Haier ESD 300 Series User manual

HAIER
ESD 300 and 400 Series
“Tall Tub”
UNDERCOUNTER
DISHWASHER
Machine Compartment
Service
Additional Service Programs include:
Door Components
Diagnostics
Pump Module Components

MACHINE COMPARTMENT
Wash Pump
assembly
Drain Pump
Assembly
Fill Valve
Electrical connection
Heater
Water temperature
thermistor
High Limit
Thermostat Float switch
FRONT

MACHINE COMPARTMENT
Wash Pump
assembly Drain Pump
Assembly
Notice
The drain pump and wash
pump assemblies are covered
in detail in the
Pump Module Service training
program.
Component diagnostics are
covered in the
Diagnostics training program.

MACHINE COMPARTMENT
Float and Float Switch
Dishwasher has a
time fill with a float
safety switch.
Water fill cycle is
90 seconds.
Float is held in place
with the float switch
cover

MACHINE COMPARTMENT
Float and Float Switch
Safety switch is encased in a plastic housing.
Float Switch front view

MACHINE COMPARTMENT
Float and Float Switch
Open the safety switch housing by releasing clips
and pulling door forward.
Float Switch front view

MACHINE COMPARTMENT
Float and Float Switch
Float safety switch
Float is secured from lifting out when
float switch cover is closed holding the
stem end within the cover.
Float stem properly
located on switch arm.

DIAGNOSTICS
Float Safety Switch
Float Safety Switch is
Normally Open
Switch CLOSED
in this position
NC
NO

MACHINE COMPARTMENT
Float and Float Switch
Replace the float switch housing by opening cover and
releasing the float. Then unscrew nut inside of tub.

MACHINE COMPARTMENT
Water Temperature Thermistor
Water temperature is monitored with a thermistor
mounted in the bottom of the pump housing.