Service Manual

3-6
n
18” & 24” ADA Built-In Dishwashers
TESTING
For Service Technician Use Only
Control Board
SPECIFICATIONS
ELECTRICAL SUPPLY:
(Under Load): 60Hz 120V AC
SUPPLY WATER FLOW RATE:
To ll 4 qt (3.8 L) in 36 seconds, 100 psi maximum, 20 psi
minimum.
SUPPLY WATER TEMPERATURE:
120°F (49°C) (Before starng a cycle, run water from sink
faucet unl hot.)
WATER CHARGE:
4 qt. (3.8 L) Approximate
LOWER SPRAY ARM ROTATION:
20 TO 40 rpm
UPPER SPRAY ARM ROTATION:
15 TO 40 rpm
Component Tesng
TESTING DISHWASHER COMPONENTS FROM THE
CONTROL BOARD
Before tesng any of the components, perform the following
checks:
• The most common cause for misdiagnosed control
failure is poor connecons. Therefore, disconnecng,
inspecng and reconnecng wires will be necessary
throughout test procedures.
• All tests/checks should be made with a VOM or DVM
having a sensivity of 20,000 ohms-per-volt DC, or
greater.
• Check all connecons before replacing components,
looking for broken or loose wires, failed terminals, or
wires not pressed into connectors far enough.
• Voltage checks must be made with all connectors
aached to the boards.
• Resistance checks must be made with power cord
unplugged or power disconnected, and with wiring
harness or connectors disconnected from the control.
• The tesng procedures in this secon may require the
use of needle probes to measure voltage. Failure to use
needle probes will damage the connectors.
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.