Bissell PROHEAT PRO-TECH 7920 - Manual (Page 3)

B issell PowerSteamer® ProHeat™ Series Service Center Repair Guide
Printed February, 2001
1/30/2004 (Revision 1) 2
HOW TO USE THIS REPAIR GUIDE
The instructions in this Repair Guide pertain to the Bissell PowerSteamer ProHeat (#1698)
and the Bissell ProHeat ClearView(#1699). The information identifies those parts and
components which are most likely to cause problems in the operation of the unit. Using easy-to-
understand diagnostic procedures and step-by-step repair and/or replacement instructions, you
will be able to identify and repair a wide variety of common repair problems.
UL RECOMMENDED HIGH VOLTAGE TEST
In keeping with UL standards, a high voltage test should be performed on a vacuum or deep
cleaner any time the unit is in for repair, particular when the motor or other electrical components
have been replaced. High voltage testing is done for the safety of the customer. By applying an
over-voltage between "live" parts and various metal portions of the machine that are exposed to
wear, you proof-test the entire machine against grounds or shorts that could cause inconvenience,
fires or personal injury. High voltage testing is also a quality control measure. The possible future
failure in the insulation of any portion of the unit, whether due to workmanship, components or
materials, will be detected by this procedure prior to return of the unit back to the customer.
The normal test parameters are 1000 volts for one minute. There must be no indication of
dielectric breakdown at the uppermost values. After the unit is completely assembled, the high
voltage test required is the power cord to terminals in plug with the product switch on "on"
position. This test can be accomplished with any commercial available test equipment offered for
this purpose. The following testers are recommended:
Associated Research - Model 4025 or 4050 AJ
Slaughter - Model Series 2306 or 2307
Beckman Ind (Rosemont) - Model P-9A
Ground Continuity Test
This test is performed to determine that grounding continuity exists between the grounding blade
of the lower supply cord plug and the motor. This test should be performed any time electrical
connections are disturbed. Any suitable indicating device - ohmmeter, battery/buzzer
combination or the like may be used to determine compliance. Contact points are the ground
terminal in the plug to the shaft of the vacuum motor and the heater body.