectly
Check correct fitting
Lever of lung demand valve bent Repair lung demand valve
1)
High exhalation resistance Exhalation valve disc sticking Replace exhalation valve disc
1) Only by Dräger personnel or qualified specialists.