Mitsubishi Electric MR-G50J-SS-NZ Скачать руководство пользователя страница 16

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*1 : The setting of ice making compartment will be displayed and blinks during or after ice making test operation.
*2 : This operation is called the recovery operation:

If the damper has not operated ever once during the compressor operation, make the damper operate when the compressor stops.

*3 : When the resistance is

∞

, the circuit is deemed open-circuitted.

When the resistance is 0

, the circuit is deemed short-circuitted.

*4 : Once

e01

is detected, other errors would be ignored and not displayed on the panel.

*5 : Characteristic value may change in order to improve the product.
*6 : The error codes

e50

e55

are not displayed even if those abnormalities occur at power input.

Therefore, be sure to perform ice making test operation in order to check if any abnormality indicated by these error codes occurs. (See page 14.)

*7 : If those errors still continue for 1minute after the restart,

e56

will be displayed again.

Display

Error code

Trouble

Detecting method

(*3)

Check point

Treatment

Trouble of ice
maker gear box

When the gear box operation
is not finished in 30 seconds.

1. Connector CN8K on control board,

Ice gear box 6-pin relay connector, 8-pin relay connec-
tor

2. Ice gear box frozen point

Replace

3. Check the trouble of the ice gear box with the

ice making test operation.

Replace

Control

100 minutes later, the gear box is
reactivated to be checked again.

(T0: Defrost thermistor tem-

perature at power input, T1:

Defrost thermistor tempera-

ture when 15 minutes have

passed from the power input)

•When the difference

between T0 and T1 is

[

T1. (*5)

When cooling operation returns to
normal condition, the display of
error code disappears.

Trouble of invert-
er circuit

•When there is any trouble in
the circuit which detects cur-
rent of compressor.

Trouble of bus-
bar voltage

•When the range of bus-bar

voltage is not approx. DC

260-390V.

Trouble of startup
, synchronization
or overcurrent
detection

•When there is no current at

compressor startup.

•When phase current exceeds

5.5A at compressor startup.

•When phase current exceeds

3.3A during compressor oper-

ation.

•When current of 5.3A or more

runs into the bus-bar of

control board.

Trouble of power
supply voltage

When bus-bar voltage (full
wave voltage) is DC 390V or
above in power input.

1. Different voltage of power supply outlet

2. Trouble of relay in the circuit on the control board

Refrigerator compartment room
light OFF
Heaters. OFF

Trouble of con-
trol board
(EEPROM

related trouble)

EEPROM (IC11M)
accumulates data necessary
for control.
•When the data are not input

accurately.

•When microcomputer cannot

read the data.

Refer to “Compressor does not operate” at page 21.

Trouble of elec-
tromagnetic
three-way valve

When defrost thermistor reads

-10

or above in five minutes

after the compressor’s

startup.(*5)

Connector CN9D on control board
5-pin connector in machine chamber

Check the operation of electro-
magnetic three-way valve and
then open the valve.

Check the compressor and the pipe.

1. Connector CN4D on control board,

Refrigerator fan motor 6-pin relay connector

2. Check refrigerator fan motor operation.

Replace

Trouble of refrig-
erator fan motor

•When motor doesn’t

rotate even though

power is on.

•When the waveform,

which indicates the rota-

tion times of motor, can-

not be detected.

•

3 minutes later, the refrigerator

fan motor is reactivated to be
checked.

•Until the fan motor gets to oper-

ate correctly, the buzzer sounds
every time the door is closed.

1. Connector CN4D on control board,

4-pin connector, 4-pin relay connector

2. Check machine chamber fan motor operation.

Replace

Trouble of
machine cham-
ber fan motor

•When motor doesn’t

rotate even though

power is on.

•When the waveform,

which indicates the rota-

tion times of motor, can-

not be detected.

•3 minutes later, the machine

chamber fan motor is reactivated
to be checked.

•Until the fan motor gets to oper-

ate correctly, the buzzer sounds
every time the door is closed.

(*6)

Self-check

LCD

(*6)

Trouble of inverter
software reset
function

•When the inverter driving

software malfunctions.

Defective wiring
continuity or
trouble of control
board

The errors

keep

occurring over one and a half

hour.

(the situation, which com-

pressor cannot be operated,

continues.)

Overcurrent detection error

occurred before the

compressor is activated.

Refer to “Compressor does not operate” at page.22.

•Error display starts after it is

regarded as

e56

•Error display continues until

defrosting starts or cooling oper

ation gets back to normal. (Error

display doesn’t disappear by

unplugging and plugging the

power cord.*7)

•Try to restart compressor every 3

minutes.

(*6)

Repair the
contact failure.

Clogging of
refrigerant
pipe or trouble
related to
compressor

Replace
the control
board.

The compressor is suspend-
ed and reactivated 10 min-
utes later.

When abnormality occurs in
power input, the compressor
is suspended for 10 minutes.
When abnormality occurs in
normal operation, the com-
pressor keeps operating.

Replace the
operation
P.C. board.

Trouble of out-
side air ther-
mistor

Compressor is activated at
“Speed-level 2.”

1. Connector CN2A on control board

Defrost heater plug and receptacle, 1-pin

relay connector

Thermal fuse 4-pin, 8-pin relay connector

2. Check the resistance of defrost heater.

3. Check the continuity of thermal fuse.

Replace

Trouble of
defrost heater
(*6)

When defrosting is not
finished in 2 hours.