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6. TROUBLE-SHOOTING GUIDE
SYMPTOM POSSIBLE CAUSE SOLUTION
Power light is not on Blown fuse Replace fuse with Bussman PCC1 (1 amp)
or equivalent.
No power supplied Check line circuit breaker.
to unit
Relay fuse blows repeatedly External component Disconnect external loads. If
defective this prevents the fuse from blowing, plug
each external load in, one-by-one, until the
fuse blows. Repair or replace defective
component.
Motorized ball valve current Max. 5 amp resistive (Wickman 19733K,
requirements too great 5 amp or equivalent). Use a motor contactor
to control the valve.
Control light stays on Conductivity of water Check the conductivity of the
sampled is beyond water with a conductivity tester
range of controller and compare readings.
Probe leads Unplug probe leads, light should go off.
shorted Check lead for shorts.
Bleed valve plugged - no Clean or replace valve.
bleed off
Insufficient or no flow Remove obstruction in sample line.
past electrode.
Blow down line throttled too much Increase blow down rate.
Control light does not Leaking system Check blow down valves.
come on
Control light goes on and Electrode is air-bound Bleed air from electrode by
off every few minutes allowing water to completely
fill and flow through it to drain.
Adjust throttling valve so that only
water flows across the probe.
Check surface skimmer 4 to 4 inches below
surface
Wide variation in solution Poor circulation through Clean electrode.
conductivity electrode
Bleed rate exceeds Decrease bleed rate.
make-up water rate
Bleed rate too low Increase bleed rate.
Conductivity of solution Electrode fouled or dirty Clean or replace electrode.
is slowly rising
Bleed rate too low Increase bleed rate.
Bleed-off solenoid or other Inoperative solenoid valve Replace valve coil or valve as required.
electrical device being
operated by the controller
does not operate. Wiring between solenoid Rewire this connection. To check solenoid
valve and control defective valve, disconnect it from the controller and energize it
from a separate power source.
Improper voltage Check for correct valve coil voltage;
should be 115 VAC. (Optional 220 VAC.)
Improper pressure differential Check piping and pressure at your locaacross solenoid valve tion to make sure at least the minimum
pressure exists across your solenoid.