Viking DFUD040 - Troubleshooting Guide

614
TROUBLESHOOTING GUIDE ----DISHWASHER ----
PROBLEM PROBABLE CAUSE SOLUTION
Not Filling With Water 1. Water Valve off 1a. Turn water valve on
2. Undercarriage flooded 2a. Clogged air gap, hose, pump
(See continuous drain b. Loose waterline connection
c. Hole in system hose: pump, drain,
washer motor, spray arm
3. Open fill valve 3a. Replace fill valve
4. Clogged fill valve 4a.
High water pressure, stuck fill valve,
faulty pressure switch
5. Loose connection 5a. Check all wiring and repair
6. Door switch 6a. Open or switch out of bracket
7. Timer or selector open or burned 7a. Replace as needed
contacts
Unit always on or not 1. Check door switch. Door switch
turning on when door may :
(Interior light hot when a. Open a. Replace door switch
door first opened) b. Come loose from bracket b.
Replace bracket and switch, if needed.
c.
Have burnt wire ends (connector) c. Replace wire or wire connectors
d. Separated at seal d. Replace door switch
Check door switch bracket (lock guard).
Bracket may have a weak containing
arm for the micro switch.
Continuous Drain
(Undercarriage full of 1.Check for a clogged drain system 1a. Clear clog and advise customer on
water) In states where air gaps exist or how to maintain a clean air gap
in homes where an air gap is
installed, check for a clogged air
gap or drain hose.
2.
Any restriction from the drain pump 2a. In some cases two (2) drain hoses
can cause a build up of pressure may be connected causing a vortex
and a temporary separation of the at the connection. This vortex may
drain pump housing, thus filling the cause larger particles to clog in
drain hose or at vortex.
3.When the under carriage fills with Remember - anything can be found in
water a float safety switch is drain hose. Some things to watch for
activated causing the unit to go into are: toothpicks, fish bones, flatware,
a pump out mode. The dishwasher and crystal labels, seeds, broken toys,
must be disconnected from power etc.
and the water in the undercarriage
removed completely in order to
reset the dishwasher into a normal
mode.
4.Check overflow switch 4a. Replace open overflow switch