Pump Troubleshooting - Pentair Pool Products HYDROMATIC SKHD 150 Installation And Service Manual

Submersible effluent pump
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sealing part. If there are no
leaks, fill the motor and seal
housing
with
high
transformer
oil,
Factopure SE40 or equivalent,
to at least one inch below top
of housing.
Do not fill the motor housing
completely – allow air space
for expansion. Replace oil
plug (#9).
14.Check for proper sealing of
lower seal assembly by adding
7–8 lbs. air pressure at (#11)
tap oil fill hole.
Note: Too much pressure will
cause seal failure. Seal would
have to be replaced.
Submerge in water. If air
bubbles appear, isolate the
source of the leak and correct
the problem. If there are no
leaks fill lower seal chamber
with high grade transformer
oil. Lay pump on side and fill
to
1
" below fill plug. Replace
2
plug (#11).
15.Connect power cord wires to
terminals, connect power, and
check pump running. Motor
should run smoothly and be
free of vibration.
16.To check seal probe, use
an ohmmeter to measure
resistance and check continuity.
If meter reads zero then
replace probe (#23). Check
probe sensor wire (#22) for
opens using the ohmmeter. If
reading is zero the wire is OK.
For shorts place lead on the
motor housing, making sure
bare metal surface is used.
Place the other lead on the
bared end (#26) of the probe
lead (#22). Reading should be
infinity (∞). If reading is zero
then replace seal probe lead.
Return to Step 10.
Pump
Troubleshooting
grade
such
as
Warning: Before handling these
pumps and controls, always
disconnect the power first.
Do not smoke or use sparkable
electrical devices or flames in a
septic (gaseous) or possible
septic sump.
Pump does not run or hum.
1. Check
proper power.
2. Line circuit breaker may be
off, or fuse may be blown
or loose.
3. Water level in sump may be
too low. Run in more water to
activate switch. It will turn on
when 90˚ has been achieved.
4. Pump cord plug may not be
making contact in receptacle.
5. If pump is using the series cord
plug, the two plugs may not be
plugged tight together.
line
voltage
for
1
9
30
29
1"
3
Oil
Level
31
2
6
25
7
14
12
8
15
21
20
17
18
19
6. Float may be stuck. Be sure
float operates freely in basin.
7. If all symptoms check OK,
motor winding may be open;
take pump to an authorized
service center.
Pump runs but does not
deliver water.
1. Check valve may be installed
backwards. Arrow in valve
points in direction of flow.
2. Discharge gate valve, if used,
may be closed.
3. Pump may be air locked. Start
and stop several times by plug-
ging and unplugging cord.
Check vent hole in pump case
for plugging.
4. Pump head may be too high.
Pump cannot deliver water
over
100
ft.
Horizontal distance does not
affect pumping, except loss
due to friction.
5. Inlet in pump base may be
clogged. Remove pump and
clean out openings.
27
4
1Ø only
26
5
6
22
23
24
13
11
10
16
vertical.
7

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