Table of Contents
Advertisement
TROUBLESHOOTING
TABLE
5-3
ELECTRICAL
FAULT ISOLATION
GUIDE
f
-·-----·
Failure
1.
Wili
not
operate
when
GO-Minute
urner
'S
set
Fault Location
-··-1
-l
--------_._--
a
lncorninq
power
--
,
.
.
,
-
I
D.
Faulty
timer
c
Wiring
i
(J.
Ignition
system
control
board
~
...
e.
Low
water
cutot
t
2.
Intermittent
operation
3.
Damaged
control
system
Refer
to
paragraph
5.43
-
3.
Exhaust
valve fails
to
close
d.
Exhaust
solenoid
valve
coil
b
Wiring
c.
Faulty
timer
4.
Indicator
light
off
(system
operating)
a.
Indicator
light
b.
Wiring
5. Buzzer fails to sound
at end of
cycle
a.
GO-Minute
timer contacts
b.
Buzzer
c.
Wiring
6. Will not stop operating
a.
60-Minute
timer motor
7.
System
fails to operate
upon
a.
RESET switch
pressing
RESET
switch.
b.
Wiring
c.
Ignition
control
board
5.4 ELECTRICAL
TROUBLE-SHOOTING
PROCEDURES
Before
performing
the
trouble-shooting
procedures
in this
section
the
serviceman
must
be familiar
with
the
function
of
all
controls
as described
in Section
3 and with
the
Principles
of
Operation
described
in
Section
4.
Electrical
trouble-shooting
procedures
which
follow
require
access
to components
and terminals
of the operating
controls
and
ignition
control
board.
Electrical
controls
are
reached
by
removing
the
lower
front
panel
as described
in paragraph
6.3.2. Wir-
ing
and
terminal
locations
are
shown
in
Figure
5-1.
Figure
5-2
shows
the
circuit
schematically.
5.4_1 Incoming Power
Before
trouble-shooting
any of the elec-
trical
parts
or
assemblies,
verify
that
power
is
being
supplied
to
the
Steam-It
input
power
terminals.
Incoming
power
is con-
nected
at
the
terminal
block
(Figure
7-1,
items
15,
16).
With
power
connected
to the
Steam-It,
an
ac
volt-meter
is
used
to
measure
120 volts
across
terminals
to lines
coded
L 1 (hot lead to wire number
5) and L2
(neutral
lead to wire
number
4).
If power
is
not
present,
the connection
to the Steam-It
is faulty.
If 120 volts
is
present,
and
the
cooker
will
not
operate,
the fault
lies within
the electrical
circuits
of the Steam-It.
S2127
Advertisement
Table of Contents
