795-93884
11 of 36
3/4/2022
TROUBLESHOOTING GUIDE
CONDITION
POSSIBLE CAUSE
CORRECTION
P
ump
Pump does not
run
Machine is unplugged
Plug machine into outlet
Circuit breaker is tripped
Check breaker and correct. If problems persist,
contact Zep.
Pump motor is burned out Replace pump
Faulty switch
Replace switch
Pump runs but
does not pump
fluid
Pump filter screen is
clogged
Clear debris from around pump
Flexible metal hose
clogged
Clear debris from metal hose
Pump rubber discharge
hose clogged
Clear debris from hose or replace hose
Pump runs but
does not pump
fluid (external filter
units)
External filter is clogged
Replace external filter
Pump runs but is
noisy (Some noise
is normal).
Cavitation due to low
liquid level
Raise liquid level to correct level
O
pt
ion
al
L
igh
t
Light does not
turn on
Machine is unplugged
Plug machine into outlet
Light is not plugged into
electrical box
Plug lamp into electrical box
Circuit breaker is tripped
Check breaker and correct. If problems persist,
contact Zep.
Bulb is burned out
Replace bulb
Faulty switch (on lamp)
Replace lamp
REPLACEMENT PARTS
DESCRIPTION
PART NUMBER DRAWING REF.
Gas Spring
PWP0087
FIGURE 2(E)
Fuse Link
PWP0091
FIGURE 2(I)
Rocker Switch
PWP0090
FIGURE 2(Q)
Pump
PWP0086
FIGURE 2(U)
Pump Guard
PWP0103
FIGURE 2(V)
Tube, ½” ID
PWP0098
FIGURE 2(T)
Metal Flex Hose
PWP0095
FIGURE 2(N)
Foam Filter Block
PWP0089
FIGURE 2(X)
Filter Basket
PWP0094
FIGURE 2(Y)
Drain Shelf
PWP0104
FIGURE 2(O)
Flow Thru Brush
PWP0098
FIGURE 2(M)
External Filter
PWF0002
FIGURE 2(S)
