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Troubleshooting
PROBLEM / CONDITION
GPU does not turn ON
Volt/Amp meter OFF*
Status indicator OFF
GPU displays voltage but no output
to aircraft (zero amps)
GREEN
Status indicator
Volt/amp meter OFF*
Status indicator
FLASHING GREEN
Status indicator
FLASHING RED
Voltage drops to < 13/26 volts
Status indicator
FLASHING RED
Volt/Amp meter OFF
Status indicator
FLASHING RED
GPU displays voltage but no output
to aircraft (zero amps)
* If there is battery voltage back feeding to the GPU from the aircraft, the voltmeter will display that condition, which may trigger the
GPU into protection mode and not turn back on if power is interrupted. Follow instructions above for disconnecting from the
aircraft and resetting the GPU to restore proper operation.
SPECIFICATIONS
Input Voltage
Input Current
Input Fuse
Output
Output Cable
Chassis Dimensions
Carry Weight w/cables
Carton Dimensions
Shipping Weight
M-Series Mini-GPU Manual P/N 752-697, Rev 20211201
CAUSE
No AC input to GPU.
Faulty connection between
GPU and aircraft electrical
system.
Auto-shutdown timer
expired.
Current overload.
Internal protection engaged.
Over temperature, or
Sustained overload.
Internal protection engaged.
M1435 / M1435P
90-240 volts AC, 50-60 Hz
5.3A @ 115 volts AC
8A Littelfuse 617 Series
0617008.MXP
14.25 +/- 0.25 VDC, 35 amps max
8 AWG, SB-50 to 3-pin oval AN2551
(single-pin Piper plug for M1435P)
4.13" H x 5.32" W x 13.4" L
10.9 lbs
6" H x 10" x 16" L
12 lbs
SOLUTION
Verify power cord connections.
Check AC input fuse. If blown, replace
(only once). 1 extra fuse is contained in
the fuse drawer. If fuse blows a second
time, do not replace until GPU is
repaired. See Limited Warranty
statement for technical service contact
information.
Check connections from GPU to the
aircraft's external power receptacle.
Cycle power switch OFF, then back ON,
to restart shutdown timer.
Adjust timer settings if desired, or zero to
disable shutdown timer.
Reduce load to less than 35/27 amps.
Reduce load to less than 35/27 amps.
Turn off aircraft equipment to reduce
current draw.
Cycle Power Switch OFF then ON again
to reset.
If cable connections are good, then turn
power switch OFF.
Disconnect DC output cord from aircraft
external power receptacle. Wait for GPU
meter to go OFF.
Power switch ON. Meter ON.
Reconnect to aircraft.
M2827
90-240 volts AC, 50-60 Hz
8.2A @ 115 volts AC
P/N
10A Littelfuse 617 Series
P/N 0617010.MXP
28.50 +/- 0.25 VDC, 27 amps max
8 AWG, SB-50 to 3-pin oval AN2551
4.13" H x 5.32" W x 13.4" L
11.2 lbs
6" H x 10" x 16" L
12 lbs
5
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