Technibel Softy Softy Plus User manual

PORTABLE AIR CONDITIONER (LOCAL)

SERVICE MANUAL

Read the instructions carefully before operating the appliance or carrying out maintenance work.

Observe all the safety instructions; failure to observe the instructions may lead to accidents and/or

damage. Store these instructions in a safe place for future reference.

V 03/17

1.Malfunction diagnosis

1.Input voltage must be in the range of of rating voltage if work voltage of air conditioner is outside of this range air conditioner will

possibly not run Enough power supply capacity must be provided

2.Make sure the good connection between power supply plug and power supply, otherwise air conditioner will not run normally.

10% , ,

normally. ( )

1-1 Items to be checked at first

3. The phenomenon listed in below table occurred, which are not caused by air conditioner failure

Phenomenon

Description

While the power supply pin plug into socket at first time and

sound"tick" is heard, but air conditioner does not run.

While power supply pin plug into socket ,the indicator

lamp of "water full" flickering continuously on display

panel and "tick"sounding continuously, pressing

"ON/OFF" but air conditioner does not run and fan runs only.

Timer is in timing status and air conditioner is in standby status; if cancel timing

operation, air conditioner will recover to normal status.

Under dehumidifying mode, air conditioner will control compressor work

status automatically according to indoor air temperature

under cooling heating or dehumidifying mode,

while air conditioner switches off and immediately

switches on, only fan runs but compressor does not run

While air conditioner switches off and switches on soon, and air conditioner provides

a three-minute delay protection function; three minutes later, compressor will

restart to run.

Which indicates air conditioner is energized, as long as press "ON/OFF"

on display panel or on remote controller, and the signal is received by

air conditioner, which means entering setting operation..

Water of tank is not put out.

Presetting LED lamp lights on but air conditioner does not run

under dehumidifying mode, compressor does not run

continuously

Under cooling mode, while setting temperature above

room temperature, compressor does not run

Setting temperature means a temperature point of ambient temperature decreases upto by way of

operation of air conditioner under cooling. While the setting temperature decreases

below room temperature, compressor will run.

1.Items to be checked

1 Whether input voltage is right or not

2 Whether the connection of AC power supply is right or not

3 Whether the output voltage of manostat isr ighto rn ot

2.Flow chart of malfunction diagnosis

7805(IC1)

1-2 Guide to malfunction diagnosis

1-2-1 No power supply (completely no work)-preliminary diagnosis

Check transformer whether is intact or not

Check DC voltage on PCB board

whether is intact or not

Check condition of power supply

line and condition end check fuse

Replace Ic2

Check PCB board

replace main PCB board

check connection status of compressor,

motor and fan motorpumping out

YES

Replace PCB

YES

Draw out power supply plug and about

five seconds later insert again

Whether buzzer sounds or not

Whether the indicator lamp LED and digital tube

light on or not

Whether is there signal transmittal indication

on remote controller or not

After press "ON/OFF" on remote controller,

whether air conditioner runs or not?

Normal

Refer to misfunction diagnosis

of remote controller

Whether the preliminary voltage applied

on transformer is normal or not

Whether the voltage of compressor, pumping out

motor and fan motor are normal or not

Whether Ic2 output voltage is normal or not

YES

YES NO

YES

1.Items to be checked

1 Whetherindo orfan motoris connected withcon nector a rightway

2 Whether the input voltage of AC power is right or not

3 Whether the operation capacitor of indoor fan motor

Is connected with connector a rightwayor not

2.Flow chart of malfunction diagnosis

X8 in

CN10 CN11 in

1-2-2 Indoor fan motor does not run

After draw out power supply plug and more five seconds,

insert plug again

Replace PCB

PCB failure

Whether input voltage of fan motor is satisfied or not

Whether the core output on controller is normal or not?

