Tips For Energy Saving; Troubleshooting - Technibel Climatisation MCAV 77C5VA Series Operating Instructions Manual

WARNING
This air clean filter cannot remove harmful gases or vapors nor
ventilate air in the room. You must open doors or windows
frequently when you use gas or oil heating appliances.
Otherwise there is a risk of suffocation in an extreme case.
NOTE
1. Two air clean filters for one indoor unit are in this
polyethylene bag.
2. Open the bag just before installing the air clean filters, if not the
deodorizing effect durability of the filter may be decreased.
AIR CLEAN FILTER INSTALLATION PROCEDURE
The air clean filter needs to be installed behind the air filter.
1. Remove the air filter.
2. Install the air clean filter in the position shown in the figure with
the symbol "FRONT" facing the air filter.
3. Reinstall the air filter.
Air clean filter
Front: white
Rear: black
Air clean filter
REPLACEMENT OF AIR CLEAN FILTER
• The filter is disposable.
• Do not throw away the filter frame.
• The used filter cannot be reused even after cleaning up.
• Obtain the filters for replacement at your nearest dealer (model
STK-F4B).
• Check the state of dirtiness at least once every two weeks.
• Replace the filter when it changes to be so dirty as the colour
of the label "Color gauge for filter replacement".

TIPS FOR ENERGY SAVING

DO NOT:
Block the air intake and outlet of the unit.
If they are obstructed, the unit will not work well, and may be
damaged.
Let direct sunlight into the room. Use sunshades, blind or
curtain.
DO:
Always try to keep the anti-mold filter clean. A clogged filter will
impair the performance of the unit.
To prevent conditioned air from escaping, keep windows, doors
and any other openings closed.

TROUBLESHOOTING

WARNING
The use of portable telephones near the air-conditioner may cause
disturbance to its normal operation and must be avoided. In case
abnormal operation is noticed, (OPR operation lamp lights but
outdoor unit will not run) to restore normal operation turn-off electric
supply for 60 seconds at least, by disconnecting the main switch
or the wall plug, then start again the air-conditioner.
If your air conditioner does not work properly, first check the
following points before requesting service.
If it still does not work properly, contact your dealer or service
center.
Trouble: the air conditioner does not run at all.
Possible cause:
1. Power failure.
2. Leakage breaker tripped.
3. Line voltage is too low.
4. Operation button is OFF.
5. Batteries in remote control unit have run down.
Remedy:
1. Restore power.
2. Contact service center.
3. Consult your electrician or dealer.
4. Press the button again.
5. Replace batteries.
Trouble: O.P.R. (operation) lamp flashes and the air conditioner
does not operate.
Possible cause:
1. Trouble in wiring system.
Remedy:
1. Contact service center.
Trouble: Compressor runs but soon stops.
Possible cause:
1. Obstruction in front of condenser coil.
Remedy:
1. Remove obstruction.
Trouble: Poor cooling or heating performance.
Possible cause:
1. Dirty or clogged air filter.
2. Heat source or many people in room.
3. Doors and/or windows are open.
4. Obstacle near air intake or air discharge port.
5. Thermostat is set too high (for cooling) or too low (for heating).
6. Outdoor temperature is too low (heat pump version).
7. Defrosting system does not work (heat pump version).
Remedy:
1. Clean air filter to improve airflow.
2. Eliminate heat source if possible.
3. Shut them to keep the heat or cold out.
4. Remove it to ensure good airflow.
5. Set the temperature lower (or higher).
6. Try to use a back-up heater.
7. Consult your dealer.
Trouble: Clicking sound is heard from the air conditioner.
Possible cause:
1. In heating or cooling operation, any plastic parts may expand
or shrink due to a sudden temperature change. In this event,
a clicking sound may occur.
Remedy:
1. This is normal, and the sound will soon disappear.
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