Beko Multi Type Air Conditioner Manual de usuario

BEKO

Service Manual

Portable Air Conditioner

CONTENTS

Instruction…………………………….…………………………………….1

1.1 The repair of ordinary breakdown……………………………………...2

1.2 Operation step……………………………….………………………3

2.1 Electric control theory…………………………..……………….….5

2.2. Typical Trouble-shooting Analysis……….……………………….7

2.3 Electric Control disassembly…………….…………………….…..13

3.1 Cooling Theory…………...……………………………………….….15

3.2 Examine & Repair of Cooling Troubleshoot ……………………15

3.3 Circuit Diagram……………………………………………….……...17

3.4 Explosive view……………………………………………….……...17

Instruction

◆This manual is only available for the above models.

BKP-09C、BKP-12C

◆ Please do not use this manual for any other products, we will not be responsible for the

accident caused by the possible wrong action.

◆The above must be repaired by professional workers。

◆ Please make sure the power plug and the power is off before the repair.

Chapter1.The repair of ordinary breakdown

1.1 Analysis of breakdown

When the unit is not able to work, please do not worry and do not separate the unit at once. In order

to solve the problem, please try to handle it according to the below methods.

When there is any breakdown, please follow the above information, if it is not effective yet, please try to

solve it according particular methods.

Breakdown Analysis of the season Methods

The unit is not able to

work

1.power cut

2.power plug is not on

3.display“P2”

1.make the power supply

available

2.make the power plug on

3. remove it into bathroom, pull

out the water plug and drain the

water inside（follow the

operation methods）

Cooling effect is not

distinct

1.air filter is full of dirt

2.anyobjet blocks the wind

outlet

3.room space is too big and

not airtight

1.clean the air filter (follow the

operation methods）

2.remove the block

3.adjust the space and make the

room airtight.

slack

1.the unit is declining

2water outlet is blocked

1.adjust the unit balance

2.pull off the water plug and

remove the block

Abnormal noisy

1.thye unit is not stable

2.airfilter is blocked

1.put the unit stable

2clean the air filter

Under the heating mode, there

is no warm wind at once

1.ambient temperature is

lower than the one setted

2.befoe the warm wind is

available, there is cool wind

insisting 3 minutes

1.set the temperature higher than

the ambient

2.please wait 3 minutes

Peculiar smell

Long time no use, the unit will

absorb some smell from the

environment

The peculiar smell will disappear

after turning on the unit 3

minutes.

1.2 Operation step

Step1：⑴Pull off the water plug , see photo 1 with hands.

⑵ Seeper will flow though the drainpipe.

⑶ When all the seeper is out, cover the plug.

Step 2.：

⑴Take out the air filter casing , see photo 2.

⑵Take out the air filter form the casing, see photo 3.

⑶Clean the filter, see photo 4.

⑷Put back the filter when it is dry

Step 3.

⑴open the batter cover of the remote control, see photo 5.

⑵make sure the battery is right.。

Chapter 2.

Repair when the unit is not able to on

2.1 Electric control theory

As we learnt from the picture, there are strong and weak electricity in the whole circuit

and the cut-off point is transformer.

When the strong electricity part is powered, two 50A relays RY6 and RY2 will

respectively control PTC heater and compressor. The current goes through fuse and then,

up-motor, down-motor, swing motor and water-spray motor. Up-motor has three speeds, and

respectively controlled by three 5A relays, which are RY1, RY3, RY4. They indicate

respectively high, middle and low speed. Only one of the three relays could be connected

at one time. When RY1 is connected, the up-fan speed is high; When RY3 is connected, the

up-fan speed is medium; When RY4 is connected, the up-fan speed is low. The starting

capacitor is 2uf/450V.The down-motor has two speeds and is controlled by two 5A relays,

RY8 and RY9 respectively. When RY8 connected, fan speed is high; when RY9 connected, fan

speed is low. The starting capacitor is 3 uf/450v.The swing motor is a step motor and

controlled by relay RY7.The water-spray motor is a electrode-covered motor and controlled

by RY5 relay.

Weak electricity part could be divided into two parts. One part is power supply,

another part is micro-control. The electricity becomes 13.5V alternate current through

transformer, and then is bridge-rectified by four IN4001 diodes. After rectification,

the current becomes 18.5V D.C through C2 capacitor, and goes through 7812 regulator and

becomes 12V stable current. The current then is divided into two routes. One route is

from RY1 to RY2…RY9 etc, which are nine relays and driver ICULN2003; another route becomes

stable 5V after 7812 regulator, and becomes single-chip, to supply electricity to LED

or LCD, or boozer etc.

Buttons, LED or LCD is a window of man-machine inter-action. The work status of machine

can be changed through buttons, LED or LCD indicates real-time work status of machine.

If remote control mode, the receiver of RC receive or send order or signal, and then pass

them to the single-chip. The surface temperature of evaporator is transferred to

single-chip through an evaporator sensor. Water level sensor transmit water level

information to the single-chip. All these signals pass to the single-chip, and then

analyzed and processed and the single-chip send all kinds of orders and control the on-off

status of all relays through driver ICULN2003.The whole machine works well under the

coordination of the single-chip.

2.2. Typical Trouble-shooting Analysis

Abnormal display

Display failure code

E1：Failure of the evaporator temperature

sensor：connection between the sensor plug and the

electric control panel is not very good, or there is

something wrong with sensor. E2：Failure of room

temperature sensor：connection between the sensor plug

and the electric control panel is not very good, or

there is something wrong with sensor.

E3：cooling system is abnormal：the compressor does not

start，or there is something wrong with down fan

motor.(see part 2 of chapter 3)

E4：Anti-frozen protection，it is normal.

P2:Water is full.（see part 1 of chapter 1).

the display is not complete, or the indicator is not flash ：

1.possiblly because the connection between the electric control panel and the

display board is not very good. just connect it again.

2.It also might because the problem of the display board, please change the display

board.

YES

NO connect the teminator N,L and the control panel piece

well.

check if the connection between input tip of the transformer

and the electric control panel is good or not.

NO connect it again

Check if the wire between the display board and the

electric control panel connected well.

connect it again

check if the fuse is blown.

NO change the fuse.

YES

check by a AVOmeter and see if the resistance between plug tip N and the

COM1 terminator is lower than 0.1Ω, or check if the resistance between

the plug tip L and the COM piece of COMP relay RY2 is lower than 0.01Ω.

YES

The machine is powered on, but neither it run,

nor it display.

check if the terminator N,L of the power cord and

the control panel piece connected well.

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