Nortek GHH09(2.6)LUK4DH Owner's Manual page 25

Malfunction analysis
Malfunction
Odors are
emitted
Air conditioner
operates
erratically
"Water
noise
Cracking
noise
Check items
room such as cigarettes?
such as thunder
Has air conditioner just been
turned on or turned off ?
Has air conditioner just been
turned on or turned off ?
caused by expansion and/or
contraction of panel or other
parts due to the change of
21
Solution