Lennox LI012CI-230P432 Owner's Manual page 22

Malfunction analysis
Phenomenon
Odours are
such as furniture and cigarette,
emitted
etc.
Air conditioner
such as thunder, wireless
operates nor-
devices, etc.
mally suddenly
"Water
turned off just now?
noise
Cracking
turned off just now?
noise
Check items
20
Solution
power, and then turn on the
unit again.
the unit, which is a normal
phenomenon.
caused by expansion and/or
contraction of panel or other
parts due to the change of
temperature.