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14

7.3  Remote controller troubleshooting

WARNING

Certain troubleshooting steps that a professional technician may perform when investigating an error are described in 

this owner's manual for reference only. Do not attempt to undertake these steps yourself – arrange for a professional 

technician to investigate the problem.

If any of the following errors occur, power the unit off and contact a professional technician immediately. Do not attempt 

troubleshooting yourself:

- A safety device such as a fuse or circuit breaker frequently blows/trips.

- An object or water enters the unit.

- Water is leaking from the unit.

Table 7-2

Symptom

Possible causes

Troubleshooting steps

The fan speed cannot 

be adjusted

- Check whether the MODE 

indicated on the display is "AUTO".

- In automatic mode, the air conditioner 

will automatically change the fan’s 

speed.

- Check whether the MODE 

indicated on the display is "DRY".

- When dry mode is selected, the air 

conditioner automatically adjusts the fan 

speed. (The fan speed can be selected 

during "COOL", "FAN ONLY", and 

"HEAT".)

The remote controller signal is 

not transmitted even when the 

ON/OFF button is pushed

- A power cut has occurred (the 

power to the premises has been 

cut-off).

- The remote controller's batteries 

are dead.

- Wait for the power to come back on.

- Replace the batteries.

The indication on the display 

disappears after a certain time

- Check whether the timer operation 

has come to an end when TIMER 

OFF is indicated on the display.

- The air conditioner operation will stop 

up to the set time. 

The TIMER ON indicator goes 

off after a certain time

- Check whether the timer operation 

has come to an end when TIMER 

ON is indicated on the display.

- Up to the set time, the air conditioner 

will automatically start and the 

appropriate indicator will go off.  

No receiving sound from the 

indoor unit when the ON/OFF 

button is pressed

- Check whether the signal 

transmitter of the remote controller 

is properly directed to the infrared 

signal receiver of the indoor 

unit when the ON/OFF button is 

pressed.

- Directly transmit the signal transmitter 

of the remote controller to the infrared 

signal receiver of the indoor unit, and 

then press the ON/OFF button twice.

Содержание KAYF-22 DN4.0

Страница 1: ...Thank you for purchasing this air conditioning unit Read this manual carefully before using the unit and retain it for future reference OWNER S MANUAL VRF DC Indoor Units ...

Страница 2: ...4 0 KPDF 45 DN4 0 KPDF 56 DN4 0 KPDF 71 DN4 0 KPDF 80 DN4 0 KPDF 90 DN4 0 KPDF 112 DN4 0 KPDF 140 DN4 0 KPDHF 71 DN4 0 KPDHF 90 DN4 0 KPDHF 112 DN4 0 KPDHF 140 DN4 0 KPDHF 160 DN4 0 KPDHF 200 DN4 0 KPDHF 250 DN4 0 KPDHF 280 DN4 0 KPCF 56 DN4 0 KPCF 90 DN4 0 KPCF 140 DN4 0 KAYF 22 DN4 0 KAYF 28 DN4 0 KAYF 36 DN4 0 KAYF 45 DN4 0 KAYF 56 DN4 0 KAYF 80 DN4 0 KSDF 28 DN4 0 KSDF 36 DN4 0 KSDF 45 DN4 0 K...

Страница 3: ...ws staples and other metal packaging components can be sharp and should be disposed of carefully to avoid injury Do not attempt to inspect or repair this unit yourself This unit should only be serviced and maintained by a professional air conditioning service engineer Incorrect servicing or maintenance can cause electric shocks fire or water leaks This unit should only be re positioned or re insta...

Страница 4: ...e exposure to corrosive or harmful gases such as acidic or alkaline gases may occur To avoid excessive noise or vibration the unit should be installed in a position that can bear the unit s weight and prevent excessive noise and vibration when the unit is running If excessive noise or vibration is experienced when the unit is running contact your supplier or service engineer Ensure that the drain ...

Страница 5: ...itu adjustment to three direction or two direction please contact the local dealer Grounding Screw in the control box Horizontal Air Outlet Louver Air Intake Air Filter inside Horizontal Air Outlet Louver Air Intake Air Filter inside Air Intake Air Filter Grille Bolt lock Air Outlet Louver Display Panel Lock buckle for closing the Air Grille Air Intake Air Filter Horizontal Air Outlet Louver Air I...

