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Manafacture: Southbend File size: 1.23 mb File name: sez-0103.pdf Language of manual:

Check voltage across terminals 1 and 2 of terminal block (see Figure 7 on page 24). Yes No Replace control panel fuses. No Yes Does voltage match serial plate voltage? No Yes Does voltage match serial plate voltage? Does voltage match serial plate voltage? DISCONNECT POWER AT CIRCUIT BREAKER. Check resistance between contactor terminals (see Figure 8 on page 25). 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). OPERATOR’S MANUAL 1183437 PAGE 19 TROUBLESHOOTING TROUBLESHOOTING SEZ SERIES COUNTERTOP STEAMERS Unit Not Heating Up Properly or Not Cooking Properly, “ON” Light Lit TROUBLESHOOTING Unit not heating up properly or not cooking properly, “ON” light lit. Reconnect power to unit. Turn unit on. WAIT 5 MINUTES. Does contactor “click” on and stay on for at least 2 minutes? No Yes DISCONNECT POWER AT CIRCUIT BREAKER. DISCONNECT POWER AT CIRCUIT BREAKER. Remove control panel. Remove control panel. Check resistance between contactor terminals and replace elements as necessary (see Figure 8 on page 25). Check door switch for continuity (see Figure 13 on page 30). Reconnect door switch lead wires. Remove rear cover. Check pressure switch for proper operation (see Figure 17 on page 34). DISCONNECT POWER AT THE CIRCUIT BREAKER. Check all three main fuses; replace as necessary (see Figure 9 on page 26). Open door; depress and hold door switch. Continuity? Replace door switch. No Yes Pressure switch OK? Check and replace contactor (see Figure 11 on page 28) and/or controller (see Figure 15 on page 32), as necessary. Replace pressure switch. No Yes Check high-limit thermostats (see Figure 18 on page 35). High-limit thermostats OK? Replace high-limit thermostats as necessary. No Yes PAGE 20 OPERATOR’S MANUAL 1183437 SEZ SERIES COUNTERTOP STEAMERS TROUBLESHOOTING Excessive Steam Coming from Pressure Relief Vent DISCONNECT POWER AT CIRCUIT BREAKER. Excessive steam coming from pressure relief vent. Check pressure switch for proper operation (see Figure 17 on page 34). Pressure switch OK? NoYes Remove control panel, but leave plug connected. Check controller (see Figure 15 on page 32). Replace pressure switch. Yes Controller OK? No Check contactor and Replace controller. replace as necessary (see Figure 11 on page 28). OPERATOR’S MANUAL 1183437 PAGE 21 TROUBLESHOOTING TROUBLESHOOTING TROUBLESHOOTING SEZ SERIES COUNTERTOP STEAMERS “Service Request” Light Comes On During Operation “Service Request” light comes on during operation. Is water level at normal level in cavity? Yes No Check for adequate water pressure to unit. DISCONNECT POWER AT CIRCUIT BREAKER. Check controller (see Figure 15 on page 32). Turn unit off and check that unit drains fully. Open door. Turn unit back on and wait 20 minutes. DISCONNECT POWER AT CIRCUIT BREAKER. Yes No High-limit thermostats OK? Yes No Controller OK? Check high-limit thermostats (see Figure 18 on page 35). Replace high-limit thermostats Replace controller. as necessary. Check water solenoid (see Figure 16 on page 33). Check controller (see Figure 15 on page 32) and replace as necessary. No Yes Water solenoid OK? Replace water solenoid. Remove screen from strainer and clean or replace as necessary. Reassemble, reconnect, and recheck the steamer. If the Service Request light still comes on, examine the following for obstructions or deposits: pressure regulator, solenoid, and check valve. Clean or replace as necessary. PAGE 22 OPERATOR’S MANUAL 1183437 SEZ SERIES COUNTERTOP STEAMERS TROUBLESHOOTING Buzzer Does Not Come On Buzzer does not come on. DISCONNECT POWER AT CIRCUIT BREAKER. Remove control panel. Set timer for five minutes. Does timer time down? NoYes Yes No Continuity? Remove buzzer lead wires from timer. Check timer (see Figure 12 on page 29). Replace buzzer. Replace timer (see Figure 12 on page 29). Replace timer. OPERATOR’S MANUAL 1183437 PAGE 23 TROUBLESHOOTING TROUBLESHOOTING SEZ SERIES COUNTERTOP STEAMERS Figure 7 Voltage Check at Control Panel Fuse Block TROUBLESHOOTING Door Switch Control Panel Fuse Block Power Switch Terminal Block “SERVICE REQUEST” Light “ON” Light 1. DISCONNECT POWER AT CIRCUIT BREAKER. 2. Remove control panel without disconnecting plug. 3. Turn lever to “ON” position. 4. Reconnect power. 5. Place leads as shown for test being performed. 6. Check that the voltage is in the range 200 to 240 volts. PAGE 24 OPERATOR’S MANUAL 1183437 SEZ SERIES COUNTERTOP STEAMERS TROUBLESHOOTING Figure 8 Heating Element Resistance Check (at Contactor) B A Contactor (top view) C 1. DISCONNECT POWER AT CIRCUIT BREAKER. 2. Remove control panel. 3. DO NOT REMOVE HEATING ELEMENT LEAD WIRES FOR THIS TEST. 4. Place test leads between terminals A and C on left side of contactor. 5. Check the resistance and compare to the allowable range in the following table: Model SEZ/3 Model SEZ/5 Allowable Resistance (Ohms) Allowable Resistance (Ohms) Three-Phas...

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