Trouble - Cause - Solution - Toyotomi UTN-18AP User Manual

MALFUNCTION ANALYSIS
General phenomenon analysis
Please check below items before asking for maintenance. If the malfunction
still cannot be eliminated, please contact local dealer or qualifi ed professionals.
TROUBLE – CAUSE – SOLUTION
Phenomenon
Indoor unit cannot receive
remote controller's signal
or remote controller has
no action.
Check for
Whether it is interfered se-
verely (such as static elec-
tricity, stable voltage)?
Whether remote controller
is within the signal receiv-
ing range?
Whether there are obsta-
cles?
Whether remote controller
is pointing at the receiving
window?
Is sensitivity of remote
controller low; fuzzy dis-
play and no display?
No display when operating
remote controller?
Fluorescent lamp in room?
90
Solution
Pull out the plug. Reinsert
the plug after about 3 min-
utes, and then turn on the
unit again.
Signal receiving range is
8 m.
Remove obstacles.
Select proper angle and
point the remote controller
at the receiving window on
indoor unit.
Check the batteries. If the
power of batteries is too
low, please replace them.
Check whether remote
controller appears to be
damaged. If yes, replace it.
• Take the remote controller
close to indoor unit.
• Turn off the fl uoresent
lamp and then try it again.
GB