Horizon Reverse Osmosis Seafari Versatile Series, Owner'S Manual

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Seafari Versatile 450 - 1800
Page 7-7
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5. If low or no voltage present in the step 3
above, then check for proper operation of
the Booster Pump Contactor. To deactivate
the contactor, press the “Stop” switch
twice. To activate the contactor again
press “Booster Pump” switch.
6. If the contactor is mechanically operating,
but no voltage present at the motor
terminal (step 3 above), then the contactor
may be at fault.
7. If the contactor does not operate
mechanically, then measure DC voltage
between A1 and A2 terminals. It should
read 12V DC when activated.
8. If the contactor gets 12V DC, but
inoperative, then its coil may be open.
Replace the contactor.
9. If 12V DC is not present when the booster
pump is activated, trace yellow and
yellow/black wires to TB-2 and measure
the DC voltage at the terminals. It should
read 12V when activated.
10. If 12V DC is not present at the Booster
Pump terminals, then disassemble
Controller Enclosure and open the shell
by removing 4 screws. This exposes the
main controller circuit board.
c) Diversion Valve (3-Way Valve) Troubleshooting
If the Diversion Valve fails to operate, follow
these steps to isolate the problem.
1. Disassemble Controller Enclosure and
open the shell by removing 4 screws. This
exposes the main controller circuit board.
2. Disconnect 3 wires from “SAL PROBE”
terminals temporarily after noting wire
connections. (Main Printed Circuit “PC”
Board) This fools the controller to “think”
there is good water.
3. Start the system.
4. Approximately 10 seconds after the
system starts, the Water Quality LED
turns green from red. If this is not
observed, then go to Salinity Level
Calibration procedure.
5. When the Water Quality LED is
illuminating in green, disconnect a
control cable connector at the Diversion
Valve. If the solenoid inside of the valve
is functioning, a distinct click sound is
heard.
6. If the valve is silent, measure the
continuity of its solenoid coil as shown
below.
Measure the DC resistance between
pins 1 & 2.
It is approx. 12 to 15 Ω
7. If the resistance value is abnormal
(shorted or open), then replace the Valve.
8. If resistance value is OK, then measure the
DC voltage at the connector, pins between
1 & 2. This should be 12V.
9. If the voltage is 0 on the step above,
measure a DC voltage on the terminals
marked as “3WAY” on the Control Circuit
board. If there is 12V
present, then check
the connecting cable
between the Valve and
Circuit board.
10. If no voltage
indication on the terminals, check to see if
the “3-WAY VALVE” LED is illuminated
on the board. If it is off, then replace the
Control board.
d) High Pressure Pump:
If the High Pressure Pump fails to operate,
follow these steps to isolate the problem.
1. Make sure the system is receiving a proper
power and the “POWER” LED is on.
2. Press “Start” switch to activate the motor.
It will take approximately 5 seconds
before the High Pressure Pump Motor to
start. Do not press any other switch.
3. Measure the AC voltage between
terminals 8 and 10 (single phase) or 8,
10 and 12 (3 phase) on TB-1 in the main
power enclosure.
4. If the voltage measured in the step 3
above matches the system voltage, then
problems may be in the motor wiring or
the motor itself.
5. If low or no voltage present in the step 3