Trouble Shooting - Daikin RXY5MY1 Operation Manual

8-9 THE UNITS CAN GIVE OFF ODOURS
• The unit can absorb the smell of rooms, furni-
ture, cigarettes, etc., and then emit it again.
8-10 THE OUTDOOR UNIT FAN DOES NOT
SPIN
• During operation.
The speed of the fan is controlled in order to opti-
mize product operation.
8-11 THE DISPLAY SHOWS
• This is the case immediately after the main
power supply switch is turned on and means
that the remote controller is in normal condi-
tion. This continues for one minute.
8-12 THE COMPRESSOR IN THE OUT-
DOOR 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.
8-13 THE INSIDE OF AN OUTDOOR UNIT IS
WARM EVEN WHEN THE UNIT HAS
STOPPED
• This is because the crankcase heater is warm-
ing the compressor so that the compressor
can start smoothly.

9. TROUBLE SHOOTING

If one of the following malfunctions occur, take
the measures shown below and contact your
Daikin dealer.
The system must be repaired by a qualified ser-
vice person.
• If a safety device such as a fuse, a breaker or an
earth leakage breaker frequently actuates, or the
ON/OFF switch does not properly work;
Measure: Turn off the main power switch.
• If water leaks from unit;
Measure: Stop the operation.
• If the display "
TEST
operation lamp flash and the malfunction code
appears; (Refer to figure 12)
1. Inspection display
2. Indoor unit number in which a malfunction
occurs
3. Operation lamp
4. Malfunction code
Measure: Notify your Daikin dealer and report the
malfunction code.
9
" "
", the unit number and the
If the system does not properly operate except
for the above mentioned cases and none of the
above mentioned malfunctions is evident, inves-
tigate the system according to the following pro-
cedures.
1. If the system does not operate at all;
• Check if there is no power failure.
Wait until power is restored. If power failure
occurs during operation, the system automati-
cally restarts immediately after the power supply
is recovered.
• Check if no fuse has blown or breaker has
worked. Change the fuse or reset the breaker if
necessary.
2. If the system goes into fan only operation, but as
soon as it goes into heating or cooling operation,
the system stops;
• Check if air inlet or outlet of outdoor or indoor unit
is not blocked by obstacles.
Remove any obstacle and make it well-ventilated.
• Check if the remote controller display shows
" " (time to clean the air filter). (Refer to the
chapter "Maintenance" in the indoor unit manual.)
3. The system operates but cooling or heating is
insufficient;
• Check if air inlet or outlet of outdoor or indoor unit
is not blocked by obstacles.
Remove any obstacle and make it well-ventilated.
• Check if the air filter is not clogged. (Refer to the
chapter "Maintenance" in the indoor unit manual.)
• Check the temperature setting.
• Check the fan speed setting on your remote con-
troller.
• Check for open doors or windows. Shut doors and
windows to prevent wind from coming in.
• Check if there are too many occupants in the
room during cooling operation.
• Check if the heat source of the room is excessive.
• Check if direct sunlight enters the room.
Use curtains or blinds.
• Check if the air flow angle is not proper.
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