Powermax, Troubleshooting and system tests – Hypertherm Powermax105 Service Manual User Manual
Page 149
TroubleshooTing and sysTem TesTs
powermax
105 Service Manual
8-11
J27
WORK
LEAD
J26
RED
J18
ORG
J17
J32
J28
RED
Measure resistance from
All models
Work lead (J27) to nozzle (black wire)
230 kΩ
Work lead (J27) to electrode (red wire)
9 kΩ
Electrode (red wire) to nozzle (black wire)
230 kΩ
Output to ground
> 20 MΩ
If no problems were found during the visual inspection or the initial resistance check, and the power supply still does not
operate correctly, see the Troubleshooting guide.
Note: Troubleshooting guide later is this section provides most probable causes and solutions. Study the system
wiring diagram and understand the theory of operation before troubleshooting. Before purchasing any major
replacement component, verify the problem with Hypertherm Technical Service or the nearest Hypertherm
repair facility.
Black wires
Red wire J28
Work lead J27