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Fault Diagnostics
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VIB. Troubleshooting
Dishwasher troubleshooting
Fault Steps to determine failure Failure Resolution
No power
1. Check wiring connections to
dishwasher and if supply voltage is
≈ 120V.
2. Check if wiring connections at
interference suppressor (RFI filter)
are properly seated.
3. Disconnect power and check
resistance between following
terminals
. For all measurements, push
on/off switch to close it.
A. Black wires of interference
suppressor (RFI filter) “L1”
terminals.
B. On/off switch “L1” terminals 4
(black wire) and 3 (gray-black
wire to control).
C. “N” white wire and control
connector 6-4 yellow wire (with
door closed
).
D. White wires of interference
suppressor “N” terminals.
1. If dishwasher connections are
improper, replace cord / wiring with
minimum 14 awg (rated 75˚C). If
voltage isn’t 120V, check for open
circuit breakers or fuses.
2. If connectors aren’t seated, reseat
them. If connectors are damaged,
replace wire harness.
3. Replace parts as follows:
A. If resistance is ≈ 0 Ω go to step
3B. If not, replace interference
suppressor (RFI filter).
B. If resistance is ≈ 0 Ω, go to step
3C. If not, replace on/off switch.
C. If resistance is ≈ 0 Ω, control is
shorted and should be replaced.
If not, go to step 3D.
D. If resistance is ≈ 0 Ω, replace
on/off switch. If not, replace
interference suppressor.
No heat,
heating
error or
NTC error
1. Run customer service test program
and check if spray arms are turning.
2. Measure resistance between the
NTC orange wires.
3. Check resistance between red wire
from control to heater thermostat
and white or white-red (“N”) wire
from flow (pressure switch). Before
measuring, close the flow
(pressure) microswitch by removing
it from heater housing and pushing
the button.
4. Check resistance between
thermostat terminals and between
heating element terminals (r1).
5. With pressure switch removed,
check if heater pressure plate
moves freely.
1. If spray arms aren’t turning, see
Circulation Pump Not Running.
2. If resistance isn’t within the values
below, check NTC connections. If
connections are OK, replace NTC.
77º F (25ºC) 45840 Ω
22º F (50ºC) 16542 Ω
140º F (60ºC) 11067 Ω
3. If resistance is not
≈ 12 Ω, go to step
4. If resistance is ≈ 12 Ω, go to step 5.
4. If thermostat is open (∞ Ω), replace it.
If heating element is open (∞ Ω),
replace heater. If thermostat and
heating element aren’t open, replace
pressure switch.
5. If pressure plate moves freely,
replace control. If not, replace heater.