Southbend SEZ/3 manual Unit Not Heating Up, on Light Not Lit, Disconnect Power AT Circuit Breaker

SEZ SERIES COUNTERTOP STEAMERS TROUBLESHOOTING

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).

	Does voltage
No		Yes
	match serial plate
	voltage?

DISCONNECT POWER AT CIRCUIT BREAKER.

Check resistance between contactor terminals

(see Figure 8 on page 25).

	Is
	measured resistance
No	consistent with the table	Yes
	in Figure 8 on

Check voltage on side C and D on control panel

fuse block (see Figure 7 on page 24).

	Does voltage
Yes		No
	match serial plate
	voltage?

	page 25)?
Replace elements		Check main fuses and
and main fuses		replace as needed
(see Figure 9 on page		(see Figure 9 on page
26).		26).

Check voltage across terminals 1 and 2 of terminal block (see Figure 7 on page 24).

Does voltage

No match serial plate voltage?

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.

Replace control panel

fuses.

Yes

Test power switch or adjust so	Replace “ON” light;
that it is actuated properly by	continue on next page.
cam on valve shaft. Replace
switch as necessary
(see Figure 10 on page 27).

TROUBLESHOOTING

OPERATOR’S MANUAL 1183437 PAGE 19