5. Use a digital multimeter to measure the resistance from the torch tip to the ohmic relay.
a. If the resistance is infinite (open), replace the torch lead.
b. If the resistance is less than 100 ohms (Ω), continue with the next step.
6. Reconnect the ohmic-relay connector.
7. Examine the ohmic contact PCB.
Refer to Torch connect console ohmic PCB (141368) diagram on page 389.
a. If the PCB configuration is for internal ohmic, make sure that the ohmic wire from the ohmic
relay is connected to J3.
Diagnostics and Troubleshooting
8
309811530Instruction ManualXPR460
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