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TROUBLESHOOTING

WARNING!

Symptom

Doesn’t operate immedi-
ately:

Noise is heard:

Smells:

Mist or steam are
emitted:

Airflow is weak or stops:

Water is produced from
the outdoor unit:

Problem

If the unit is stopped and then immediately started again, the com-
pressor will not operate for about 3 minutes, in order to prevent
fuse blowouts.

Whenever the Power Supply Plug is disconnected and then re-
connected to a power outlet, the protection circuit will operate for
about 3 minutes, preventing unit operation during that period.

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.

During Heating operation, a sizzling sound may be heard occasional.
This sound is produced by the Automatic Defrosting operation.

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.

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 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 Automatic
Defrosting operation.

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 for a higher setting.

During Heating operation, the unit will temporarily stop opera-
tion (between 7 and 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 operation 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.

During Heating operation, water may be produced from the out-
door unit due to Automatic Defrosting operation.

See Page

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5

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NORMAL

FUNCTION

In the event of a malfunction (burning smell, etc.), immediately stop operation, disconnect 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:

9312175017-01_en.pm6.5

03.7.29, 9:33 AM

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www.enindel.com

Summary of Contents for HOW-7UB

Page 1: ...liano E vIk OPERATING MANUAL BEDIENUNGSANLEITUNG MODE D EMPLOI MANUAL DE FUNCIONAMIENTO MANUALE DI ISTRUZIONI MANUAL DE INSTRU ES P N9312855018 01 ROOM AIR CONDITIONER WALL MOUNTED TYPE HEAT COOL MODE...

Page 2: ...cord are required Provide occasional ventilation during use Do not direct air flow at fireplaces or heating apparatus Do not climb on or place objects on the air conditioner Do not hang objects from t...

Page 3: ...oner operation SWING OPERATION The Air Flow Direction Louvers swings automatically up and down so that the air speeds to every nook and corner of your room REMOVABLE INTAKE GRILLE The indoor unit s In...

Page 4: ...TART STOP button T AIR FLOW DIRECTION button U SWING LOUVER button V ACL button W TEST RUN button This button is used when installing the conditioner and should not be used un der normal conditions as...

Page 5: ...range becomes appre ciably reduced replace the batteries and press the ACL button with the tip of a ballpoint pen or other small object Turn on the Power 1 Connect the Power Supply Plug Fig 1 C to an...

Page 6: ...e To Set the Fan Speed Press the FAN CONTROL button Fig 6 R Each time the button is pressed the fan speed changes in the following order AUTO HIGH MED LOW QUIET About three seconds later the entire di...

Page 7: ...eed for about 3 to 5 minutes after which it will switch to the selected fan setting This period of time is provided to allow the indoor unit to warm up before begin full operation When the room temper...

Page 8: ...k on the remote control unit s display is flashing The flashing will continue for about 30 seconds 3 Press SET button Fig 6 P to select ON TIMER opera tion The ON Timer mark will be shown on the remot...

Page 9: ...in accordance with the time setting When the time has elapsed the air conditioner completely stops During Cooling Dry operation When the SLEEP timer is set the thermostat setting is auto matically rai...

Page 10: ...ing range for more than 30 minutes they will automatically return to posi tion 3 When used in a room with infants chil dren elderly or sick persons the air direction and room temperature should be con...

Page 11: ...utes the unit will automatically switch the swing range to the horizontal flow range to prevent the condensation of moisture on the outlet MANUAL AUTO OPERATION Use the MANUAL AUTO operation in the ev...

Page 12: ...ose the Intake Grille For purposes of example the illustration shows the unit without Intake Grille installed Dust can be cleaned from the Air Filter either with a vacuum cleaner or by washing the fil...

Page 13: ...n 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 Automatic Defrosting operation When Heating operation is started fan sp...

Page 14: ...ash Heating Performance This air conditioner operates on the heat pump princi ple absorbing heat from outdoor air and transferring that heat indoors As a result the operating performance is reduced as...

Page 15: ...damage Also during Cooling and Dry modes if the unit is used under conditions of lower temperature than those listed above the heat exchanger may freeze leading to water leakage and other damage Do no...

Page 16: ...9312175017 01_Pt pm6 5 03 7 29 9 39 AM 15 www enindel com...

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