1
14
15
19
20
17
18
12
21
8
9
10
11
3
2
6
7
4
5
pounds of air pressure. Air
bubbles should appear at first,
then stop. If air bubbles
continue, then recheck seals.
20.Fill the motor cap with
high-grade transformer oil
such as Sohio (6) Factopure
SE40 Oil (or equivalent) to
at least 1⁄4" over motor
windings top plate, or to the
top of the stator.
Do not fill the motor housing
completely. Allow air space
for expansion.
Replace oil pipe plug (14).
Recheck with ohmmeter
before applying power.
21.Plug the power cord into a
grounded outlet and check
pump running. Motor should
run smoothly and be free
of vibration.
2. Water level in sump may be
too low to activate automatic
switch. See installation for
proper on/off levels.
3. Pump and/or switch cord plug
may not be making contact
in receptacle.
4. If pump is using the series
(piggyback) cord plug, the two
plugs may not be plugged
together tightly.
5. Float may be stuck. Be sure
float operates freely in basin.
6. If the unit is being operated by
the optional float control
switch, unplug the pump from
the piggyback receptacle and
plug the pump directly into
the power source. If the
pump starts each time it is
plugged directly into the
receptacle and does not start
each time when plugged into
the piggyback s w i t c h w i t h
the float raised up to a start
position, replace the complete
piggyback switch assembly
and retest with new assembly.
7. If all symptoms check OK,
motor winding may be open;
take to authorized service
center for check.
Pump runs but does not
deliver water.
1. Check valve may be installed
backward. Arrow on valve
points in direction of flow.
2. Discharge shutoff valve, if
used, may be closed.
3. Pump may be air locked. Start
and stop several times by
plugging and unplugging cord.
Servicing should be performed
only by an authorized Hydromatic
service center.
Warning: Always disconnect the
pump from power
source
before handling or making any
adjustments. Always wear
rubber boots when there is
water on the floor and you must
unplug the pump or make
any adjustments.
Note: Automatic thermal
overload protects the sealed-in-
oil motor. Running dry may
overheat the motor and activate
the overload protector until the
unit cools.
Pump does not run or just hums.
1. Line circuit breaker may be off,
or fuse may be blown or loose.
Pump
Troubleshooting