Страница 6: ...ake Air Outlet Louver F4 front air intake Version I Vertical unit with casing Front air intake and top air outlet It can be installed on the floor or hung on the wall Drain pipe Heat Exchanger Electric Control Box Air Intake Water Plug for maintenance Air Intake Air Filter inside Air Outlet Air Intake Air Outlet Louver Air Intake Air Outlet Electric Control Box Horzontal Air Outlet Louver Air Outl...

Страница 7: ...ich the unit runs stably are given in Table 3 1 Temperature Mode Indoor temperature Cooling mode 17 C 32 C If the indoor humidity is above 80 condensation may form on the surface of the unit Heating mode If it exists 27 C NOTE The unit performs stably in the temperature range given in Table 3 1 If the indoor temperature is outside the unit s normal operating range it may stop running and display a...

Страница 8: ...Maintain a proper air distribution Close doors and windows Avoid direct exposure to outlet air as it may be too cool or hot This applies especially to children the elderly and people with disabilities Air outlet louvers should be used to adjust the direction of outlet airflow as doing so might ensure more efficient operation Since warmer air rises and cooler air falls the distribution of warmed co...

Страница 9: ...just the air direction up and down CAUTION Water may drip from the unit if the direction of outlet air is adjusted downward during cooling operation The uneven distribution of indoor temperature will be aggravated if the direction of outlet air is horizontal during heating operation Do not move the horizontal louver with your hand as doing so may cause a malfunction The position of the horizontal ...

Страница 10: ... mode cooling mode heating mode Situation When the room is cool or after running the air conditioner for one hour At the start of the operation or at other times when the room is not fully cooled At times other than those below Normal time At the start or when air temperature is low Blowing pattern Air is blown via the upper air outlet to equalize the room temperature so the air doesn t directly b...

Страница 11: ...g the finish Do not use benzene thinner polishing powder or similar solvents for cleaning These may cause the plastic surface to crack or warp The control box cables originally connected to the electrical terminals on the main body must be removed as indicated above 5 MAINTENANCE Method for cleaning the air filter The air filter can prevent the dust or other particles from entering the unit If the...

Страница 12: ...tte Type For Console Type Air filter Special function filter Fig 5 8 The filter is housed in the lower part of the unit in Version II and III to take in air from below or from rear To remove the filter in versions II and III perform the following steps It is housed in the front panel in Version I to take in air from the front To remove the filter in Version I do as follows For Floor Standing type ...

Страница 13: ...et grille by reversing steps 1 and 2 and connect the control box cables to the corresponding terminals in the main body 2 Dismantle the air filter 3 Clean the air filter Fig 5 14 Fig 5 15 Fig 5 16 Do not dry out the air filter under direct sunshine or with fire For one way cassette type the air filter should be installed before the unit body CAUTION Maintenance before stopping using the unit for a...

Страница 14: ...is occurs when the system finishes periodic defrosting Moisture that may accumulate on the unit s heat exchanger coil during defrosting becomes mist and is emitted from the unit 6 SYMPTOMSTHATARENOTFAULTS Symptom 1 The unit will not run Symptom 2 The unit emits white mist A continuous sound other than that made by the unit s fan is heard when the unit is running in cooling mode This is caused by t...

Страница 15: ...n to check the following Too much or too little refrigerant No gas in the refrigerant circuit The outdoor unit compressors have malfunctioned The power supply voltage is too high or too low There is a blockage in the piping system Low cooling effect Doors or windows are open Sunlight is shining directly onto the unit The room contains many heat sources such as computers or refrigerators The unit s...

Страница 16: ... speed can be selected during COOL FAN ONLY and HEAT The remote controller signal is not transmitted even when the ON OFF button is pushed A power cut has occurred the power to the premises has been cut off The remote controller s batteries are dead Wait for the power to come back on Replace the batteries The indication on the display disappears after a certain time Check whether the timer operati...

Страница 17: ...maged main PCB 3 Indoor ambient temperature sensor error OPERATION LED flashes rapidly E2 Temperature sensor not connected properly or has malfunctioned Damaged main PCB 4 Indoor heat exchanger mid point temperature sensor error OPERATION LED flashes rapidly E3 5 Indoor heat exchanger outlet temperature sensor error OPERATION LED flashes rapidly E4 6 Fan error TIMER LED flashes rapidly E6 Fan stuc...

Страница 18: ...16126000003108 V1 0 ...

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