Service Manual

For Service Technician Use Only
DIAGNOSTICS AND TROUBLESHOOTING (Cont.)
2-2
n
Whirlpool
®
and KitchenAid
®
Filtration and Maytag
®
24" Microltration Dishwashers
Safety
DANGER
Electrical Shock Hazard
Only authorized technicians should perform
diagnostic voltage measurements.
After performing voltage measurements,
disconnect power before servicing.
Failure to follow these instructions can result in
death or electrical shock.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Failure to do so can result in death or
electrical shock.
Replace all parts and panels before operating.
Voltage Measurement Safety Information
When performing live voltage measurements, you must do the following:
■ Verify the controls are in the off position so that the appliance does not start when energized.
■ Allow enough space to perform the voltage measurements without obstructions.
■ Keep other people a safe distance away from the appliance to prevent potential injury.
■ Always use the proper testing equipment.
■ After voltage measurements, always disconnect power before servicing.
IMPORTANT: Electrostatic Discharge (ESD) Sensitive Electronics
ESD problems are present everywhere. ESD may damage or weaken the electronic control assembly. The new control
assembly may appear to work well after repair is finished, but failure may occur at a later date due to ESD stress.
■ Use an antistatic wrist strap. Connect wrist strap to green ground connection point or unpainted metal in the
appliance
-OR-
Touch your finger repeatedly to a green ground connection point or unpainted metal in the appliance.
■ Before removing the part from its package, touch the antistatic bag to a green ground connection point or
unpainted metal in the appliance.
■ Avoid touching electronic parts or terminal contacts; handle electronic control assembly by edges only.
■ When repackaging failed electronic control assembly in antistatic bag, observe above instructions.
IMPORTANT SAFETY NOTICE — “For Technicians only”
This service data sheet is intended for use by persons having electrical, electronic, and
mechanical experience and knowledge at a level generally considered acceptable in the
appliance repair trade. Any attempt to repair a major appliance may result in personal
injury and property damage. The manufacturer or seller cannot be responsible, nor
assume any liability for injury or damage of any kind arising from the use of this data
sheet.