V. TEMPERATTJRECONTROL
A. Tboubleshooting
Troubleshooting
The
Solid
State Temperature
Centrol
Verify output
from
the
load
side
of
the
solid
state control-
See
examplesA&Bbelow
No
power
(0
VAC) reading
exists across
the output
terminals
as in
example
A
indicating
a CLOSED
relay.
208-24o VAC
power
reading
exists across
the output
terminals
as in
exampie B
indicating
an OPEN
relay.
Check to be
sure
powel
is
present
(110
-120
VAC)
at both output
terminals of
the control to
ground
using
a
volt
meter.
Check
for
input
power
(208-240
VAC)
inro
the
input
terminals
of the
control.
Problem
with
power
distribution
to the element
or
open
cilcUit in
the element..See
troubleshooting
elements.
Find
the open
power'ledd
feeding
common
side of
output
circuit
o{
control.
Check
the following:
Potentiorneter
set
to call
for
heat;
onloll
switch
has
proper
continuity;
therrnocouple
is
properly
connected
and has
continuity.
No
208-240
VAC
power
Check electrical
utility to
griddle
such as the
main
circuit
breaker,
ofF
Check
continuity
of
power
supply
wiring
to the
control.
lf No:
Recitify
Condition.
lf Yes:
Replace
Control
CLOSED
OPEN