TROUBLE SHOOTING GUIDE:
PROBLEM
Machine won’t start.
Machine starts but won’t reach or hold running speed
(may be accompanied by a “clicking” noise).
Machine trips building circuit breaker
Circuit breaker in machine switch box trips
(burnishers only).
Operator feels A shock or “tingle” when operating
Machine.
WARNING: This complaint usually indi-
cates an electrical defect which can
result in serious personal injury. Do not
continue to operate the machine until
corrective action has been completed.
Machine “bogs down” during operation.
POSSIBLE CAUSE
• Power cord not properly plugged
into wall outlet.
• Blown building fuse or tripped
circuit breaker.
• Tripped machine circuit breaker
(burnishers only).
• Damaged power cord or plug.
• Broken connection or wire inside
switch box.
• Failed switch or circuit breaker
(burnishers only) inside switch box.
• Failed motor capacitor.
• Motor pigtail disconnected from
handle cord set.
• Failed motor.
• Failed motor starting switch.
• Building circuit is overloaded.
• An electrical short exists within the
machine.
• Pad is loaded with dirt or floor
finish residue.
• Low electrical supply voltage.
• Undersized extension cord.
REFER TO SECTION:
”MACHINE TRIPS BUILDING CIRCUITBREAKER”
Additional burnisher related possible causes:
• Faulty breaker.
• The handle is locked (on “floating head”
models).
• Using the wring pad.
• Using excessive amount of spray buff or
restorer.
Improper or no ground in wall outlet.
• Ground prong damaged or missing on
power cord.
• Ground (green) wire loose or missing inside
switch box.
• Terminal or uninsulated wire or stray wire
strand in contact with machine frame, handle
pipe, or switch box.
• Machine underpowered for application
EXAMPLE:
Using a 3/4 H.P. machine for
carpet scrubbing.
• Undersized extension cord.
• Low electrical supply voltage.
CORRECTION
• Fully engage plug with outlet receptacle.
• Replace fuse or reset circuit breaker.
• Reset circuit breaker.
• Replace with proper 3-wire cord and plug.*
• Tighten connection or replace wire.*
• Replace switch or circuit breaker.*
• Replace capacitor with one identical to the
original.*
• Connect properly and cover joint with
restraint (B525311).
• Repair or replace motor.*
• Replace both rotating and stationary
portions of switch.*
• Remove and turn off other electrical devices
on the same circuit or plug machine into a
different circuit.
• Locate and fix the short.*
• Replace and wash pad.
• Check voltage at wall outlet with an electrical
load on circuit. If less than 108 volts,
building wiring is probably inadequate. Plug
machine into a different circuit.*
• Refer to operation and care instruction for
proper cord size.
• Replace breaker.
• Unlock the handle to allow machine head to
float.
• Use buffing pads only. Never use a scrubbing
or stripping pad.
• Apply these materials very sparingly to a
floor. Excessive amounts are not necessary
and are sticky and resist pad rotation on the
floor.
• Replace plug or entire cord if damaged.*
• Replace or tighten wire.*
• Find and repair damaged or dislocated
conductor.*
• Use properly powered equipment.
• Refer to operation and care instructions for
proper cord size.
• Check voltage at wall outlet, if less than 108
volts under load, plug machine into a
different circuit.
B160719
revised 1/07
* MUST BE PERFORMED BY A QUALIFIED TECHNICIAN
.
