Horizon Reverse Osmosis Seafari Versatile SFC-1400-2, Owner'S Manual

Page: 87 / 162

HRO
Systems
Horizon
Seafari
“Section I” System Troubleshooting Guide
4. Adjust “FRESH WATER FLUSH DURATION” control (shown below) to obtain a desired
length of operation. Full counter clockwise position is approximately 6 minutes and full
clockwise position gives approximately 14 minutes.
5.
To time the duration, repeat the step 2 above.
6.
This completes the adjustment.
7.
Reassemble the Controller Enclosure.
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 above, then check for a proper operation of the High
Pressure Pump Contactor. To deactivate the contactor, press the “Stop” switch twice. To
activate the contactor again press “Start” 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 High Pressure Pump is activated, trace orange and
orange/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 High Pressure Pump terminals, then disassemble Controller
Enclosure and open the shell by removing 4 screws. This exposes the main controller circuit
board.
11.
Confirm the “HIGH PRESSURE PUMP (HP)” LED, as shown in the Fig. 1, is on when the
High Pressure Pump is activated. Whenever this LED is on, HP terminals on the circuit board
has 12V. If it is not the case, replace the controller circuit board.
If the voltage is present but the High Pressure Pump Contactor does not activate, then check cable
connections between the Controller Enclosure and Main Power Enclosure.
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