Tech-Sheet---W10904613---Rev-B.pdf

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FOR SERVICE TECHNICIAN'S USE ONLY

NOTE: This sheet contains important Technical Service Data.

Tech Sheet Do not remove or destroy

Assembly: W109462A

Table of Contents

Table Caption: This table appears to be a table of contents for a service manual, likely for a dishwasher, outlining sections from safety and specifications to detailed troubleshooting and error code information. It provides a structured overview of the document's content, guiding the user to specific topics with corresponding page numbers.

Safety

FOR SERVICE TECHNICIAN'S USE ONLY

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.

Specifications

ELECTRICAL SUPPLY:

(Under load) 60 Hz, 120 VAC

LOWER SPRAY ARM ROTATION:

12 to 40 rpm

SUPPLY WATER FLOW RATE:

To fill 2 qt (1.9 L) in 27 seconds, 120 psi maximum, 20 psi minimum

UPPER SPRAY ARM ROTATION:

12 to 30 rpm

SUPPLY WATER TEMPERATURE:

120°F (49°C) (Before starting a cycle, run water from sink faucet until hot.)

REPAIR KITS

Vinyl Touch-Up Kits: 675576 (Blue), 676453 (White), 676455 (Gray)

WATER CHARGE:

0.9 gal. (3.5 L) approximate

Control Assembly

• A. Control is mounted to the console by snaps along the side and top and/or screw tabs along the top.
• B. Connector Box - Covers high-voltage connections. Must be removed first, then remove connector brace to service control and wiring harness.
• C. Connector Brace - Locks wiring harness connectors to control.

IMPORTANT: Connector box and brace must be reattached to control when service is completed.

C

FOR SERVICE TECHNICIAN'S USE ONLY

Steps to Access Control for Servicing

1. Connector Box Removal: Press inward on the retainer tabs as indicated while lifting up on the connector box. This can be done with a screwdriver or similar tool from either the top or bottom side of the control.
2. Connector Brace Removal: Locate the 3 brace locking tabs as shown. Push each tab in the direction required while applying light downward rotational force on the brace. It is easiest to unlock one tab at a time, working from one end of the brace to the other.
3. Once all 3 tabs are unlocked, pivot the brace to allow removal and gain access to the wiring harness connectors and control for required servicing.
6. Connector Brace Reattachment: Attach the brace hinge hooks into holes in the hinge tabs on control housing base. Pivot brace

until all 3 locking tabs snap into housing lid. Make sure the harness wires lay flat and are not pinched.

• Connector Box Reattachment: mounting holes, and snap box onto control housing lid. Make sure box is sitting flush against

Position the connector box over P4 and P5 connectors, insert the retainer tabs into brace both the brace and housing and harness wires are flat and not pinched.

FOR SERVICE TECHNICIAN'S USE ONLY

Meter Check of Loads and Fuses

Fuse Service Check:

F601 = Small triac load fuse

F600 = Wash pump motor fuse

Check operation of loads during Service Diagnostics cycle.

• ■ If any of the triac loads work (fill, dispenser, drain), F601 fuse is OK.
• ■ If all triac loads fail to work, F601 fuse could be open.
• ■ If wash pump motor runs, F600 is OK.
• ■ If wash pump motor does not run, F600 fuse could be open. If either fuse could be open, See the 'Fuse Resistance Check' section.

Fuse Resistance Check:

Unplug dishwasher or disconnect power. Measure resistance of fuses F600 and F601.

• a. Disconnect wash pump motor wiring jumper P5 from the control board.
• b. Using a resistance meter, measure the resistance between control board connection pins P5-2 and P6-3. See 'Control Pinout' diagram.

3. ■ If resistance is < 3 W , both fuses are OK.
4. ■ If resistance is > 3 W , replace control.

What To Do If Fuse Open:

Inspect and check resistance of all loads on fuses. If any loads are open, shorted, or have evidence of overheating or pinched wires, replace loads and/or repair wires.

FOR SERVICE TECHNICIAN'S USE ONLY

Control Pinout

Load must be connected for triac to operate correctly. Meter checks are best made at the control. See illustration below and 'Dishwasher Strip Circuits.'

Metering of Triac Loads

FOR SERVICE TECHNICIAN'S USE ONLY

FOR SERVICE TECHNICIAN'S USE ONLY

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FOR SERVICE TECHNICIAN'S USE ONLY

FOR SERVICE TECHNICIAN'S USE ONLY

FOR SERVICE TECHNICIAN'S USE ONLY

Customer Cycle Operation

To quickly advance through customer cycles, invoke the Rapid Advance mode by pressing HIGH TEMP - HEATED DRY - HIGH TEMP - HEATED DRY after starting the cycle.