13-1
TROUBLESHOOTING
SM XLFDCI 1-A.1 GB
13. TROUBLESHOOTING
13.1
Models: XLF 9 / GC 9, XLF 12 / GC 12
ELECTRICAL & CONTROL TROUBLESHOOTING
ATTENTION:
check for broken or loose cable lugs first.
Problem Cause Remedy
Unit does not operate.
Stand-by indicator does
not light up
Unit not connected to power
Power failure
Plug in the power cord
Check main fuse
Unit does not operate.
Stand-by indicator lights.
Remote control malfunctions
The remote control is locked
Check remotecontrol
batteries
Try to operate from a closer
distance
Start from on-unit controls
Unlock the remote control
Unit does not respond
properly
to remote control
command
IR signal does not reach unit
Distance between remote control
and unit too large or aimed at from
improper angle
IR receiver on-unit exposed to
strong light source
Check for obstruction
between unit and remote
control. Clear if needed.
Get closer to unit.
Dim lights, fluorecents
especially
Air does not blow out from
indoor unit
De-icing protection mode is
activated
Unit in AUTO FAN mode
Over cooling in DRY
Normal operation in
HEATING mode
Normal operation in DRY
mode
COOLING, DRY or
HEATING does not start
immediately
3-min. Compressor delayed start
Normal operation for these
modes
Unit functions but does not
perform sufficiently
Improper temperature setting Unit
capacity in sufficient for load or
room size
Reset temperature Consult
your dealer
CONTENTS
