Southbend SEZ/3 - Manual (Page 19)

SEZ S ERIES C OUNTERTOP S TEAMERS
T ROUBLESHOOTING
O PERATOR ’ S M ANUAL 1183437 P AGE 19
TROU
BLE
S
H
OOTI
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Unit Not Heating Up, “ON” Light Not Lit
Unit not heating up, “ON” light not lit.
Check that circuit breaker is ON and that proper voltage
is available at main fuse block.
DISCONNECT POWER AT CIRCUIT BREAKER.
Remove control panel without disconnecting plug.
Reconnect power.
Turn lever to “ON” position. Actuate door switch.
Check voltage between A and B on control panel fuse
block (see Figure 7 on page 24).
DISCONNECT POWER AT CIRCUIT BREAKER. Check voltage on side C and D on control panel
fuse block (see Figure 7 on page 24).
Check resistance between contactor terminals
(see Figure 8 on page 25).
Is
measured resistance
consistent with the table
in Figure 8 on
page 25)?
Check main fuses and
replace as needed
(see Figure 9 on page
26).
Replace elements
and main fuses
(see Figure 9 on page
26).
No Yes
Check for short circuit in
power switch (see
Figure 10 on page 27),
contactor and MOV
(see Figure 11 on page
28), and buzzer (see
Figure 12 on page 29).
Replace as necessary.
Check voltage across
terminals 1 and 2 of
terminal block (see
Figure 7 on page 24).
Yes No
Replace control panel
fuses.
Replace “ON” light;
continue on next page.
Test power switch or adjust so
that it is actuated properly by
cam on valve shaft. Replace
switch as necessary
(see Figure 10 on page 27).
No Yes
Does voltage
match serial plate
voltage?
No Yes
Does voltage
match serial plate
voltage?
Does voltage
match serial plate
voltage?