Respironics ESPRIT Service Manual page 154

Chapter 8
Performance Verification
8-48
Symptom
Displayed bus voltage is 1. Allow Backup Battery to fully charge (recharge for 8 to 12 hours if
Backup Battery below fully depleted).
22.3 VDC during
2. Check the Backup Battery output voltage with a DMM. Replace
Backup Battery
battery if the output voltage is below 22.3 VDC.
operation
Cycling ventilator power 1. Allow Backup Battery to fully charge (recharge for 8 to 12 hours if
results in diagnostic fully depleted).
code or continuous
2. Slave-in a known-good Backup Battery.
backup alarm condition
3. Replace the power supply.
Esprit® Ventilator Service Manual © Respironics, Inc.
Recommended Repair
REF 580-1000-02 G