Mitsubishi Heavy Industries SKM20ZSP-S User Manual Download

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Self diagnosis function

■

We are constantly trying to do better service to our customers by installing such judges that show abnormality of each function as follows:

Outdoor temperature sensor error

• Broken outdoor sensor wire, poor connector connection

Description of trouble

Room temperature sensor error

Cause

• Broken heat exchanger sensor wire, poor connector

connection

Active filter voltage error

Heat exchanger sensor 1 error

• Broken room temperature sensor wire, poor connector

connection

• Defective power source

• Broken heat exchanger fluid pipe sensor wire, poor

connector connection

Discharge pipe sensor error

• Broken discharge pipe sensor wire, poor connector

connection.

Rotor lock

• Defective compressor
• Open phase on compressor

• Defective outdoor unit boards

• Gas shortage, defective discharge pipe sensor, closed

service valve

• Broken power transistor, broken compressor wire
• Broken discharge pipe sensor wire, poor connector connection
• Compressor blockage

• Compressor locking, open phase on compressor output,

shortcircuit on power transistor, closed service valve

• Defective power source, Broken signal wire, defective in/

outdoor unit boards

Power transistor error

• Broken power transistor

Current cut

Trouble of outdoor unit

Over current

• Overload operation, overcharge

Over heat of compressor

Error of signal transmission

Outdoor fan motor error

• Defective fan motor, poor connector connection

TIMER light ON

RUN light keeps flashing

RUN light 2-time flash

RUN light ON

2-time flash

5-time flash

1-time flash

RUN light

2-time flash

1-time flash

TIMER light

4-time flash

2-time flash

4-time flash

1-time flash

2-time flash

3-time flash

5-time flash

6-time flash

• Defective fan motor, poor connector connection

Indoor fan motor error

6-time flash

7-time flash

Cooling high pressure protection

• Gas over charge, short circuit of outdoor unit

Keep flashing

Outdoor heat exchanger fluid
pipe sensor error

Refrigerant is insufficient
Closed service valve
Heat exchanger sensor 1 error

• Refrigerant is insufficient, leaking
• Closed serice valve

• Broken heat exchanger sensor 1 wire, poor connector

connection

7-time flash

5-time flash

Suction pipe sensor error

Broken suction pipe sensor wire, poor connector connection

•

Heat exchanger sensor 3 error

• Broken heat exchanger sensor 3 wire, poor connector

connection

3-time flash

RLC012A012_EN_001-022.indd 22

2016/07/14 18:19:28

Summary of Contents for SKM20ZSP-S

Page 1: ...TSCH ITALIANO ESPAN OL NEDERLANDS PORTUGUÊS РУССКИЙ FRANÇAIS This air conditioner complies with EMC Directive 2014 30 EU LV Directive 2014 35 EU Ce climatiseur est conforme à la directive CEM 2014 30 UE et à la directive basse tension 2014 35 UE Dieses Klimagerät erfüllt die Richtlinien zur elektromagnetischen Verträglichkeit 2014 30 EU und die Niederspannungsrichtlinie 2014 35 EU Questo condizion...

Page 2: ...of life should be disposed of separately from general household waste If a chemical symbol is printed beneath the symbol shown above this chemical symbol means that the batteries contain a heavy metal at a certain concentration This will be indicated as follows Hg mercury 0 0005 Cd cadmium 0 002 Pb lead 0 004 Please dispose of batteries correctly at your local community waste collection or the rec...

Page 3: ...ctions with great care The system must be installed by your dealer or a qualified professional It is not advisable to install the system by yourself as faulty handling may cause leak age of water electric shock or fire Do not install it where flammable gas may leak Gas leaks may cause fire Depending on the place of installa tion an earth leakage breaker may be necessary If you do not install an ea...

Page 4: ...ance directly to the air stream of the air conditioner The appliance may then work inade quately Do not wash the air conditioner with water This could cause an electric shock Children shall not play with the appli ance Do not expose yourself to the cooling air for a long period This could affect your physical condition and cause health problems Safety precautions The system should only be used for...

Page 5: ...n a stepladder or other stable object when removing the inlet panel and filters Failure to observe this may result in injury through insecure objects toppling over When you clean the system stop the unit and turn off the power source Never open the panel while the internal fan is rotating Do not place objects near the out door unit or allow leaves to gather around the unit If there are objects or ...

Page 6: ... system in abnor mal circumstances may result in mal functioning electric shock fire etc If the air conditioner fails to cool or warm the room it may have a refrig erant leakage Contact your dealer If refrigerant needs to be added check with your dealer for proper instructions If the refrigerant comes in contact with the bare skin it may cause cold injury If the refrigerant gas is inhaled exces si...

Page 7: ... unit fan Heat exchanger Name of each part and its function Air filter Remove dust or dirt from the inlet air Page 18 Air outlet Air blows out of here Heat exchanger Front panel Room temperature sensor Refrigerant piping connection and electric wire Drain hose Drains water from the indoor unit Unit display section Page 7 RLC012A012_EN_001 022 indd 6 RLC012A012_EN_001 022 indd 6 2016 07 14 18 19 20...

Page 8: ...emote control holder Battery R03 AAA Micro x2 Wood screw Quantity 2 for remote control holder mounting This button can be used for turning on off the unit when remote control is not available Page 8 Remote control signal receiver Unit ON OFF button RUN HOT KEEP light green Illuminates during operation Blinks when airflow stops due to the HOT KEEP CLEAN operation and operation mode invalid ON OFF 1...

