Before Requesting Service - NEC RC122 Owner's Manual

BEFORE REQUESTING SERVICE

When you find something wrong with your room air conditioner, please check carefully referring to the
following items. If you can't find out the causes of trouble, get into contact with your dealer.
A. WHEN THE AIR CONDITIONER
CANNOT OPERATE;
1. Is the air conditioner plugged into the
receptacle properly?
2. Is there a local power failure?
Try another electrical product.
3. Has the air conditioner been accidentally
switched off?
4. Is the circuit overloaded by other devices on
the same line?
5. At cooling condition:
Is the thermostat set too high temperature
(the lowest number position of the pannel)
compared with the temperature of indoor?
NOTE
SPLASH PROOF: The outdoor side of this appliance is splash proof and the indoor side is
ordinary.
B. AIR CONDITIONER RUNS, BUT
DOES NOT COOL SUFFICIENTLY;
1. Is the operation switch set properly?
2. Is the thermostat control set properly to
provide the desired temperature?
3. Are there too many people than the usual
number in the room?
4. Is the air circulation impeded by drapes,
furniture, etc., or by an improper vane
setting?
5. Are the doors or windows open, or is there an
unusual heat source in the room?
6. Is the ventilation damper closed for maximum
cooling?
7. Is the air filter clean so that it will not obstruct
the air flow?
- 6 -