Operating instructions

En-11
TROUBLESHOOTING
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the electrical
breaker, and consult authorized service personnel.
Merely turning off the unit’s power switch will not completely disconnect the unit from the power source.
Always be sure to turn off the electrical breaker to ensure that power is completely off .
Before requesting service, perform the following checks:
Symptom Problem
See Page
NORMAL
FUNCTION
Doesn’t operate
immediately:
● If the unit is stopped and then immediately started again, the compressor
will not operate for about 3 minutes, in order to prevent fuse blowouts.
● Whenever the electrical breaker is turned off then on again, the protection
circuit will operate for about 3 minutes, preventing unit operation during
that period.
—
Noise is heard:
● During operation and immediately after stopping the unit, the
sound of water flowing in the air conditioner’s piping may be
heard. Also, noise may be particularly noticeable for about 2 to
3 minutes after starting operation (sound of coolant fl owing).
—
*
● During Heating operation, a sizzling sound may be heard oc-
casionally. This sound is produced by the Automatic Defrosting
operation.
9
Smells:
● Some smell may be emitted from the indoor unit. This smell is the result
of room smells (furniture, tobacco, etc.) which have been taken into the
air conditioner.
—
Mist or steam are
emitted:
● During Cooling operation, a thin mist may be seen emitted from the
indoor unit. This results from the sudden Cooling of room air by the air
emitted from the air conditioner, resulting in condensation and misting.
—
*
● During Heating operation, the outdoor unit’s fan may stop, and steam
may be seen rising from the unit. This is due to the Automatic Defrosting
operation.
9
Airfl ow is weak or stops:
*
● When Heating operation is started, fan speed is temporarily very low,
to allow internal parts to warm up.
*
● During Heating operation, if the room temperature rises above the
thermostat setting, the outdoor unit will stop, and the indoor unit will
operate at very low fan speed. If you wish to warm the room further, set
the thermostat to a higher setting.
—
*
● During Heating operation, the unit will temporarily stop
operation (between 2 and 16 minutes) as the Automatic
Defrosting mode operates. During the Automatic Defrosting
operation, the defrost indicator of the remote controller will turn on.
9
● The fan may stop when the unit is monitoring the room’s temperature.
—
Water is produced from
the outdoor unit:
*
● During Heating operation, water may be produced from the outdoor unit
due to the Automatic Defrosting operation.
9
WARNING!
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