Tripp Lite SU60KX Manual

A SERVICE OF

next previous

108

PRELIMINARY

5.2 Troubleshooting Flow Charts (continued)

5.2.12 “BYPASS FAN FAILURE”

5 Troubleshooting (continued)

Start

Is

fan A spinning?

Fan A and B failed

Replace fan A and

(2)

fan B

(3)

Replace the P board or

M board

(1)

N

Y

Fan A failed

Replace fan A

(2)

Is the UPS

in bypass mode?

Is

fan C spinning?

Is

fan B spinning?

N

Fan C failed

Replace fan C

(4)

NY

Y

Replace the S board

or M board

(1)

Y

Y

N

N

Y

N

END

Do fans

work normally after

restarting UPS?

Does fan C

work normally after

restarting UPS?

Fig 5.2.12a

Fig 5.2.12b Fig 5.2.12c

Note (1): For the location of the NH-SYS-P and/or NH-SYS-M board, turn to section 1.5. To replace the NHS-SYS-M board, remove the EEPROM

chip from the old NHS-SYS-M board and insert it into the new one.

Note (2): Fan A is the main fan for the bypass static switch (Figure 5.2.12b).

Note (3): Fan B is the redundancy fan for the bypass static switch (Figure 5-16).

Note (4): Fan C is the main fan for the ﬁ lter (Figure 5.2.12c).