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12
English
*2 The inside of the indoor unit needs to be
washed. Specialized techniques are required
for cleaning the unit, so contact your dealer.
*3 This valve controls the amount of gas flow
(refrigerant) through indoor unit.
10. TROUBLE SHOOTING
If one of the following malfunctions occur, take
the measures shown below and contact your
Daikin dealer.
WARNING
Stop operation and shut off the power if any-
thing unusual occurs (burning smells, etc.)
Leaving the unit running under such circum-
stances may cause breakage, electrical shock, or
fire.
Contact your dealer.
• If a safety device such as a fuse, a breaker or an
earth leakage breaker frequently actuates;
Measure : Do not turn on the main power switch.
• If the ON/OFF switch does not properly work;
Measure: Turn off the main power switch.
• If water leaks from the unit;
Measure: Stop the operation.
• If the display “
”, the unit number and the
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.
If the system shuts down due to an error, the
backup operation function may allow the unit to
continue running for several hours after it is
started back up, but if this happens, be sure to
contact your dealer.
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.
If it is impossible to fix the problem yourself after
checking all the above items, contact your dealer.
Let him know the symptoms, system name, and
model name (listed on the warranty card).
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 automatically
restarts immediately after the power supply is
recovered.
• Check if no fuse has blown.
Turn off the power supply.
• Check if the breaker is
down.
Turn the power on with
the breaker switch in the
off position.
Do not turn the power on
with the breaker switch in the trip position.
(Contact your dealer.)
2. If the system stops soon after starting the opera-
tion;
• Check if air inlet or outlet of 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 operation manual of the indoor unit.
And clean the air filter.
• Check if all the valves in the water piping system.
Open all the valves in the water piping system.
• Check if a strainer is choked.
Clean a strainer.
• Check if a heat source water is circulating.
Inspect the water system.
• Check if the inlet temperature of the heat source
water is within its range.
Do not exceed its range.
• Check if the water quantity of the heat source
water is within its range.
Do not exceed its range.
3. The system operates but cooling or heating is
insufficient;
• Check if air inlet or outlet of 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 operation manual of the indoor unit.
And clean the air filter.
• Check the temperature setting.
Refer to “Operation procedure”.
• Check the fan speed setting on your remote con-
troller.
Refer to “Operation procedure”.
• Check if the air flow angle is not proper.
Refer to “Operation procedure”.
• Check for open doors or windows.
Shut doors and windows to prevent wind from
coming in.
• Check if direct sunlight enters the room during
cooling operation.
Use curtains or blinds.
• Check if there are too many occupants in the
room during cooling operation.
TEST
Switch
ON
OFF
Trip position
Breaker
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