Mabe ESTILO Bedienungsanleitung

”ESTILO” REFRIGERATORS FROM MABE

Pub # 07-MAN-RE-02

Index

IMPORTANT SAFETY NOTICE 3

DEFROST CIRCUIT 4, 5, 6

ELECTRONIC BOARD 7, 8, 9, 10, 11

COMPRESSOR OPERATION 12

DIRECT TEST FOR THE ELECTRONIC BOARD 13

THERMISTOR VALUES 14

HOW TO REMOVE THE CONDENSER FAN 15, 16, 17

HOW TO REMOVE THE CONTROL ON THE DOOR 18

SPECIAL FEATURES 19, 20

DIAGRAM 21

IMPORTANT SAFETY NOTICE

Warning: This information is intended for use by individuals possessing

adequate backgrounds of electrical, electronic and mechanical experience.

Any attempt to repair a major appliance may result in personal injury and

property damage. The manufacturer or seller cannot be responsible for the

interpretation of this information, nor can it assume any liability in connection

with its use.

CAUTION

To avoid personal injury while servicing this unit, disconnect power before

servicing. If grounding wires, screws, straps, clips, nuts, or washers used to

complete a path to ground are removed for service, they must be returned to

their original position and properly fastened.

mabe CONFIDENTIAL AND PROPRIETARY INFORMATION-NOT FOR PUBLIC DISCLOSURE. FEBRUARY 2007

DEFROST CIRCUIT

The defrost circuit consists of :

control board, defrost sensor, defrost thermostat, fuses, and defrost heater.

FUSE HARNESS

DEFROST HEATER WITH

METALLIC SHIELD

When the board processor has accumulated an

amount of compressor running time and the

sensor records a high resistance value above

8.5KΩ, the board sends a 12 VDC signal to the

relay and the relay energizes the heater.

CONTROL BOARD

mabe CONFIDENTIAL AND PROPRIETARY INFORMATION-NOT FOR PUBLIC DISCLOSURE. FEBRUARY 2007

DEFROST CIRCUIT (cont.)

•If the heater is energized for 20 minutes in the defrost cycle, the next

refrigeration cycle is increased by 2 hours; if heater is energized for 30

minutes, the refrigeration cycle is maintained as is; if heater is energized

for 40 minutes, the next refrigeration cycle is decreased by 2 hours. So,

the defrost cycles range between a minimum of 1 defrost per 8 hours to

a maximum of 1 defrost cycle every 12 hours.

•When the refrigerator is connected for the first time, the electronic

board will send a signal to enable the defrost cycle after 8 hours of

compressor run time.

•If the refrigerator is disconnected or lost of power the board memory is lost

and the next defrost cycle will be initiated after the first compressor off time.

mabe CONFIDENTIAL AND PROPRIETARY INFORMATION-NOT FOR PUBLIC DISCLOSURE. FEBRUARY 2007

DEFROST CIRCUIT (cont.)

DEFROST SENSOR

The sensor's function is to detect the amount of frost that has accumulated

on the evaporator and how long the element is on.

DEFROST THERMOSTAT

acts as a safety device to avoid the temperature reaching more than 22

°C (71.6 ºF).

BIMETALLIC SAFETY THERMOSTAT

mabe CONFIDENTIAL AND PROPRIETARY INFORMATION-NOT FOR PUBLIC DISCLOSURE. FEBRUARY 2007

ELECTRONIC BOARDS

THERE ARE 2 DIFFERENT TYPES OF ELECTRONIC BOARDS:

•A STANDARD & DELUXE (“X”, “Y”) MODELS, with BASIC ELECTRONICS

•A SUPERDELUXE (Z) MODELS, with EXTERNAL DISPLAY

These electronic boards are not interchangeable from one model to the other.

mabe CONFIDENTIAL AND PROPRIETARY INFORMATION-NOT FOR PUBLIC DISCLOSURE. FEBRUARY 2007

ELECTRONIC BOARD (cont.)

How to test defrost operation

1. Disconnect the refrigerator.

2. Disassemble the control board.

3. Disconnect freezer sensor harness on “CON1 Defrost”.

4. Reconnect the refrigerator.

5. Compressor start after a minimum of 4 seconds.

6. Install a jumper wire between P_P and GND pins.

7. Compressor will turn off in approx. 5 seconds and 5 seconds later the

defrost heater comes on. Clip Amprobe around the blue wire on CON4 (should

read 2.6 to 2.7 amps).

(Once heater is on, jumper wire may be removed, heater will stay on).

mabe CONFIDENTIAL AND PROPRIETARY INFORMATION-NOT FOR PUBLIC DISCLOSURE. FEBRUARY 2007

ELECTRONIC BOARD (cont.)

How to test defrost operation (cont.)

8. To turn defrost heater off, install a jumper wire between the two terminal of

CON1 (defrost sensor connector plug).

9. The heater will turn off within 10 seconds.

10. Disconnect refrigerator and remove jumper wire installed in step #8.

11. Reconnect refrigerator, it will now resume normal operation.

mabe CONFIDENTIAL AND PROPRIETARY INFORMATION-NOT FOR PUBLIC DISCLOSURE. FEBRUARY 2007

ELECTRONIC BOARD (cont.)

BASIC ELECTRONIC BOARD VERSION (“X”& “Y” Models, with Knob)

Basic Electronic Main Board

for Sedna 17’Models.

3.- OPERATION CHECK. DEFROST CYCLE OPERATION.

mabe CONFIDENTIAL AND PROPRIETARY INFORMATION-NOT FOR PUBLIC DISCLOSURE. FEBRUARY 2007

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