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Trouble Shooting

WARNING

When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OFF.

Continued operation in an abnormal condition may result in troubles, electric shocks or fire.
Consult the service shop where you bought the air conditioner.

Do not attempt to repair or modify the air conditioner by yourself.

Incorrect work may result in electric shocks or fire.

Consult the service shop where you bought the air conditioner.

If one of the following symptoms takes place, call the service shop immediately.

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The outdoor fan rotates while the air 

conditioner is not in operation.

After operation is stopped:

The outdoor fan continues rotating for another 60 seconds for system protection.

While the air conditioner is not in operation:

When the outdoor temperature is very high, the out door fan starts rotating 

for system protection.

The operation stopped suddenly.

(OPERATION lamp is on)

For system protection, the air conditioner may stop operating on a sudden 

large voltage fluctuation.

It automatically resumes operation in about 3 minutes.

“ 

 ” is displayed on the remote 

controller, and the displayed contents flash 

for several seconds when an operation 

button

 

is

 

pressed.

When three short “beep” sounds are issued 

in the case of wireless remote controller.

The air conditioner is controlled by the central equipment.

Flashing of the displayed contents indicates that the remote controller is 

invalid for control.

COOL/HEAT cannot be changed over. 

When the display shows “

” 

(CHANGEOVER UNDER CONTROL), 

it shows that this is a slave remote 

controller.

When the cool/heat changeover 

remote control switch is installed 
and the display shows “

” 

(CHANGEOVER UNDER CONTROL).

When a long “beep” sound is issued in 

the case of wireless remote controller.

Refer to page 13.

This is because cool/heat changeover is controlled by the cool/heat 

changeover remote control switch. Ask your Daikin dealer where the 

remote control switch is installed.

The liquid crystal of the remote 

controller

 

shows

  “

 

immediately

 

after

 

the power supply is turned on.

This shows that the remote controller is in normal condition. 

This continuoues for one minute.

The compressor in the outdoor unit does 

not stop after a short HEATING operation.

This is to prevent oil and refrigerant from remaining in the compressor. 

The unit will stop after 5 to 10 minutes.

The inside of an outdoor unit is warm 

when the unit has stopped

This is because the crankcase heater is warming the compressor even 

while the outdoor unit is stopped so that the compressor can start smoothly.

When the air conditioner has not been used 

(the power has been off) for a long time.

For protecting the mechanism, supply the power for 6 hours at first, then 

operate the air conditioner.

Warm air exits the unit even though it is off.

You can feel hot air coming out of the unit.

Multiple units are operating on the same system, so if a unit in another 

room is operating, some refrigerant will flow through the stopped units, too.

Call the service shop immediately.

After a power failure

The air conditioner automatically resumes operation 

in about 3 minutes. You should just wait for a while.

Lightning

If lightning may strike the neighbouring area, stop oper-

ation and turn the breaker OFF for system protection.

The power cord is abnormally hot or damaged.

An abnormal sound is heard during operation.

The safety breaker, a fuse, or the earth leakage breaker 

cuts off the operation frequently. 

A switch or a button often fails to work properly.

There is a burning smell.

Water leaks from the indoor unit.

Turn the breaker OFF 
and call the service 
shop.

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Summary of Contents for RXYMQ3AV4A

Page 1: ...RXYMQ3AV4A RXYMQ4AV4A RXYMQ5AV4A RXYMQ6AVE RXYMQ8AY1 RXYMQ4AVE RXYMQ5AVE RXYMQ6AV4A RXYMQ3AVE OPERATION MANUAL System air conditioner RXYMQ9AY1...

Page 2: ......

Page 3: ...ing the manual file it away for future reference READ BEFORE OPERATION Safety precaution 1 Names of parts 4 Preparation Before Operation 7 Useful Information 7 OPERATION COOLING HEATING FAN Operation...

Page 4: ...anship may result in water leakage electric shocks or fire hazards Do not place objects including rods your fingers etc in the air inlet or outlet Injury may result due to contact with the air conditi...

Page 5: ...ditioner The use of any other power supply may cause heat generation fire or product failures Consult your dealer regarding cleaning the inside of the air conditioner Improper cleaning may cause break...

Page 6: ...ernal parts of the controller Do not remove the front panel Touching certain internal parts will cause electric shocks and damage to the unit Please consult your dealer about checking and adjustment o...

Page 7: ...uctions near the air outlet of the outdoor unit Obstructions may result in poor performance and increased operating noise If abnormal noise occur ask your dealer for advise Regarding wiring All wiring...

Page 8: ...26A 24 25 Remote Controller TEST C hr TEST NOT AVAILABLE OPTION L H hr 10 1 3 11 21 20 19 12 23 2 4 5 13 7 8 14 16 9 6 15 17 18 22 Fig 1 NOTE This manual describe only for BRC1C62 KRC19 26A For other...

Page 9: ...ton for SETTING TEMPERATURE of the thermostat FAN SPEED CONTROL button Press this button to select the fan speed LOW or HIGH of your choice PROGRAMMING TIME button Use this button for programming STAR...

Page 10: ...a long time Do not leave the door or window open The air will be released and the effect of cooling heating will be reduced Do not allow direct sunshine to enter the room during the cooling operation...

Page 11: ...Operation HEATING Operation FAN Operation 2 Press ON OFF button OPERATION lamp lights up and the system starts OPERATION FOR SYSTEMS WITH COOL HEAT CHANGEOVER REMOTE CONTROLLER Only for the heat pump...

Page 12: ...TING button is pressed then returned soon the air conditioner will start the operation automatically about 5 minutes later because the air conditioner is controlled so that excessive load is not appli...

Page 13: ...ON lamp lights up and system starts OPERATION FOR SYSTEMS WITH COOL HEAT CHANGEOVER REMOTE CONTROLLER Only for the heat pump 1 Select cooling operation mode with the cool heat changeover remote contro...

Page 14: ...o it may be different from the display The air flow direction can be adjusted in either of the following ways Automatic The air flow flap adjusts its position itself Fixed air flow direction The air f...

Page 15: ...set the time for stopping or starting the system When this button is pressed the time advances by 1 hour When this button is pressed the time goes backward by 1 hour 3 Press the TIMER ON OFF button T...

Page 16: ...e right to select the cooling heating operation mode master remote controller can select the cooling heating operation mode The displays of slave remote controllers show CHANGEOVER UNDER CONTROL and t...

Page 17: ...r in the sequence fan dry cooling heating The indication in other slave indoor unit is changed over while following up the indication in the master indoor unit PRECAUTIONS FOR GROUP CONTROL SYSTEM OR...

Page 18: ...s heard when the system stops after HEATING OPERATION Expansion and contraction of plastic parts caused by temperature change makes this noise A low Sah Choro choro sound is heard while an indoor unit...

Page 19: ...L When a long beep sound is issued in the case of wireless remote controller Refer to page 13 This is because cool heat changeover is controlled by the cool heat changeover remote control switch Ask y...

Page 20: ...power switch to off Stop operation Symptom The machine does not work at all The machine runs but stops soon The machine does not work properly y d e m e R e s u a C Blocked air inlet or air outlet of...

Page 21: ...room and contact your dealer After asking for repair of refrigerant leakage confirm to the service personnel that the leak ing positions are repaired securely then start the operation In certain opera...

Page 22: ...NOTES...

Page 23: ......

Page 24: ...3P344160 3G M14N096 HT http www daikin com global_ac...

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