Lincoln Electric LN-25 Service Manual page 46

F-9
GAS SOLENOID VALVE AND SOLENOID PC BOARD TEST
3. Locate and remove the two solenoid
leads from the solenoid valve (For
codes 9812 and below, remove the
two leads from the solenoid PC
board). See Figure F.2.
4. Make sure the gas supply for the
solenoid is hooked up, and then apply
12 VDC to the gas solenoid.
5. If the solenoid activates and allows
gas flow, then the solenoid valve is
good.
TROUBLESHOOTING AND REPAIR
(continued)
FIGURE F.2 – SOLENOID LEADS.
SOLENOID LEADS
NOTE: There should not be any gas flow
until the solenoid is activated.
6. If the solenoid does not activate and
allow gas flow, then the solenoid is
faulty. Replace.
7. The normal solenoid resistance is
approximately 20 to 27 ohms.
LN-25
SOLENOID LEADS
F-9