Troubleshooting
332144E
37
Proportioner
Before performing any troubleshooting procedures:
1.
Shut off Heater Power.
2.
Shut off Motor Power.
3.
Relieve pressure, page 24.
4.
Allow equipment to cool.
Try the recommended solutions in the order given for
each problem, to avoid unnecessary repairs. Also,
determine that all circuit breakers, switches, and con-
trols are properly set and wiring is correct before assum-
ing there is a problem.
PROBLEM
CAUSE
SOLUTION
Reactor does not operate.
No power.
Plug in both power cords.
Cycle Motor Power and Heater
Power off
, then on
to reset both breakers.
Motor does not operate.
Power turned on while function knob
set to a run position.
Set function knob to Stop/Park
,
once status LED turns on. Then
select desired function.
Loose connection on control board.
Check connection at motor power
connections on bottom board. See
F
Worn brushes.
Check both sides. Replace brushes
worn to less than 1/2 in. (13 mm), see
page 55.
Broken or misaligned brush springs.
Realign or replace, page 55.
Brushes or springs binding in brush
holder.
Clean brush holder and align brush
leads for free movement.
Shorted armature.
Replace motor, page 54.
Check motor commutator for burn
spots, black pitting, or other damage.
Remove motor. Have motor shop
resurface commutator, or replace
motor, page 54.
Failed control board.
Replace board. See page 45.
Pump output low.
Plugged fluid inlet strainer.
Clear, see page 25.
Leaking or plugged piston valve or
intake valve in displacement pump.
Check valves. See pump manual.