Graco Inc. 224200 - Manual (Page 19)

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Troubleshooting
Electrical Troubleshooting with SVR
NOTE: Additional gun troubleshooting can be done using the Remote Spraying Voltage Readout (SVR t ).
See Accessories to order the SVR and the RF transmitting power supply.
Problem Cause Solution
Lower than normal voltage output Insufficient air pressure to the turbine
alternator. Increase the air pressure to the gun.
Faulty turbine alternator. Replace the turbine alternator. See page 28.
Improper distance between gun and
workpiece. Adjust the spraying distance to 8–12 in.
(203–305 mm).
Fluid resistivity is too low. Check the fluid resistivity with a paint meter
and probe.
Dirty gun. Clean the gun. See page 14.
Higher than normal voltage out-
put Faulty gun resistance.
Fluid resistivity higher than normal.
Check the gun resistance. See page 20.
Check the fluid resistivity with a paint meter
and probe.