Micro-control core failure

Please refer to the description of flow of failure

diagnosis in last page

Whether luminous diode tube LED lights on or not

Fan capacitor failure

Fan motor failure

Replace indoor fan motor

Replace capacitor

YES

1.Flow chart of malfunction diagnosis

1-2-3 Remote control can not be used

Take out batteries and five seconds later install again

Whether the voltage of Q1 varies or not

Replace triode

Whether the voltage of LED varies or not

Transmittal tube failure

Receiver failure

Whether the voltage of remote controller core Ic1 varies or not

Core failure

Replace button

Liquid crystal failure

Replace batteries

Normal

Whether the LCD of remote controller displays normally or not

Whether battery voltage is less than 2.5 V or not (remote controller )

While press "ON/OFF" on remote controller

whether is music heard or not

Check subject to instruction section of "no

power supply diagnosis.

Whether LED display module lights on or not

YES

While press "ON/OFF" on remote controller, whether

transmittal indicator signal emerge or not

YES

1-3 PCB check

1-3-1 points for attention while replace parts

1.Make sure that human body is grounded as a safety way or not before execute reparation and parts replacement due to human body carrying electrostatic,

especially before contact some micro-computer or integrated circuit, confirm to discharge electrostatic completely (make sure whether wear an effective

grounding ring in the wrist or not)

2.While execute a live reparation of parts on work bench, make sure that a insulating cushion must be provided and no metallurgic fragments on cushion.

If any metallurgic fragments contact with parts, possibly, damage other section of parts.

3.Power supply must be cut off before replace components, if perform a live operation, possibly, results in electric shock, short and other damage.

4.During parts replacement or reparation , make sure that: conduct wire on circuit panel (whether there is jumper loop or not); diode location.

Conduct wire and member are damaged resulting from easy to bend and shock due to coarse treatment for circuit panel.

5.Clean the conduct wire and new member by sand paper and etc before welding, otherwise the welding material will be possibly adhered to conduct wire

and parts due to oxidation.

6.Avoid using electric iron with high-efficiency to weld for a long time while welding, otherwise the members with low heat resistance are easy to be damaged.

7.The quantity of heat of electric iron should be spreaded all over the object welded, otherwise welding will not be performed very well.

8.Welding material should be as little as possible while welding, too much welding material possibly causes circuit failure.

1-3-2 Process

Replace member subject to the flow as followed:

Check the member with failure

Dismantle the component with failure

Check capacity of new member

Maintenance finish

Replace failure component

1-3-3 Detailed process

Malfunction

Check point

Reason

Disconnection power supply and

check fuse on PCB

Damage or not

Voltage exceeding

Fan motor short

Connect with power supply

Check voltage

1.Whether is there normal AC voltage on XB or not?

2.The DC voltage on IC5

input DC12V output DC5V

Rectification circuit mistake

Drop-down transformer does not

work

Special protection mode

Check voltage

Circuit malfunction

1.Check the control load for various relays

Relay disconnect 0.5V

Relay connect 6V

Relay malfunction

一、 Error code display

When Air conditioner has problem, the display will show different error code related to

different problems.

Reason Display Solution

TA abnormal(broken

circuit or short circuit)

“E1”See the detail solution

TE abnormal(broken

circuit or short circuit)

“E3”See the detail solution

TW abnormal(broken

circuit or short circuit)

No error code No error report, stay the

same

Water full “P1”See the water full alarm

function

二、Error solution：

1. TA abnormal, indoor shows E1 keep lighting, air conditioner can run without any

stop except the heating mode, other protection still valid. If under auto mode to

choose the mode according to the environment temperature, please choose fan mode

to run. If under cooling mode, the machine continuous running, If under dehumidifier

mode, fan motor and compressor do not working, the up motor is set with low fan speed.

2. If under cooling or dehumidifier mode, TE abnormal, indoor will show “E3” keep lighting.

The normal anti-frozen protection function no more working. Cooling, dehumidifier mode, carry

out stopped for 5min after compressor continuous working more than 30min. If under heating

mode, indoor shows”E3” keep lighting, air conditioner will stop running.

3. TE and TA happen during the same time, TE error code’s special operation status will has

priority

Remark：

TA: Indoor environment temperature

TE: evaporator coil temperature

TS：Set up temperature

TW：condensor coil temperature；

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inside dashed frame.

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