Hypertherm Powermax105 Service Manual - Manual (Page 170)

TroubleshooTing and sysTem TesTs
8-32
powermax
105 Service Manual
3-nn-n
These fault codes can only be seen on the service screen.
Fault
code
Description Power
lED
Fault
lED
Fault
icon
Solutions
3-00-0 DC bus voltage
DC bus voltage is out of
range.
On On
• Inspect the PFC Boost circuitry (CSA,
230-400 V CE)
• Test the PFC Boost IGBT module (CSA,
230-400 V CE)
• Measure the bus voltage from TP8 (-) to
TP7 (+). If the voltage does not match the
VB on the service screen, replace the DSP
board.
3-10-0 Fan speed
The fan speed is below the
minimum speed.
• Clean the fan assembly.
• Perform Test 11.
3-10-1 Fan • Check the associated wiring.
• Perform Test 11.
• If necessary, replace the fan assembly.
3-11-0 PFC module temp sensor
open
• Check the associated wiring.
• Perform Test 4.
• If necessary, replace the PFC/Boost IGBT
module.
3-11-1 PFC module temp sensor
shorted
• Check the associated wiring.
• Perform Test 4.
• If necessary, replace the PFC/Boost IGBT
module.
3-11-2 PFC module temp sensor
circuit error
• Check the temperature circuit on the
power board. If Test 4 is good, replace the
power board.