Service Manual

ManualsBrandsMARVEL ManualsBeverage CentersML24BCG0LS

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Table Of Contents

Cover Page
Section 0 (Table of Contents)
Section 1 (Introduction)
- 1.1 Unit Specifications
- 1.2 Serial Nameplate
- 1.3 Servicing
- 1.4 Basic Refrigeration Tools
- 1.5 Basic Installation
- 1.6 Electrical Requirements
Section 2 (Sealed System)
- 2.1 Introduction
- 2.2 Low Side Leaks
- 2.3 High Side Leaks
- 2.4 Restricted Capillary Tube
- 2.5 Access/Process Valves
- 2.6 Evaporator Frost Pattern
- 2.7 Measuring Evaporator Temperature
- 2.8 Re-charging
- 2.9 Temperature / Pressure Chart
Section 3 (Sealed System Components)
- 3.1. Toe Grill Removal
- 3.2: Warnings and Cautions
- 3.3 Accessing the Mechanical Compartment
- 3.4: Compressor
- 3.5: Condenser
  - 3.5.1: Remove the Condenser
  - 3.5.2: Install a New Condenser
- 3.6: Evaporator
  - 3.6.1: Remove the Evaporator
  - 3.6.2: Install a New Evaporator
Section 4 (Electrical Component Access)
- 4.1: Condenser Fan
- 4.2: Evaporator Fan Access
- 4.3: Thermistor Locations
Section 5 (User Interface Display)
- 5.1 Model Variations
- 5.3 User Interface Navigation – Beverage Centers
- 5.4 User Interface Navigation – Wine Coolers
- 5.5 User Interface Navigation – Refrigerated Drawers
- 5.5 User Interface Navigation – Beer Dispenser
Section 6 (Control System)
- 6.1 User Interface Display
  - 6.1.1 Removing the User Interface Display
  - 6.1.2 Installing a new User Interface Display
- 6.2: Main Control Board
- 6.3: Cabinet and Defrost Thermistors
- 6.4: Temperature Resistance Chart
- 6.5: Door Sensor
  - 6.5.1: Door Sensor Removal
  - 6.5.2: Door Sensor Replacement
- 6.6: Defrost Modes
- 6.7 Error Codes
Section 7 (Lights, Doors, Drawer, and Hinges)
- 7.1 LED Lighting
  - 7.1.1: Replacing the LED Light
- 7.2: Cabinet Door
  - 7.2.1 Door Removal
  - 7.2.2 Bottom Door Closer
- 7.3: Refrigerated Drawers
- 7.4: Doors / Drawers Handle Adjustment
- 7.5: Door Alignment /Adjustment
- 7.6: Gasket Adjust / Replace
- 7.7 Articulating Hinges
Section 8 (Evaporator Compartment Access)
- 8.1: Beverage Centers
- 8.2: Wine Coolers
- 8.3: Refrigerated Drawers
- 8.4: Evaporator Cover Drip Edge
Section 9 (Wiring Diagrams)
- 9.1 Block Diagram of Main Power Board
- 9.2 Schematic Diagram
- 9.3 Main Power Board Identification
Section 10 (Power On reset Mode)
- 10.1: Auto Self-Test
- 10.2: Manual Auto Test Mode
- 10.3: Control Types
Section 11 (Quick Reference Troubleshooting)
Section 12 (Diagnostic Flow Charts)
Section 13 (Gathering Service Data)
- 13.1: PROGRAM PORT
Section 14 (Beer Dispenser)
- 14.1: Interior mechanical / electrical components
- 14.2: Main Control Board Access
- 14.3: Machine Compartment
- 14.4: Excerpt from Owners / Maintenance Instruction Guide
Section 15 (Dual Zones)
- 15.1: User Interface Control
- 15.2: Operation
- 15.3: Characteristics
- 15.4: Dual Zone Compartment Air Flow
- 15.5: Divider Removal
- 15.6: Damper Operation
- 15.7: Compartment Fan Operation
- 15.8: Heater Operation
- 15.9: Thermistors
- 15.10: Evaporator Access
- 15.11: Interior LED’s
- 15.12: Defrost / Drip Time
- 15.13: Refrigeration and Mechanical
Section 16 (Refrigerator Freezers)
- 16.1: User Interface Control
- 16.2: Operation
- 16.3: Characteristics
- 16.4: Damper Operation
- 16.5: Fan Operation
- 16.6: Thermistors
- 16.7: Refrigeration and Mechanical
- 16.8: Evaporator
- 16.9: Defrost
- 16.10: ACCESS TO THE DEFROST COMPONENTS
- 16.11: RFI (Refrigerator Freezer- Ice Maker)
Section 17 (Outdoor Models)
- 17.1: Operation
- 17.2: Characteristics / Differences
- 17.3: Fans
- 17.4: Thermistors
- 17.5: Control Type
- 17.6 : Control Functions
- 17.7: Control Locations per Model
- 17.8: Machine Compartment
- 17.9: Main Power Board Access
- 17.10: Display Access and Replacement
- 17.11: Thermistor Resistance
- 17.12: Wiring Diagram
- 17.13: Generic Trouble shooting Charts
- 17.14: Refrigeration and Mechanical
Section 18 (Prime Control)
- 18.1: Control Type
- 18.2: Control Functions
- 18.3: Fans
- 18.4: Thermistors
- 18.5: Machine Compartment
- 18.6: Thermistor Resistance
- 18.7: Wiring Diagram
- 18.8: Generic Trouble shooting Chart
- 18.9: Refrigeration and Mechanical
Section 19 (Clear Ice Machines)
- 19.1 Control Operation
- 19.2: Control System
- 19.3: Interior Features
- 19.4: Machine Compartment Components
- 19.5: Diagnostic Test Modes
- 19.6: Diagnostic Charts
- 19.7: Trouble Shooting
- 19.8: VAC Wiring Diagram and Schematics
- 19.9: Specifications:
- 19.10: Production and Harvest Guidelines
Section 20 (Service Kits / Bulletins)
- 20.1: Service Bulletin # 41013862Mullion Condensation on Refrigerated Drawers
- 20.2: SERVICE BULLETIN # 41013861EVAPORATOR REPLACEMENT KIT
- 20.3: SERVICE BULLETIN # 41013995 Rev CContact between the Door and Door Sensor
- 20.4: SERVICE BULLETIN # 41014167Slotted Condenser Shroud
- 20.5: SERVICE BULLETIN # 41014168Showroom Mode Alarm
- 20.6: SERVICE BULLETIN # 41014169Evaporator / Heat Exchanger Replacement(RF and RFI Models ONLY)
- 20.7: SERVICE BULLETIN # 41014241Shelf Shim Kit
- 20.8: Service Bulletin # 41014242Miscellaneous Control Communication Errors
- 20.9: Service Bulletin # 41014243Replacement of MP Door Skins
Section 21 (Customer Service Contact Information)
Section 22 (Notes)
Back Page

