TM-9-2350-277-10
CARRIER, M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58
TECHNICAL MANUAL; OPERATOR’S MANUAL
TM-9-2350-277-10 - Page 554 of 889
TM 9-2350-277-10
TROUBLESHOOTING TABLE — Continued
0089 00
INITIAL SETUP:
Maintenance Level
Operator
POWER ENCLOSURE/INVERTERS (M1068A3
ONLY)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
OVERLOAD LED
INDICATOR COMES
ON DURING OPERATIONS
(OLD AND NEW MDL
MODELS ONLY)
1.
Turn inverter off (WP 0086 02).
2.
Calculate power draw of equipment
connected to AC power.
NOTE
Maximum load provided by both
inverters is 5.0 kW/40 amps. If one
inverter has failed the other inverter will
only provide 2.5 kW/20 amps if it is the
primary (master) unit.
below inverter maximum load rating.
NOTE
4.
Power-up inverters (WP 0086 02).
5.
Check OVERLOAD LED Indicator.
If OVERLOAD LED indicator is
ON then turn OFF all DC and AC
circuit breakers.
NOTE
If it is quiet enough, listen to hear
if the internal fans in the inverters
are operating. If these are working,
they will aid in cool down. If these
are not working, the inverters may
be overheating causing the overload
condition.
0089 00-23
Change 5
7.
Repeat Steps 1–2 to cool inverters down a
maximum of three times.
If inverters have cooled down
and equipment removed and
overload LED is still ON, notify
maintenance.
3.
Disconnect equipment until power draw is
Allow inverters to cool before attempting
to restart in high ambient temperatures
with a high load. This could take 30
to 60 minutes. A light overload, short
duration, and low ambient temperatures
may allow for it to be restarted quickly.
6.
Set MASTER SWITCH to ON. Do not push
the reset switch.
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