Specifications

30
VII. Troubleshooting
installation & Maintenance Manual
2.Troubleshooting Flow Chart
start
indoor unit operates
but outdoor unit
doesn`t operates
indoor unit cannot
receive signal from
remote control
indoor unit operation
pilot lamp flashes
(see the fault problem
self-check table)
indoor unit cannot receive
signal from remote controller,
operation pilot lamp doesn`t
flash when pressing
emergency switch
outdoor unit
is in test
running mode.
Outdoor unit
is not in test
running mode
see page 33 for
" inspection on
receiver circuit board"
check room
temperature
thermistor
see page 34 for
"inspection on
outdoor unit"
Reasons: indoor unit
flash twice- faults of room temperature
thermistor and pipe temperature
thermistor Flash thrice- faults of
indoor fan motor
see page 32 for
"inspection of
indoor fan motor"
check pipe temperature
thermistor, see page 32
for "check point and its voltage"
check room temperature
thermistor, see page
32 for "check point
and its voltage"
See page 34 for "inspection
on electric control board