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Troubleshooting
User Reference Guide
40
FTXP20~35M5V1B9
Daikin room air conditioners
4D520466-7C – 2020.03
8.1.7 Symptom: White mist comes out of a unit (Indoor unit)
▪
When humidity is high during cooling operation (in oily and dusty places). If the
interior of an indoor unit is extremely contaminated, the temperature
distribution inside a room becomes uneven. It is necessary to clean the interior
of the indoor unit. Ask your dealer for details on cleaning the unit. This operation
requires a qualified service person.
▪
When the air conditioner is changed over to heating operation after defrost
operation. Moisture generated by defrost becomes steam and exits.
8.1.8 Symptom: The units can give off odours
The unit can absorb the smell of rooms, furniture, cigarettes, etc., and then emit it
again.
8.1.9 Symptom: The outdoor fan rotates while the air conditioner is not in operation
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After operation has stopped.
The outdoor fan continues to rotate for another
30 seconds for system protection.
▪
While the air conditioner is not in operation.
When the outdoor temperature is
very high, the outdoor fan starts to rotate for system protection.
8.2 Solving problems based on error codes
If the unit runs into a problem, the user interface displays an error code. It is
important to understand the problem and to take measures before resetting an
error code. This should be done by a licensed installer or by your local dealer.
This chapter gives you an overview of all possible error codes and their descriptions
as they appear on the user interface.
For detailed troubleshooting of each error, see the service manual.
Fault diagnosis by user interface
The user interface can receive an error code from the indoor unit referring to the
fault. It is important to understand the problem and take measures before
resetting the error code. This should be done by a licensed installer or your local
dealer.
To see the error code on the user interface:
1
Hold
for about 5 seconds.
Result:
blinks in the temperature display section.
2
Press
repeatedly until a continuous beep is heard.
Result:
The code is now displayed on the display.
INFORMATION
▪
A short beep and 2 consecutive beeps indicate non-corresponding codes.
▪
To cancel the code display, hold the
cancel button for 5 seconds. The code
will also disappear from the display if the button is NOT pressed within 1 minute.