26 309884
Advanced Troubleshooting
General Problem: Circuit Breaker is Tripping
SPECIFIC PROBLEM
CAUSE
SOLUTION
Building circuit breaker opens
as soon as sprayer is turned on.
Sprayer electrical wiring is pinched, or insulation
is damaged.
Wires between pressure control switch and
control board are pinched.
Repair or replace any damaged wiring or
terminals. Securely reconnect all wires.
Motor armature is shorting.
Check for shorts using armature tester
(growler), or perform spin test (see
Motor
Diagnostics
on page 32). If shorts are
evident, replace motor using
Motor Kit
245063.
Control board is damaged.
CAUTION:
Do not perform control board
diagnostics until you have determined that the
armature is good. A bad motor armature can burn
out a good control board.
See
Control Board Diagnostics
on page
32, and replace control board if damaged
using
Control Board Kit
243228.
Building circuit breaker opens
as soon as sprayer is plugged
into outlet, and sprayer is NOT
turned on.
NOTE:
Remove right
enclosure mounting screws,
and pull right enclosure away
from drive housing.
Take care
t
t
ll
th l
d f
Sprayer electrical cord is damaged.
Unplug sprayer electrical cord. Disconnect
black electrical cord wire at Power switch (B),
and unplug in-line connection of white
electrical cord wire. Plug in electrical cord,
and test voltage between black and white
electrical cord wires. Meter must read
85 to130 Vac.
Replace electrical cord if no voltage.
to not pull on the leads from
the electrical cord and the
Power switch (B).
Sprayer Power switch (B) is damaged.
Unplug sprayer electrical cord
,
and
disconnect wires from Power switch (B).
Check resistance of switch with ohmmeter.
Reading must be infinity with Power switch
OFF, and zero with Power switch ON.
Replace Power switch if damaged.
See also “Basic Electrical Problems” on page 24 and “Sprayer Wiring Problems” on page 25.
