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Fri-Jado MC 75 - User Manual

Fri-Jado MC 75
108 pages
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Service Manual Modular Counter Hot and Cold form 9123791 rev.03/2017
WWW.FRIJADO.COM
Models:
MC 75 and 100 Hot Full Service. Curved and Square glass
MC 75 and100 Hot Self Service. Curved and Square glass
MC 75 and100 Cold Full Service. Curved and Square glass
MC 75 and100 Cold Self Service. Curved and Square glass
Curved and Cube underframe
SERVICE MANUAL
MODULAR COUNTER HOT AND COLD MERCHANDSERS
- NOTICE -
This manual is prepared for the use of trained Service Technicians and
should not be used by those not properly qualified. If you have atten-
ded a trianing for this product, you may be qualified to perform all the
procedures in this manual.
This manual is not intended to be all encompassing. If you have not
attended training for this product, you should read, in its entirety, the
repair procedure you wish to perform to determine if you have the ne-
cessary tools, instruments and skills required to perform the procedure.
Procedures for which you do not have the necessary tools, instruments
and skills should be performed by a trained technician.
Reproduction or other use of this Manual, without the express written
consent of Fri-Jado, is prohibited.
Curved glass
Square glass

Table of Contents

Questions and Answers

  • F
    fordmelindaAug 12, 2025
    Why does the main fuse or breaker keep blowing on my Fri-Jado MC 75 Display Case?
    • J
      Jodi ManningAug 12, 2025
      The main fuse or breaker might be blowing in your Fri-Jado Display Case due to several reasons. It could be incorrect wiring, a shorted heating element or blower (self service only), or general wiring shorts. To resolve this, check the wiring for proper connections and inspect the heating element and wiring for any shorts.
  • D
    Debra LucasAug 16, 2025
    Why is there no heating in my Fri-Jado MC 75 Display Case?
    • J
      Joseph MillerAug 16, 2025
      If there's no heating in your Fri-Jado Display Case, several factors could be the cause: * A malfunctioning heating element. * A malfunctioning contactor K1. * A tripped safety thermostat (self service only). * Loose wiring. * A malfunctioning thermostat. * Loose sensor wiring or a malfunctioning sensor. * A malfunctioning blower for heating (self service only). To address this, inspect and replace the heating element, contactor K1, and thermostat. Reset the safety thermostat if it's tripped. Check and secure any loose wiring. Also, check the sensor wiring and replace the sensor if necessary, and check the blower for heating.
  • M
    Megan SimmonsAug 20, 2025
    What to do if there is no power to the cabinet controls of my Fri-Jado Display Case?
    • R
      Roger LewisAug 20, 2025
      If there is no power to the cabinet controls, it could be due to several reasons: 1. The main breaker might be open: Check the main breaker. 2. The safety thermostat might be tripped (self service only): Reset the safety thermostat. 3. The heating switch might have a malfunction: Inspect and replace the heating switch. 4. The wiring might be loose: Check and secure any loose wiring.
  • N
    Natalie CampbellAug 25, 2025
    How to fix the illumination on a Fri-Jado MC 75?
    • G
      Gina AndrewsAug 25, 2025
      If the illumination isn't working on your Fri-Jado Display Case, it could be due to a few reasons. The lamp might be malfunctioning, the tumble switch might be faulty, the electronic ballast could be broken, or the wiring might be loose. Try replacing the lamp first. If that doesn't work, inspect and replace the tumble switch and check/replace the electronic ballast. Also, check and secure any loose wiring.
  • J
    Jerry FinleyAug 27, 2025
    Why does the heating stay on constantly in my Fri-Jado MC 75?
    • B
      Betty CampbellAug 27, 2025
      If the heating stays on constantly in your Fri-Jado Display Case, it could be due to a few reasons: a malfunctioning contactor K1, a sensor not in the right position, a sensor malfunction, or a thermostat malfunction. To solve this, inspect and replace contactor K1, ensure the sensor is positioned correctly, and inspect/replace the sensor and thermostat.
  • E
    Elizabeth GordonAug 31, 2025
    What causes the safety thermostat to trip on my Fri-Jado MC 75 Display Case (self service)?
    • Y
      ymccormickAug 31, 2025
      The safety thermostat in your self-service Fri-Jado Display Case might be tripping due to a few reasons: a blower for heating malfunction, the thermostat setting, or a thermostat malfunction. Check the blower for heating, adjust the thermostat setting, and inspect/replace the thermostat.
  • H
    Heidi Herrera MDSep 4, 2025
    What to do if there is no indication on the electronic thermostat of my Fri-Jado MC 75 Display Case?
    • L
      Loretta BallardSep 4, 2025
      If there's no indication on the electronic thermostat of your Fri-Jado Display Case, it could be due to a malfunctioning electronic thermostat, a tumble switch malfunction, or loose wiring. Inspect and replace the electronic thermostat and tumble switch. Also, check and secure any loose wiring.
  • J
    jeremysmithSep 7, 2025
    Why isn't the blower motor running in my Fri-Jado MC 75 self-service unit?
    • W
      William OconnorSep 7, 2025
      If the blower motor in your self-service Fri-Jado Display Case isn't running, it could be because the blower is inoperative or the wiring is loose. Inspect and repair the blower, and check and secure any loose wiring.

