Maintenance - NewTek NT-77HSDC07 Instruction Manual

observing the «+» and «-» polarity symbol shown on the
compartment wall.
To replace the batteries proceed in the same way.
NOTE:
1. Do not use old batteries or batteries of the wrong type. This may
lead to RC malfunctions.
2. If you do not use the RC unit for more than 1 month, remove the
batteries from the RC unit as they may leak and damage the unit.
3. The service life of the batteries if used daily is approximately
6 months.
4. Replace the batteries if there is no audio signal confirming
receipt of the RC commands or no command signal on the display.
5. AIR CONDITIONER MAINTENANCE
ATTENTION! Disconnect the AC from power supply before performing
any maintenance operations.
INDOOR UNIT FRONT PANEL MAINTENANCE
Careful maintenance and regular cleaning will help extend the
service life of the appliance and reduce power consumption.
Observe the following suggestions when cleaning the appliance:
– do not stand on an unstable surface when wiping the appliance;
you may fall down and injure yourself and damage the appliance;
– do not touch the metal parts of the housing when removing the
front panel to avoid injury;
– use a dry cloth to clean the front panel and the RC unit, if the
contamination will not come off use a damp cloth.
NOTE:
1. Do not submerge or wash the appliance and the RC unit in water!
2. Do not use alcohol-containing liquids, gasoline, oils or polishers
to clean the unit.
3. Do not apply too much force to the front panel as this may cause
it to fall off.
4. Do not use abrasive cleaners or metallic sponges to avoid
damage of the appliance's surface.
5. Do not use water with a temperature exceeding 45
cause warping and discoloration of the plastic.
AIR FILTER CLEANING
1. Raise the front panel to the stop, then lift the protruding part of
the filter and remove it.
2. Clean the filter with a vacuum cleaner or rinse it with water. If
the filter is heavily contaminated wash it in warm water with a
mild detergent. Let the filter dry completely in a shaded place.
3. Reinstall the filter and close the front panel.

MAINTENANCE

At the end of a season
The following action should be taken:
– turn on the AC in the VENTILATION for a prolonged time;
– disconnect the appliance from power supply;
– clean the air filter;
– wipe the indoor and outdoor units with a soft dry cloth;
– remove the batteries from the RC unit.
At the beginning of a season
The following action should be taken:
– ensure that the intake and exhaust openings on the indoor and
outdoor units are not blocked;
– ensure there is no corrosion or rust on the outdoor unit;
– ensure that the air filter has been cleaned;
– connect the AC to power supply;
– install the batteries into the RC unit.
6. TROUBLESHOOTING
The AC will not
1
turn on
The air is not
2
cooled/heated
AC control
3
malfunctions
Delayed
4
operation
Unpleasant
5
odor
Running water
6
sound
С. This may
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Crackling
7
sound
Moisture
sprayed out of
8
the exhaust
opening
Delayed air
discharge in
9
the HEATING
mode
Air discharge
interrupts for
10 5-10 minutes
in the heating
mode
The RC unit
11 does not work
correctly
– the plug is not firmly inserted in the
power socket.
– RC batteries are depleted.
– overload safety has been tripped.
– insufficient power system voltage.
Refrigerant leakage at the junctions of
the indoor and outdoor units, installers
must be called to check the quality of
their installation.
The appliance can malfunction
because of high interference (high
static electricity levels, power supply
interruptions). In this case disconnect
the AC from power supply and connect
again after 2 or 3 seconds.
Operating mode changes during
operation may take up to 3 minutes.
The AC can absorb unpleasant smells
(e.g. furniture smells, cigarette smoke)
which are then expelled with the
exhaust air.
– caused by refrigerant circulation in
the system and is not a malfunction.
– defrosting sound during heating.
The crackling is caused by the
temperature expansion or contraction
of the front panel.
Moisture occurs if the air in the room
becomes very cold because of cold
air discharge in the cooling or drying
mode.
The AC is not capable of immediate
hot air discharge. Please wait for 2-5
minutes.
The appliance defrosts automatically,
perspiration appears on the outer
surface. After defrosting the unit will
automatically resume operation.
– obstacles between the signal
receiver and the RC unit.
– RC batteries are depleted.
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