Powermax30 AIR
Service Manual
808850
91
5 – Troubleshooting and System Tests
Test 9 – internal compressor, compressor-driver board, and power board
If the internal compressor fault LED and temperature fault LED both illuminate, the root cause may be:
Faulty internal compressor
Faulty compressor-driver board (PCB3)
Faulty power board (PCB2)
Use this test to systematically check each of these 3 components to determine which one needs to be replaced.
For a high-level overview of this procedure, see
Process flow for troubleshooting internal
compressor and temperature fault LEDs
on page 220.
Turn OFF the power and remove the cover
1.
Set the power switch to OFF (
O
), and disconnect the power cord from the power source.
2.
Remove the power supply handle and cover. See
3.
Remove the component barrier. See
Test 9a – Check the diagnostic LED (D5) on the compressor-driver board
4.
Reconnect the power cord, and set the power switch to ON (
I
).
5.
Quickly tap the torch trigger to force gas flow
without firing an arc, then watch the green
diagnostic LED (D5)
on the compressor-driver
board. Does the LED illuminate while the torch is
being fired?
a.
If yes, check the internal compressor. Skip to
b.
If no, continue with the next step.
The D5 diagnostic LED indicates whether or not
there is 15 VDC output from the
compressor-driver board to the internal
compressor.
6.
Set the power switch to OFF (
O
).
WARNING!
ELECTRIC SHOCK CAN KILL
Use extreme caution when working near live electrical circuits. Dangerous
voltages exist inside the power supply that can cause serious injury or death.
on page 57 before proceeding.
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Страница 24: ...24 Powermax30 AIR Service Manual 808850 1 Specifications ...
Страница 32: ...32 Powermax30 AIR Service Manual 808850 2 Power Supply Setup ...
Страница 96: ...96 Powermax30 AIR Service Manual 808850 5 Troubleshooting and System Tests ...
Страница 183: ...Powermax30 AIR Service Manual 808850 183 6 Power Supply Component Replacement Figure 92 2 3 4 1 ...
Страница 184: ...184 Powermax30 AIR Service Manual 808850 6 Power Supply Component Replacement ...
Страница 200: ...200 Powermax30 AIR Service Manual 808850 7 Torch Component Replacement ...
Страница 222: ...Powermax30 AIR Service Manual 808850 222 9 Wiring Diagrams Powermax30 AIR schematic 013393 Rev A SHEET 1 of 2 ...
Страница 223: ...Powermax30 AIR Service Manual 808850 223 9 Wiring Diagrams 013393 Rev A SHEET 2 of 2 ...