Product Manual

Troubleshooting
30 3A7656A
5.Perform Spin Test: Test at large
4-pin motor field connector.
Disconnect fluid Pump from
sprayer. Test motor by placing a
jumper across pins 1 & 2. Rotate
motor fan at about 2 revolutions per
second. A cogging resistance to
motion should be felt at the fan.
The motor should be replaced if no
resistance is
felt. Repeat for pin
combinations 1 & 3 and 2 & 3. Pin
4 (the green wire) is not used in
this test. If all spin test is positive,
continue to step 6.
GRN BLU R BLK
GRN BLU R BLK
STEP 2:
STEP 3:
STEP 1:
GRN BLU R BLK
6.Perform Field Short Test: Test at
large 4-pin motor field connector.
There should not be continuity
from pin 4, the ground wire, and
any of the remaining 3 pins. If
motor
field connector tests fail,
replace motor.
7.Reconnect motor connector(s) to
control board socket(s). Connect
power, turn ON/OFF Switch ON
and control knob to 1/2 turn
clockwise. If motor does not run,
replace control assembly.
Problem What to Check How to check