4
P
PR
RO
OB
BLLEEM
M
C
CH
HEEC
CK
K
C
CO
OR
RR
REEC
CT
TIIV
VEE A
AC
CT
TIIO
ON
N
P
Pu
um
mp
p w
wiillll n
no
ott ssttaarrtt b
bu
utt ffu
usseess d
do
o n
no
ott b
bllo
ow
w
No voltage.
No voltage at control panel.
Replace blown fuses or bad cable.
Electrical cable bad.
Consult licensed electrician or serviceman.
Control panel incorrectly wired.
Reconnect control panel correctly.
FFu
usseess b
bllo
ow
w o
orr o
ovveerrllo
oaad
d p
prro
otteecctto
orr ttrriip
pss w
wh
heen
n m
mo
otto
orr ssttaarrttss
Wrong size fuse or wrong
Check fuse size against chart, above.
Install correct fuse or time delay fuse.
size time delay fuse.
Low or high voltage.
Check that line voltage is within ±10% of nameplate
If voltage variation is greater than ±10%, call power
rated voltage while motor is running.
company or local hydro authority to adjust voltage.
Power supply wire leads
Check control panel wiring diagram against incoming
Reconnect leads to match wiring diagram in control
not correctly connected
power hookup. Check power supply wire color coding.
panel cover. Reconnect power supply wires so wire
to control panel.
color code matches motor lead color code.
Broken wire in
Examine all connections and wiring in control panel.
Disconnect power and repair or replace faulty wire.
control panel.
Pump stuck or binding.
Check for locked shaft in pump.
If necessary, pull pump (make all possible above
ground checks first). If pump is locked, replace it.
Clean tank of all sand or lime, or solids before
reinstalling pump.
Power supply wires or
Consult licensed electrician or qualified serviceman.
Have a qualified serviceman or electrician make
pump leads grounded,
necessary cable repairs..
shorted, or open.
FFu
usseess b
bllo
ow
w o
orr o
ovveerrllo
oaad
d p
prro
otteecctto
orr ttrriip
pss w
wh
heen
n m
mo
otto
orr iiss rru
un
nn
niin
ngg
Low or high voltage.
Check that line voltage is within ±10% of rated
If voltage variation is more than ±10%, call power
nameplate voltage while motor is running.
company to adjust voltage.
High ambient (atmospheric) Check temperature of tank
Protect tank from direct sunlight.
temperature.
P
Pu
um
mp
p ssttaarrttss tto
oo
o ffrreeq
qu
ueen
nttllyy
Leaks in system.
Check plumbing for leaks.
Level switch.
Check for defective switch or switch out of adjustment.
Re-adjust or replace level switch.
Check valves leaking.
Make sure check valves are not leaking back.
Replace check valves if necessary.
LLiittttllee o
orr n
no
o w
waatteerr d
deelliivveerreed
d
Check valve stuck
Examine valve.
If stuck, free valve; if installed backwards, reverse it.
or installed backwards
Low voltage.
Check voltage at control panel with pump running.
Install larger wire from meter to control panel.
If necessary, have power company raise supply voltage.
Plugged intake screen.
Pull pump and check condition of screen.
Clean or replace as necessary.
Check valve at pump
Pull pump and examine check valve.
Free check valve.
discharge stuck.
Pump doesn’t develop
Check pump curve against operating conditions.
Replace pump with “higher head” pump.
enough pressure (“head”).
TROUBLESHOOTING GUIDE
T
Taab
bllee 1
1:: R
Reecco
om
mm
meen
nd
deed
d FFu
ussiin
ngg D
Daattaa
6
60
0 H
Hzz//1
1 P
Ph
haassee 2
2--W
Wiirree C
Caab
bllee
M
Maaxx
LLo
occkkeed
d
FFu
ussee SSiizzee
V
Vo
ollttzz//H
Hzz//
LLo
oaad
d
R
Ro
otto
orr
SSttaan
nd
daarrd
d//
M
Mo
od
deell
H
HP
P
P
Ph
haassee
A
Am
mp
pss
A
Am
mp
pss
D
Du
uaall EElleem
meen
ntt
10DOM05121
1/2 115/60/1
11.0
30.0
15
20DOM05121
1/2 115/60/1
9.5
30.0
15
30DOM05121
1/2
115/60/1
9.5
30.0
15
10DOM05221
1/2 230/60/1
5.5
14.5
10
20DOM05221
1/2 230/60/1
4.6
14.5
10
30DOM05221
1/2 230/60/1
4.6
14.5
10
20D1
1/2 115/60/1
10.6
30.0
15
20D1
1/2
230/60/1
5.3
14.5
10
