PH/PHX-2 Manual
38
IF THE DIRECTIONAL INDICATOR LIGHT IS OFF PROCEED BELOW
BEFORE TROUBLESHOOTING, THE REVERSING PLATE MUST BE MOVED AWAY
FROM THE SWITCH.
a) Bleed down the chemical pressures.
b) Ensure Pump Switch (X, page 16) is OFF.
c) Turn on the motor (W, page 16).
d) Go to the Directional Valve and locate the Actuation Coils. Located in the middle of
each coil is small round tab that can be pushed in to manually shift the spool to
move the pumps. If the Reversing plate is all the way to the left push in on the right
side coil. If it’s all the way to the right side, push in on the left side coil.
WARNING! THE MOTOR MUST BE OFF AND THE PUMP SWITCH IN THE NORMAL
POSITION.
Take a small screw driver or a thin piece of metal and move it across the front of each
Prox switch. A red light on the back of the switch should illuminate. If not, replace the
switch that does not light.
If the Prox switches light up, turn off all power and check for continuity on both over
pressure switches, pin 1 and 2. If the pressure switches are good, go to the two solid state
relays inside the console and interchange them, they can be pulled from their housing.
Power up the unit with the pump switch in the normal position and the motor OFF. If the
directional light comes on replace the defective solid state relay. If not replace the
Latching relay.
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