Fault Codes - Mitsubishi Electric 9900D Series Owner Technical Manual

7.0 FAULT CODES

This section covers fault codes, their description and required action.
In the event of a fault occurring:
A) Verify and record the occurrence of the alarm. Note details of alarm message displayed on
the LCD display panel.
Contact Mitsubishi Electric Power Products, Inc. at 1-800-887-7830.
B) If a circuit breaker (MCCB) has tripped, depress the toggle to reset the breaker before
closing it again.
9900D SERIES UPS
OWNERS / TECHNICAL MANUAL
MITSUBISHI ELECTRIC 9900D SERIES UPS
Page Number:
7-1