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Mainstreet Equipment 541CG2LK Service Manual

Gas convection ovens
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Service Manual
Gas Convection Ovens
¾"
Models: 541CG1L, 541CG1N, 541CG2LK, 541CG2NK
NOTICE
This manual is for a certified service technician and should not be used by those who are not properly trained.
This manual cannot cover all possible conditions that may occur and is not intended to be all encompassing.
You should read this manual in its entirety and the specific repair you wish to do prior to starting the repair.
This will allow you to determine if you have the correct tools, instruments, and skills to perform the procedure.
REVISED: 03/2022

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Summary of Contents for Mainstreet Equipment 541CG2LK

  • Page 1 Service Manual Gas Convection Ovens ¾" Models: 541CG1L, 541CG1N, 541CG2LK, 541CG2NK NOTICE This manual is for a certified service technician and should not be used by those who are not properly trained. This manual cannot cover all possible conditions that may occur and is not intended to be all encompassing.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Part Testing .

  • Page 3: Troubleshooting

    TROUBLESHOOTING Problem Possible Solution Ensure gas supply is turn on Ensure gas supply is at the correct pressure Ensure unit is plugged in and has correct voltage Ensure unit power switch is on Burner will not turn on Ensure doors are closed and cook switch is engaged Check thermostat is set above current inside oven temperature Check ignition module is not locked out with RED LED light blinking Check surface igniter...

  • Page 4: Part Testing

    PART TESTING Fig . 2 CAUTION: Components can be HOT MAIN POWER SWITCH Fig . 1 1 . Check for continuity, disconnect wires from rear terminals on switch, check between middle and lower terminals when 'ON' , if none found, replace switch, if found move to next check below .

  • Page 5: Fan Speed Switch

    PART TESTING Fig . 5 CAUTION: Components can be HOT FAN SPEED SWITCH Fig . 4 1 . Disconnect wires from rear of switch, check continuity between middle and top terminals when switch in 'HI' position, then check continuity between middle and lower terminals when switch is in 'LOW' position;...

  • Page 6: Timer

    PART TESTING CAUTION: Components can be HOT TIMER 1 . Disconnect wires from rear of timer, turn timer knob to 0 minutes, check for Fig . 9 continuity across terminals on rear of Fig . 8 switch, if none is found, replace timer . (Fig .

  • Page 7: Transformer

    PART TESTING CAUTION: Components can be HOT Fig . 14 TRANSFORMER 1 . Check for 120 volts at terminals (Fig . 14A), if voltage is not correct, replace . 2 . Check for 24 volts at terminals (Fig . 14B), if voltage is not correct, replace .

  • Page 8: Door Switch

    PART TESTING Fig . 18 CAUTION: Components can be HOT DOOR SWITCH 1 . Disconnect wires from rear of switch, check continuity between terminals when switch lever is 'closed'; position; if continuity is not found in 'closed' position, replace switch; Fig .

  • Page 9: Surface Igniter

    PART TESTING Fig . 21 CAUTION: Components can be HOT SURFACE IGNITER 1 . Visually check that surface igniter 'glows' when thermostat first calls for heat . Fig . 22 2 . Check with unit 'ON' and thermostat calling for heat . (Fig . 21 & 22) 3 .

  • Page 10: Gas Solenoid Valve

    PART TESTING Fig . 27 CAUTION: Components can be HOT GAS SOLENOID VALVE 1 . Ensure gas is being supplied to unit, check incoming pressure using manometer on inlet side of valve . 2 . Check if solenoid valve is getting 24 VAC, if no voltage, check ignition module, if voltage is found, and still no gas is coming through, replace gas valve .

  • Page 11: Part Replacement

    PART REPLACEMENT Fig . 30 CAUTION: Components can be HOT FAN MOTOR 1 . Turn unit off, disconnect gas and electrical connections . 2 . Remove right side panel to disconnect motor Fig . 31 Fig . 32 wires from inside plug . (Fig . 30) 3 .

  • Page 12: Internal Gas Regulator

    PART REPLACEMENT Fig . 42 CAUTION: Components can be HOT INTERNAL GAS REGULATOR 1 . Turn unit off, disconnect gas and electrical connections . 2 . Remove hex bolts holding right side on with an 8mm socket . 3 . Loosen and remove compression nut and unit joint from either side of regulator to remove from unit .

  • Page 13: Door Latch Removal

    PART REPLACEMENT CAUTION: Components can be HOT DOOR LATCH REMOVAL Fig . 45 1 . Turn off power switch and gas supply to unit . 2 . Disconnect unit from power supply . 3 . Open front door(s) on unit to access latch . 4 .

  • Page 14: Wiring Diagram

    WIRING DIAGRAM...

  • Page 15: Parts Diagrams

    PARTS DIAGRAM PART # DESCRIPTION ITEM # Blower Motor - 2 Speed 5411010239 Blower Wheel 541010212 Temperature Probe 541170022 Oven Light 541130151 Gas Safety Valve - NG 541220079 Gas Safety Valve - LP 541220098 Panel Safety Switch 541080026 Burner Assembly See Burner Assembly Burner Orifice - LP 351302150211...

  • Page 16: Burner Assembly

    PARTS DIAGRAM BURNER ASSEMBLY PART # DESCRIPTION ITEM # Flame Sensor 541220004 Burner 54165002071 Flame Spreading Plate 54165002068 Surface Ignitor 5411170039...

  • Page 17: Control Panel Assembly

    PARTS DIAGRAM CONTROL PANEL ASSEMBLY PART # DESCRIPTION ITEM # Buzzer 541100086 Power Switch 541080141 Ignition Module 541150304 Timer 541120028 Transformer 541100149 Thermostat 541030169 Heat Light 541130140 Fan Speed Switch 541080141 Light Switch 541080141 Cool/Cook Switch 541080141...

  • Page 18: Door Assembly

    PARTS DIAGRAM DOOR ASSEMBLY PART # DESCRIPTION ITEM # Door Latch 54165002016 Door Assembly - Left 54165002014 Door Assembly - Right 54165002011...

This manual is also suitable for:

541cg1n541cg1l541cg2nk

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