Care And Cleaning Method; Troubleshooting - Daikin LRMEQ5AY1 Manuel D'utilisation

5-2 Install an alarm if operational errors are
likely to degrade the commodities in
storage.
The unit is provided with a terminal to output an
alarm signal.
If the system should malfunction and there is no
alarm, the operation of the unit will be inter-
rupted for a long time and damage to the com-
modities in storage may result.
The installation of an alarm is recommended in
order to take appropriate measures promptly in
such cases.
For details, consult your dealer.

6. CARE AND CLEANING METHOD

Be sure to stop the operation of the unit with the
power switch and turn off the power (i.e., turn off
the earth leakage breaker) before starting the
maintenance of the unit.
CAUTION
Do not touch the aluminium fin directly at the
time of cleaning.
Doing so may result in injury.
Do not wash the unit with water.
Doing so may result in electric shock or ignition.
Be sure to stop the operation of the unit and
turn off the power circuit breaker at the time
of cleaning, maintenance and inspection.
Otherwise, electric shock or injury may result.
• Request your dealer for heat exchanger cleaning
periodically.
• Turn off the power (i.e., turn off the earth leakage
breaker) if the unit is not used for a long time.

7. TROUBLESHOOTING

7-1 The following cases are not malfunc-
tions.
1. The unit does not operate.
• The unit is restarted immediately after the unit
comes to a stop.
The unit is under control in order not to impose
a heavy duty on the machinery parts. The oper-
ation of the unit will start in 1 to 5 minutes.
• The unit has been just turned on.
The microprocessor requires preparations.
Wait for approximately two minutes.
2. The unit does not come to a stop.
• The RUN switch was turned off a while ago.
The unit operates for a while before the unit
comes to a stop in order to protect the machin-
ery parts. The unit will come to a stop after the
operation is over.
English
3. The unit comes to a stop while the inner tem-
perature is high.
• The unit is in cooling operation.
This phenomenon occurs because the inner
temperature is not distributed evenly. The unit
will go into cooling operation soon.
4. The unit generates noise.
• The unit in cooling or defrosting operation gen-
erates low hissing sound continuously.
This is the sound of gas (refrigerant) flowing in
the condensing unit.
• The unit generates hissing sound immediately
after the unit starts operating or comes to a
stop.
This is the sound of gas (refrigerant) flowing.
• The unit rattles when the unit is operated and
stopped repeatedly.
This is the sound of gas (refrigerant) flowing
inside the condensing unit.
5. The outdoor fan does not rotate.
• The unit is in operation.
The fan is under RPM control in order to main-
tain the optimum operation of the product.
6. Neither the compressor of the outdoor unit
nor the outdoor fan comes to a stop.
• The phenomenon occurs after the unit comes
to a stop.
The compressor and outdoor fan continue
operating in order to prevent the detention of
refrigerant oil and refrigerant. They will come to
a stop in about 5 to 10 minutes.
7-2 Check before Requesting Servicing.
1. The unit does not operate at all.
• Has the power supply fuse not blown out?
Turn off the power. (Consult your dealer for the
replacement of the power supply fuse.)
• Is the power circuit breaker not turned off?
Turn on the power if the knob of the power cir-
cuit breaker is set to the OFF position.
Do not turn on the
power if the knob of
the power circuit
breaker is set to the
trip position. (Consult
your dealer.)
• Is there no blackout?
Wait until power is restored. If power failure
occurs during operation, the system automati-
cally restarts immediately after the power sup-
ply is recovered.
• Are all the power supplies turned on?
Turn all the power on.
ON
Switch
Trip position
Breaker
OFF
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