Troubleshooting Guide - Pentair MYERS MINI-MAX Manual Del Propietário

PROBLEM
Motor will not start but
fuses do not blow
No voltage
Fuses blow or overload
protector trips when
motor starts
Wrong size fuse or wrong
size time delay fuse.
Wire size too small
Starting capacitor
defective or blown.
Low or high voltage
Cable leads not correctly
connected to control box.
Broken wire in control
box.
Pump or motor stuck or
binding.
Fuses blow or overload
protector trips when
motor is running
Low or high voltage.
High ambient
(atmospheric temperature)
Control box with wrong
voltage or horsepower
rating.
Wire size too small
Cable splices or motor
leads grounded, shorted,
or open.

TROUBLESHOOTING GUIDE

CHECK
No voltage at fuse box.
No voltage at control box.
No voltage at pressure switch
No voltage on load side of
pressure switch.
Cable or splices bad.
Control box incorrectly wired.
Check fuse size against chart, Page 4.
Check wire size against chart, Page 5.
Check control box to see if starting
capacitor has blown out.
Check that line voltage is within ±10% of
nameplate rated voltage while motor is
running.
Check control box wiring diagram
against incoming power hookup.
Check drop cable color coding.
Examine all connections and wiring in
control box.
Check for locked rotor in pump.
Check that line voltage is within ±10% of
rated nameplate voltage while motor is
running.
Check temperature of control box.
Compare voltage and horsepower on
motor nameplate with those given on
control box nameplate or on circuit
diagram inside control box cover.
Check wire size against chart, Page 5.
Consult licensed electrician or qualified
serviceman.
CORRECTIVE ACTION
Consult power supplier, check generator.
Check connections, rewire from fuse box to
control box.
Check connections, replace control box, rewire
from control box to pressure switch.
Check connections, replace pressure switch.
Consult serviceman or licensed electrician.
Reconnect control box correctly (see wiring
diagrams, Pages 12 through 15).
Install correct fuse or time delay fuse.
Install correct size wire.
Replace starting capacitor.
If voltage variation is greater than ±10%, call
power company to adjust voltage.
Reconnect leads to match wiring diagram in
control box cover.
Reconnect drop cable so cable color code
matches motor lead color code.
Disconnect power and repair or replace faulty
wire.
If necessary, pull pump (make all possible
above ground checks first). If pump is locked,
replace it. Clean well of all sand or lime before
reinstalling pump.
If voltage variation is more than ±10%, call
power company to adjust voltage.
Do not mount control box in direct sunlight.
Replace control box if numbers do not match.
Install correct wire size.
Do not attempt to disassemble pump or motor.
12