Heating Without Water - LG WD-803(4)0(W)(F)(H) Service Manual

I WD-1223(5)F(H)(B)/WD-1243(5)F(H)(B) / WD-1041(3)F(H)B / WD-102(4)1(5)F(H)B / WD-803(4)0F(H)B
(WASH) (RINSE)
PWB ASSEMBLY (MAIN)
220-240V~
I WD-803(4)0(W)(F)(H)/WD-102(4)1(5)W(F)(H)/WD-1042F(H)
PWB ASSEMBLY (POWER)
AC 220-240V

HEATING WITHOUT WATER

When pressing WASH
button at the same time after draining, is the water
level frequency 252 or more?
When pressing WASH
buttons at the same time while wash, is the water
level frequency between 220~240?
YES
Checking voltage between two pins as press
the power button is the voltage 220-240V~?
Are there any problem at air chamber, the hose or
pressure sensor?
Replace the PWB assembly.
(POWER or MAIN)
and RINSE )
, RINSE
NO
33
Replace the sensor
NO
(pressure).
Replace the PWB
NO
assembly (Main).
Clean the air chamber
and hose.
YES
Replace the sensor.
(pressure)