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Chatter or hum is heard
from the control box while
the system is operating.
Incoming source power is
poor or low voltage compo-
nent is faulty.
Check for proper voltage
selection on 208/230 volt
units, remove excess or
undersized power cable, and
check incoming power.
Call 1-800-KwiKool.
Fault Possible Cause
Possible Solution
99 Flashes on display Ambient room temperature
over 99 degrees F.
Unit is working properly.
Lowering of room tempera-
ture will rectify the flashing.
Temperature below 60
Flashes on display in Cool
Mode.
Ambient room temperature
under 60 degrees F.
Limits of unit have been
reached in cool mode.
Operating temperatures are
65 - 105 degrees F.
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