Maytag WU100 Manual page 52

CAUTION: Always disconnect power supply
before making any electrical checks.
Hot Water Temperature Too Cool
Water valve. Check both coils
( O R G t o W h i t e ) f o r c o n t i n u i t y .
N o c o n t i n u i t y o n e i t h e r c o i l , r e -
place water valve. Caution: Do
not test water valve with a
motor test cord as this valve
operates on low voltage.
Microprocessor. Test using cir-
cuittest board Part No. 38206
M
Refer to respective section covering all
d i s h w a s h e r s f o r m e c h a n i c a l c h e c k s .
Thermostat. Check for con-
N.
tinuity between thermostat ter- N$;U
minats. No continuity, reptace lffimf
thermostat.
\J
H e a t i n g e l e m e n t . C h e c k f o r
c o n t i n u i t y b e t w e e n h e a t i n g
e l e m e n t t e r m i n a l s . N o c o n -
t i n u i t y , r e p l a c e h e a t i n g e l e -
m e n t .
H e a t e r r e l a y . C h e c k r e l a y c o i l ,
W h i t e t o Y e l l o w , f o r c o n t i n u i t y .
N o c o n t i n u i t y , r e p l a c e h e a t e r
f : : ,
relay. With the relay coil ener- ^. r', riti\
g i z e d c h e c k f o r l i n e v o l t a g e i
" t "
from Yellow on relay switch to i-r. .1
W h i t e o n t h e h e a t i n g e l e m e n t .
No voltage, replace heater
relay. Caution: This is an elec-
trically hot check.
M i c r o p r o c e s s o r . T e s t u s i n g
circuit test board Part No.
3 8 2 0 6 .
T o u c h p a d . l f L E D i n d i c a t o r
3::; H J:il:,# : i;'::fJ,,ffiffi ,
processor checks okay, re-
p l a c e t o u c h p a d .
Refer to respective section covering
d i s h w a s h e r s f o r m e c h a n i c a l c h e c k s .
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a l l