Troubleshooting - Daikin RZVF50 Installation Manual

3. THE FAN SPEED IS DIFFERENT FROM THE
SETTING
• Pressing the fan speed control button
does not change the fan speed.
During the COOLING OPERATION, the low
fan speed or a gentle wind is used to prevent
the discharge of melt water.
After a while, the fan speed can be changed.
( The fan speed cannot be set for the
PROGRAM DRY OPERATION.)
4. WHITE MIST COMES OUT OF THE AIR
CONDITIONER
• When humidity is high during the COOL­
ING OPERATION (In oily or dusty places)
If the inside of an indoor unit is extremely
contaminated, the temperature distribution
inside a room becomes uneven. It is neces­
sary to clean the inside of the indoor unit.
Ask your local dealer for details on cleaning
the indoor unit.
This cleaning requires a qualified service
person.
Check the usage environment.
5. NOISE OF AIR CONDITIONERS
• A low continuous flow "Shuh" sound
which is heard when the air conditioner
is in the COOLING or DEFROST OPERA­
TION or a trickling sound which is heard
when the air conditioner is in the DE­
FROST OPERATION.
This is the sound of refrigerant gas flowing
through both indoor and outdoor units.
• A "Pishi-pishi" squeaking sound is heard
when the air conditioner is in operation
or after the stop of operation.
Expansion and contraction of resin parts
caused by temperature change makes this
noise.
6. DUST FROM THE INDOOR UNITS
• Dust may blow out from the unit after
starting operation from long resting time.
Dust absorbed by the unit blows out.
7. THE INDOOR UNITS GIVE OFF ODORS
• During operation
The unit absorbs the smell of rooms,
furniture, cigarettes, etc., and then emits
them.
If odor is a concern, you can set to zero fan
speed when the indoor temperature reaches
the set temperature.
For details, contact your local dealer.
8. THE AIR CONDITIONER DOES NOT COOL
EFFECTIVELY
• The air conditioner is operating in the
PROGRAM DRY OPERATION.
This is because program dry mode operates
so that the indoor temperature decreases as
little as possible.
Lower the indoor temperature using the
COOLING OPERATION, and then use the
PROGRAM DRY OPERATION.
(Refer to CHARACTERISTICS OF THE
PROGRAM DRY OPERATION on page 65.)
• Read through characteristics of the
COOLING OPERATION, and
characteristics of the PROGRAM DRY
OPERATION on page 64-65.

10. TROUBLESHOOTING

Please check before requesting a service.
1. If the air conditioner does not operate at all.
• Check if fuse has blown.
Turn off the power supply.
• Check if the power circuit breaker is blown.
If the tab of power circuit breaker is in the OFF
position, turn the power on with the power
circuit breaker switch.
If the tab of power circuit breaker is in the trip
position do not turn the power on with the
power circuit breaker switch.
Contact your local dealer.
Power circuit breaker
(Earth leakage breaker)
• Check if there is a power failure.
Wait until power is restored. If power failure
occurs during operation, the air conditioner
automatically restarts immediately after the
power supply recovers.
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ON