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
Summary of Contents for CSU 12HCAA
Page 48: ...2005 12 20...
Page 49: ......
Page 57: ...9 59...
Page 59: ...11 59...
Page 60: ...12 59...
Page 61: ...13 59...
Page 62: ...14 59...
Page 63: ...15 59...
Page 64: ...16 59...
Page 65: ...17 59...
Page 66: ...18 59...
Page 67: ...19 59 Installation Guide 4 Indoor unit and outdoor unit explosion diagram and spare parts list...
Page 68: ...20 59 CS 23H3 V77AY1A CS 25H3 V AY1A CS 32H3 V AH4 INDOOR UNIT...
Page 69: ...21 59 CS 51H3 H AH1 INDOOR UNIT...
Page 70: ...22 59 CS 66H3 N AS INDOOR UNIT...
Page 71: ...23 59 CS 88H3 Q AT INDOOR UNIT...
Page 72: ...24 59 KFR 23GW AC CS 25H3 V AY1A OUTDOOR UNIT...
Page 73: ...25 59 CS 32H3 V AH4 OUTDOOR UNIT...
Page 74: ...26 59 CS 51H3 H AH1 OUTDOOR UNIT...
Page 75: ...27 59 CS 66H3 N AS OUTDOOR UNIT...