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TROUBLESHOOTING
GUIDE
Your air conditioner is very reliable and requires little maintenance. However, the air conditioner's proper operation can be interrupt-
ed by a malfunction in the electrical system oi by incorrect operation. You cml try to overcome these simple malfunctions yourselt; with
the aid of the t;_llowing table and the malfanction displays shown in Fig. 16.
PROBLEM
POSSIBLE
CAUSE
SOLUTION
Air conditioner
does not work.
• No command is transmitted to air conditioner.
• Press the On/Off (Transmission)
button.
• Air conditioner did not receive transmitted
• Make sure that remote controller is pointed at air
command,
conditioner
during command transmission.
POWER indicator
light is not lit.
• Air conditioner
is not properly connected.
• Check electrical connection.
• Automatic interrupter switched Off.
• Reset interrupter.
• Fuse burned.
• Replace fuse.
FILTER indicator
light is lit.
• Filters require cleaning.
• Remove and clean filters.
• For 40BN038 move operation switch to OFF
position for 5 sec. and return it to REMOTE.
• For 40BN018,024,030
press the operation push
button continuously for 5 seconds.
Air conditioner
is working,
but
• Desired temperature setting is higher than
• Lower the desired temperature setting.
does not perform the required
room air temperature
when operating in the
operation.
COOLING mode.
• Desired temperature setting is lower than room
• Raise the desired temperature setting.
air temperature when operating in the HEATING
mode.
(ON)/(AIR COND). Indicator
light is
• The control system is malfunctioning.
continuously
flashing.
Various indicator lights
behave differently than
shown in Fig, 13,
• There is no direct line of sight between
the remote controller and the air conditioner.
• The air conditioner
has reached the desired
temperature and stopped the compressor
oper-
ation (thermostat function).
• Incorrect operation or malfunction.
• For 40BN036 slide the operation switch to OFF
position for 5 sec. and return it to REMOTE.
• For 40BN018,024,030
press the operation push
button, continuously for 5 seconds. Press once
again to operate the air conditioner.
Air conditioner
does not operate
• In 40BN036 the operation push button is in
with the remote controller.
AUTO or OFR (For 40BN018,024,030
go to
next bullet.)
• The remote controller batteries are weak.
• Replace the batteries.
• The remote controller is malfunctioning.
• Turn the air conditioner On and OFF using the
operation push button or slide switch.
The remote controller
of another
• Both remote controllers are transmitting
• Call service personnel.
air conditioner
interferes
with
on the same wavelength.
your air conditioner's
operation.
• For 40BN018,024,030
press the operation push
button continuously for 5 seconds.
• For 40BN036 slide the operation slide switch
to OFF position for 5 sec. and return it to
REMOTE.
• Restart the air conditioner, if the problem per-
sists, call service personnel.
• For 40BN036 turn the operating switch to
REMOTE position.
10
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