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TROUBLESHOOTING & REPAIR | ||
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GAS SOLENOID TEST (CONTINUED)
FIGURE F.2 – GAS SOLENOID
GAS SOLENOID
CONTROL BOX
CONTROL BOX COVER
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PROCEDURE
1.Perform the Case Removal Procedure.
2.Remove the five
3.Apply the correct input voltage
4.While pressing the gas purge button or acti- vating the gun trigger, check for approximate- ly 4VDC is present at the solenoid leads. If the 4VDC is present the solenoid should acti- vate. If the 8VDC is present but the solenoid does not activate the solenoid may be faulty.
5.If the 4VDC is missing or low, check the leads and connections between the solenoid and the control board. See the Wiring Diagram. If the leads and connections are ok, the con- trol board may be faulty.
6.If high voltage is seen (Approx. 35 volts) the solenoid coil is open.
7.Normal solenoid coil resistance is 22 ohms.
8.The solenoid can also be checked by discon- necting the leads and applying 12VDC direct- ly to the terminals. If the solenoid does not activate the solenoid is faulty.
9.If the solenoid fails any of the above tests replace it.
10. Reassemble the feeder in reverse order.
