Diagnostics & Troubleshooting; Diagnostics; Diagnostic Guide - KitchenAid Pro Line KHWV01RSS Technical Education

DIAGNOSTICS & TROUBLESHOOTING
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
IMPORTANT
Electrostatic Discharge (ESD)
Sensitive Electronics
ESD problems are present everywhere.
ESD may damage or weaken the elec-
tronic 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 anti-static wrist strap. Connect
wrist strap to green ground connection
point or unpainted metal in the appli-
ance.
-OR-
Touch your finger repeatedly to a green
ground connection point or unpainted
metal in the appliance.
• Before removing the part from its pack-
age, touch the anti-static bag to a green
ground connection point or unpainted
metal in the appliance.
• Avoid touching electronic parts or termi-
nal contacts; handle electronic control
assembly by edges only.
• When repackaging failed electronic con-
trol assembly in anti-static bag, observe
above instructions.

DIAGNOSTICS

WARNING
Electrical Shock Hazard

DIAGNOSTIC GUIDE

Before servicing, check the following:
• Make sure there is power at the wall outlet.
• Has a household fuse blown or circuit breaker
tripped? Time delay fuse?
• Are both hot and cold water faucets open and
the water supply hoses unobstructed?
• All tests/checks should be made with a VOM
(volt-ohm-milliammeter) or DVM (digital-volt-
meter) having a sensitivity of 20,000 ohms
per volt DC or greater.
• Check all connections before replacing
components. Look for broken or loose wires,
failed terminals, or wires not pressed into
connectors far enough.
• A potential cause of a control not function-
ing is corrosion on connections. Observe
connections and check for continuity with
an ohmmeter.
• Connectors: Look at top of connector. Check
for broken or loose wires. Check for wires not
pressed into connector far enough to engage
metal barbs.
• Resistance checks must be made with power
cord unplugged from outlet, and with wiring
harness or connectors disconnected.
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