Toyotomi DCT 100HSPi, Service Manual

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Troubleshooting
Outdoor units
Temperature display disappear
Symptom Checking items Cause
Temperature Display does
not light.
Check if the mode display on
the LCD is FAN ONLY
You can not set the
temperature when the unit is on
FAN ONLY mode.
The Display Goes Off
Symptom Checking items Cause
The indication on the
display disappears after a
lapse of time.
Check whether the timer
operation has come to an end
when the OFF TIMER is
indicated on the display.
The air conditioner operation stops
since the set time elapsed.
The ON TIMER indicators
go off after a lapse of
certain time.
Check whether the timer
operation is started when the
ON TIMER is indicated on the
display.
When the time set to start the air
conditioner is reached, the air
conditioner will automatically start
and the appropriate indicator will go
off.
The Signal Receiving Tone does Not Sound
Symptom Checking items Cause
No receiving tone
sounds from the indoor
unit even when the
ON/OFF button is
pushed.
Check whether the signal
transmitter of the remote
controller is properly directed to
the receiver of the indoor unit
when the ON/OFF button is
pushed.
Direct the signal transmitter of the
remote controller to the receiver of
the indoor unit, and then repeatly
push the ON/OFF button twice.
Buttons on the remote
controller don't work.
Press Reset button.