Operating Tips - Fujitsu UTY-LRHYM Operating Manual

TROUBLESHOOTING
Symptom
CHECK ONCE Doesn't operate at all:
MORE
Poor Cooling (or Heating)
performance:
The unit operates
differently from the Remote
Controller's setting:
If the problem persists after performing these checks, or if you notice burning smells, or the OPERATION Indicator Lamp
and the TIMER Indicator Lamp flashes, immediately stop operation, turn off the electrical breaker and consult authorized
service personnel.

OPERATING TIPS

Operation and Performance
Heating Performance
G This air conditioner operates on the heat-pump princi-
ple, absorbing heat from outdoor air and transferring that
heat to indoor unit. As a result, the operating perform-
ance is reduced as outdoor air temperature drops. If you
feel that insufficient heating performance is being pro-
duced, we recommend you use this air conditioner in
conjunction with another kind of heating appliance.
G Heat-pump air conditioners heat your entire room by
recirculating air throughout the room, with the result that
some time may be required after first starting the air con-
ditioner until the room is heated.
Items to check
G Has the circuit breaker been turn off?
G Has there been a power failure?
G Has a fuse blown out, or a circuit breaker been tripped?
G Is the timer operating?
G Is the Air Filter dirty?
G Are the air conditioner's intake grille or outlet port blocked?
G Did you adjust the room temperature settings (temperature) cor-
rectly?
G Is there a window or door open?
G In the case of Cooling operation, is a window allowing bright sun-
light to enter? (Close the curtains.)
G In the case of Cooling operation, are there heating apparatus and
computers inside the room, or are there too many people in the
room?
G Is the unit set for QUIET operation?
G Are the Remote Controller's batteries dead?
G Are the Remote Controller's batteries loaded properly?
Microcomputer-controlled Automatic Defrosting
G When using the Heating mode under conditions of low
outdoor temperature and high humidity, frost may form
on the outdoor unit, resulting in reduced operating per-
formance.
In order to prevent this kind of reduced performance, this
air conditioner is equipped with a Microcomputer-
controlled Automatic Defrosting function. If frost forms,
the air conditioner will temporarily stop, and the defrost-
ing circuit will operate briefly (for about 7-15 minutes).
During Automatic Defrosting operation, the OPERATION
Indicator Lamp (green) will flash.
G After heating operation stops, if frost forms on the out-
door unit, the unit will start Automatic Defrosting opera-
tion. At this time, the outdoor unit will automatically stop
after operating for a few minutes.
(However, some type of multi-type air conditioner doesn't
provide this function.)
See Page
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