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TROUBLESHOOTING AND REPAIR
F-10F-10
LN-25™
SOLENOID PC BOARD
1. Apply at least 25 VDC but no more than 100
VDC to the LN-25™ from the electrode cable to
the work sensing lead. Make sure the polarity
switch is set to match the polarity of the
electrode cable. For example, if the electrode
cable is positive and the work sensing lead is
negative, set the polarity switch to positive. See
Figure F.3.
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GAS SOLENOID VALVE AND SOLENOID PC BOARD TEST
(continued)
FIGURE F.3 – APPLIED VOLTAGE POLARITY.
ELECTRODE CABLE
POLARITY
SWITCH
WORK
SENSING LEAD