– 69 –
TROUBLESHOOTING
In the event of a malfunction (burning smell, etc.), immediately stop operation, immediately stop operation, dis-
connect the Power Supply Plug, 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 disconnect the Power Supply Plug or turn off your circuit breaker to ensure that power is completely off.
Before requesting service, perform the following checks :
Symptom Problem See Page
NORMAL
FUNCTIONS
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 Power Supply Plug is disconnected and then
reconnected to a power outlet, the protection circuit will
operate for about 3 minutes, preventing unit operation dur-
ing 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 flowing).
• During operation, a slight squeaking sound may be heard.
This is the result of minute expansion and contraction of the
front cover due to temperature changes.
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 or Dry 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 condition-
er, resulting in condensation and misting.
Airflow is weak or stops :
• When Heating operation is started, fan speed is temporarily
very low, to allow internal parts to warm up.
Water is produced from the
outdoor unit :
• During Heating operation, water may be produced from the
outdoor unit due to Automatic Defrosting operation.
The outdoor unit does not
stop even when heating oper-
ation is stopped :
• When there is frost on the outdoor unite when heating oper-
ation is stopped, defrosting will be performed automatically.
At this time, OPERATION Indicator Lamp will flash, and
operation will stop after the outdoor unit has run for several
minutes.
• During Heating operation, a sizzling sound may be heard
occasional. This sound is produced by the Automatic
Defrosting operation.
• During Heating operation, the outdoor unit’s fan may stop,
and steam may be seen rising from the unit. This is due to
Automatic Defrosting operation.
• During Heating operation, the unit will temporarily stop
operation (between 7and 15 minutes) as the Automatic
Defrosting mode operates. During Automatic Defrosting
operation, the OPERATION indicator lamp will flash.
• The fan may operate at very low speed during Dry opera-
tion or when the unit is monitoring the room’s temperature.
• During SUPER QUIET operation, the fan will operate at
very low speed.
• In the monitor AUTO operation, the fan will operate at very
low speed.
–––––
–––––
–––––
–––––
–––––
70
70
70
70
61
61
61
To Next Page
Loading...
Need help?
General
