Rev.5 Service Manual MCC Hot USA 20220500
Page 59
10.0
Trouble Shooting
10.0.0 Problems which can be checked by user
Each user can check the following points as mentioned in the user manual:
•
Is the power supply OK?
•
Check the fuses and the earth leakage switch in the meter cup board.
•
Are all the switches in the correct “on” position?
Item
Malfunction
Possible action
Unit
Unit does not work
•
Check the power supply.
•
Are all switches in the correct position.
Unit
Display shows error code
•
Contact your supplier or service agency.
Lamp
Does not light up
•
Switch ON.
Mains cord
Damaged
•
Replace.
Window
Damaged
•
Replace.
10.0.1 Cold units
WARNING
All service operations on the refrigeration system and gas charging must be performed by
fully certified and qualified persons, in a well ventilated environment.
10.0.2 Replace the mains cord
WARNING
Hazardous electrical voltage.
If the mains cord is damaged, it must be replaced by a fully certified and qualified person,
in order to avoid hazards.
10.0.3
Error codes and solutions
See page 69
10.0.4
Heating element testing (Self Serve units)
Resistance
1.
Remove wiring (two) from the element.
2.
Connect the probe of the multimeter to each of the wires.
3.
Test the probe with a Ohm tester, values see below.
Current
1.
Place ampere pliers around red wire of Element.
2.
In normal working condition, test current see below. (230V version)
MCC60
MCC90
MCC120
Shelf
Power
Current Resistance
Power
Current Resistance
Power
Current Resistance
Watt
Ampere
Ohm
Watt
Ampere
Ohm
Watt
Ampere
Ohm
Top
465
2,02
113,7
700
3,04
75,6
935
4,07
56,6
Middle
570
2,48
92,8
850
3,70
62,2
1130
4,91
46,8
Bottom
750
3,26
70,5
1125
4,89
47,0
1500
6,52
35,3
