FCI Watermakers MAX-Q+, User Manual & Installation Manual

Page: 112 / 170

FCI WATERMAKERS, INC. 112 Maintenance & Repair
HIGH PRESSURE PUMP MAINTENANCE & REPAIR
(continued)
Low voltage will also cause the same symptom. Low voltage is caused by an
undersized power supply or generator, undersized power lead wires to the system
or motor, loose power wire, loose connection at the motor or within the power
supply line, and “burnt” contacts on the motor starter relay (contactor).
SOLUTIONS: Check wiring size and connections to, from, and in between the
power supply and the electric motor. Correct wire size or any loose wires. Check
the capacitor on the motor and replace it if it has shorted out. Measure voltage at
the motor during attempt to start it. If voltage drops more than 10% locate and
correct the reason. Check the motor starter relay (contactor) for “burnt” contacts.
SERVICING THE HIGH PRESSURE PUMP
When servicing the high pressure pump, refer to the assembly drawing,
specifications, and exploded view illustration on the following pages.