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NOTE: See the following photos for reference.

Wiring Harness A

1. Locate and remove the Phillip’s head screw which secures the main power board

mounting bracket to the cabinet frame.

2. Remove the power connector at the bottom, left rear of the main power board (see

above photo).

3. Plug connector “1” on harness A into the POWER terminal on the main power board.

4. Attach the original connector previously removed from the POWER terminal to

connector “2” on harness A.

5. Plug the remaining connector “3” into the adjoining terminal on the power supply

from the kit.

Wiring Harness B

1. Locate connector “4” on harness B. The wire will be identified as “Power Supply”.

Plug this connector into the remaining terminal on the power supply from the kit.

2. Locate the yellow and black harness extending through the upper, left hand corner

of the machine compartment. The connector will be marked as “Mullion Heater”.

The wire will be coiled and unplugged as seen in picture above.

3. Plug the coiled connector (step 2) into the matching yellow and black wire on

harness B, connector “6”. It is also marked as “Mullion Heater”.

4. The remaining connector “5” will be plugged into the “Aux C” terminal on the main

power board.

5. At this time, the paper can be peeled off the adhesive tape on the bottom of the

power supply. With the power supply in one hand, reach between the main power

board and the condenser fan and place the power supply in a position where it will

be out of the way. Press down on the power supply to adhere into place. The wires

can be routed over the top of the main power board.

6. Place the main power board mounting bracket back into position. Confirm that the

rear slot on the mounting bracket is secured by the positioning tab on the bottom of

the machine compartment. Take care not to pinch any wires during this step.

7. The main power board mounting bracket can now be re-secured to the cabinet

frame using the Phillip’s screw.

8. If necessary the wires can be secured together with a nylon wire tie.