Hypertherm Powermax105 Service Manual - Manual (Page 197)

TroubleshooTing and sysTem TesTs
powermax
105 Service Manual 8-59
test 12 – AUX switch
Symptom: Upon power-up, fault code 0-19 displays. After 1 minute, fault code 0-99 displays. In service mode, the live
fault code is 2-01-1.
1. Turn the machine off and disconnect the power.
2. Disconnect the auxiliary switch cable from J5 on the power board.
3. Measure the resistance on the cable plug between Pin 4 and Pin 5.
4. If the power switch is closed (ON) there should be very low resistance.
5. If the power switch is open (OFF) there should be very high resistance.
6. If the resistance measurement doesn’t agree, check the cable, plug, and switch for opens or shorts.