Summary

General Technical Data

Removal and Replacement of Parts (Hot Version)

SIDE PANELS

Remove/install side panels.

FRONT PANEL

Remove/install front panel.

THERMOSTAT (DANFOSS ERC 211)

Remove/replace Danfoss ERC 211 thermostat.

TOP SHELVES

Remove/replace top shelves.

BOTTOM SHELF

Remove/replace bottom shelf.

ELECTRONIC BALLAST

Remove/replace electronic ballast.

SAFETY THERMOSTAT (MC 100 HOT SELF SERVICE)

Remove/replace safety thermostat.

BLOWER (SELF SERVICE)

Remove/replace blower assembly.

Removal and Replacement of Parts (Cold Version)

SIDE PANELS

Remove/install side panels.

FRONT PANEL

Remove/install front panel.

THERMOSTAT (DANFOSS ERC 213)

Remove/replace Danfoss ERC 213 thermostat.

TEMPERATURE SENSOR

Remove/replace temperature sensor.

DEFROST SENSOR

Remove/replace defrost sensor.

LAMP HOLDER

Remove/replace lamp holder.

ELECTRONIC BALLAST

Remove/replace electronic ballast.

BLOWER(S)

Remove/replace blower(s).

Electrical Tests and Service Procedures (Hot Version)

HEATING ELEMENT TEST

Test heating element resistance.

PTC 1 K SENSOR TEST

Test PTC 1K sensor.

CONTACTOR AND BLOWER TEST

Test contactor and blower.

ADJUSTING DANFOSS ERC 211 THERMOSTAT

Adjust Danfoss ERC 211 thermostat settings.

ERROR CODES ERC 211

List and explain ERC 211 error codes.

DANFOSS ERC 211 SETTINGS MC 75 + 100 HOT FULL SERVICE

ERC 211 parameter settings for hot full service.

ADJUSTING DANFOSS EKC 102 A THERMOSTAT

Adjust Danfoss EKC 102A thermostat.

CONTROL LOCATIONS FULL AND SELF SERVICE HOT

Identify controls on hot models.

Electrical Tests and Service Procedures (Cold Version)

PTC 1 K SENSOR TEST

Test PTC 1K sensor.

HEATING ELEMENT TEST EVAPORATION TRAY

Test evaporation tray heating element.

ADJUSTING DANFOSS ERC 213 THERMOSTAT

Adjust Danfoss ERC 213 thermostat settings.

ERROR CODES ERC 213

List and explain ERC 213 error codes.

DANFOSS ERC 213 SETTINGS MC 75 + 100 COLD FULL SERVICE

ERC 213 parameter settings for cold full service.

ADJUSTING DANFOSS EKC 102 C THERMOSTAT

Adjust Danfoss EKC 102C thermostat.

CONTROL LOCATIONS FULL AND SELF SERVE COLD

Identify controls on cold models.

Troubleshooting

Hot Models: Common Symptoms

Lists common symptoms and causes for hot units.

Hot Models: Component Analysis

Analyzes troubleshooting by component for hot units.

Cold Models: Common Symptoms

Lists common symptoms and causes for cold units.

Cold Models: Component Analysis

Analyzes troubleshooting by component for cold units.

Exploded Views and Part Lists

MODULAR COUNTER 75 HOT FULL SERVICE (CUBE, SQUARE)

Exploded view & parts for 75 Hot Full Service (Cube, Square).

MODULAR COUNTER 75 HOT SELF SERVICE (CUBE, SQUARE)

Exploded view & parts for 75 Hot Self Service (Cube, Square).

MODULAR COUNTER 75 COLD FULL SERVICE (CUBE, SQUARE)

Exploded view & parts for 75 Cold Full Service (Cube, Square).

MODULAR COUNTER 75 COLD SELF SERVICE (CUBE, SQUARE)

Exploded view & parts for 75 Cold Self Service (Cube, Square).

MODULAR COUNTER 100 HOT FULL SERVICE (CUBE, SQUARE)

Exploded view & parts for 100 Hot Full Service (Cube, Square).

MODULAR COUNTER 100 COLD FULL SERVICE (CUBE, SQUARE)

Exploded view & parts for 100 Cold Full Service (Cube, Square).

Electrical Diagrams

CIRCUIT DIAGRAM MC 75 -100 HOT FULL AND SELF SERVICE

Circuit diagram for hot full/self-service models.

CIRCUIT DIAGRAM MC 75 -100 HOT FULL AND SELF SERVICE TILL SERIAL NR. 100080879

Circuit diagram for hot models up to serial number 100080879.

CIRCUIT DIAGRAM MC 75 -100 COLD FULL AND SELF SERVICE

Circuit diagram for cold full/self-service models.

CIRCUIT DIAGRAM MC 75 -100 COLD FULL AND SELF SERVICE TILL SERIAL NR. 100080879

Circuit diagram for cold models up to serial number 100080879.

Fri-Jado MC 75 Specifications

General IconGeneral
BrandFri-Jado
ModelMC 75
CategoryDisplay Case
LanguageEnglish