Southbend SEZ-5 - Manual (Page 18)

T ROUBLESHOOTING SEZ S ERIES C OUNTERTOP S TEAMERS
P AGE 18 O PERATOR ’ S M ANUAL 1181587
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ROUBLESHOOTING
This section contains a troubleshooting key and referenced flowcharts to assist a qualified service technician
in the servicing of an SEZ Series Countertop Steamer. Please note that the unit has a “SERVICE
REQUEST” light that illuminates in the event of certain water supply problems. Also note that when
the unit is turned on, there is an eight-minute time delay before the heating elements come on to
allow time for filling. Therefore, some procedures call for a waiting period when reconnecting power
to the unit or turning the unit on.
TROUBLESHOOTING KEY
Find the symptom below that corresponds to the malfunction, then turn to the corresponding figure and page.
Follow the flowchart on that page until the problem is solved.
Symptom Page
Unit Not Heating Up, “ON” Light Not Lit 19
Unit Not Heating Up Properly or Not Cooking Properly, “ON” Light Lit 20
Excessive Steam Coming from Pressure Relief Vent 21
“Service Request” Light Comes On During Operation 22
Buzzer Does Not Come On 23
TROUBLESHOOTING FIGURES AND PROCEDURES
Figure and/or Procedure Page
Voltage Check at Control Panel Fuse Block 24
Heating Element Resistance Check (at Contactor) 25
Main Fuse Replacement 26
Power Switch Continuity Check 27
Contactor and MOV Check 28
Timer and Buzzer Check 29
Door Switch Continuity Check 30
Float Switch Continuity Check 31
Controller Check 32
Inlet Float Valve Check 33
Pressure Switch Check 34
High-Limit Thermostats Check 35
Electric Schematic for 208-240 Volt 60 Hz or 220 Volt 50 Hz Model SEZ-3 36
Electric Schematic for 480 Volt Model SEZ-3 37
Electric Schematic for 208-240 Volt 60 Hz or 220 Volt 50 Hz Model SEZ-5 38
Electric Schematic for 480 Volt Model SEZ-5 39