Page 9: ...ies with new ones and retry the operation Warning note for remote control handling Operation failure with the remote control If the operation fails operate the unit with temporary operation function Contact your dealer to have the remote control checked Below Strictly prohibited Do not drop the remote control Handle with care Do not go near high temperature places such as an electric carpet or sto...

Page 10: ...This button cancels the ON timer OFF timer and SLEEP operation CANCEL button Page 10 11 Transmission procedure When each button on the remote control is pressed with the remote control pointing towards the air conditioner unit a signal is transmitted When the air conditioner receives the signal correctly it will beep NOTE 2 Current time setting When inserting the batteries the current time is auto...

Page 11: ...button is pressed the indicator does not change When the unit is not in AUTO mode Press MODE button Move the mark to the Auto position Point the remote control toward the air conditioner and Press the ON OFF button 1 2 When it is a little cold Press the button When it is a little hot Press the button Operation capacity by your choice FAN SPEED Set automatically by microcomputer AUTO Powerful opera...

Page 12: ...nit from working Characteristics of HEAT mode operation Mechanism and capacity of HEAT mode operation Mechanism The unit draws heat from the cold outside air transfers it to indoors and heats the room As a characteristic of heat pump system the heating capacity reduces when the outside air temperature gets colder It may take some time to supply hot air after turning on the air conditioner If the o...

Page 13: ...te control Every time you press this button the mode changes as follows Change on AIRFLOW UP DOWN mode When operation starts the flap direction is fixed at the horizontal position in order to avoid cold draft and return to the set the position that was set after the warm air supply is starting The flap direction will be controlled to the horizontal position when the room temperature reaches the se...

Page 14: ... 1 With the air conditioner running start from Step 2 Example You prefer it to stop 22 30 Press the ON OFF button Press the OFF TIMER button OFF TIMER display is blinking Press the or button Every time the button is pressed the display is switched in the order of 0 00 0 10 0 20 Units of ten minutes 1 00 1 10 Every time the button is pressed the display is switched in the order of 0 00 23 50 23 40 ...

Page 15: ...60 minutes before the ON TIMER s set time The timer light is turned off when ON TIMER set time comes Changing of set time Set a new time by using the SLEEP or ON TIMER button How to cancel Press the CANCEL button to turn off the timer display Press the or button Every time the button is pressed the display is switched in the order of 0 00 0 10 0 20 Units of ten minutes 1 00 1 10 Every time the but...

Page 16: ...nding on the temperature at that time the operation starts 5 to 60 minutes before the timer is at ON The function is available for both COOL and HEAT operation mode including AUTO It does not work for DRY mode SLEEP TIMER In COOL operation Stop Operation starts Check the room temp 60 mins before Set time When SLEEP TIMER is selected the set temperature is automatically adjusted after a while ensur...

Page 17: ... TIMER operation during ECONOMY operation 3 When the operation is retrieved from CLEAN operation When the following operations are set ECONOMY operation will be canceled 1 When the HI POWER ECONO button is pressed again 2 When the operation mode is changed from DRY to FAN Not operable while the air conditioner is OFF Concerning HIGH POWER operation Pressing the HI POWER ECONO button intensifies th...

Page 18: ... then automatically resumes operations after the power has been restored The following settings will be canceled 1 Timer settings 2 HIGH POWER operations Auto restart function is set at on when the air conditioner is shipped from the factory Consult with your dealer if this function needs to be switched off When power failure occurs the timer setting is canceled Once power is resumed set the timer...

Page 19: ... s ditch to the rail of the front panel and push it in the back Remove dirt from the air filter using a vacuum cleaner If the filter is very dirty clean it with warm water approx 30 C and dry it thoroughly 2 3 Reinstall the air filter Cleaning the unit Wipe the unit with a soft dry cloth or use a vacuum cleaner If the unit is very dirty wipe it with a cloth soaked in warm water Rail both side Ditc...

Page 20: ... units do not cause any inconvenience to your neighbours Do not leave any obstacles near the outlet and inlet of the outdoor unit This may cause malfunctioning and increased operating noise If you hear an irregular noise during operation contact your dealer Inspection and maintenance Depending on operating environment the inside of the air conditioner may become dirty after a few year operations T...

Page 21: ...dows open Are there too many people in the room Is there a heat source in the room Is the air filter clean Not clogged Has the power switch been turned off Have you set the thermostat at a suitable temperature Is there any direct sunlight entering the room You hear a slight gurgling sound This is caused by refrigerating liquid moving within the unit You hear a slight cracking sound This is caused ...

Page 22: ... operation When you want to give priority to the air conditioner that was started later either stop the air conditioner that has priority or cause the operation type of the unit operated first to match that of the unit operated second When other indoor units are operating in different modes the RUN light illuminates Automatic Operation When the remote control operation switch is in the Auto mode t...

Page 23: ...ire defective in outdoor unit boards Power transistor error Broken power transistor Current cut Trouble of outdoor unit Over current Overload operation overcharge Over heat of compressor Error of signal transmission Outdoor fan motor error Defective fan motor poor connector connection TIMER light ON RUN light keeps flashing RUN light 2 time flash RUN light ON 2 time flash 5 time flash 1 time flash...

Page 24: ...TSCH ITALIANO ESPAN OL NEDERLANDS PORTUGUÊS РУССКИЙ FRANÇAIS This air conditioner complies with EMC Directive 2014 30 EU LV Directive 2014 35 EU Ce climatiseur est conforme à la directive CEM 2014 30 UE et à la directive basse tension 2014 35 UE Dieses Klimagerät erfüllt die Richtlinien zur elektromagnetischen Verträglichkeit 2014 30 EU und die Niederspannungsrichtlinie 2014 35 EU Questo condizion...

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